NP Core Implementation Guide
1.0.0 - Release Nepal flag

NP Core Implementation Guide - Local Development build (v1.0.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Resource Profile: NP Core Encounter - Detailed Descriptions

Active as of 2026-10-14

Definitions for the np-core-encounter resource profile

See the documentation on how to interpret the contents of this table

0. Encounter
Definition

An interaction between a patient and healthcare provider(s) for the purpose of providing healthcare service(s) or assessing the health status of a patient.

ShortAn interaction during which services are provided to the patient
Control0..*
Is Modifierfalse
Summaryfalse
Alternate NamesVisit
Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (text.`div`.exists())
np-enc-1: An encounter SHALL carry at least one identifier whose system is namespaced under the assigning facility's NHFR code (i.e. http://nhfr.digitalhealth.gov.np/{nhfrCode}, with a non-empty code segment). (identifier.where(system.startsWith('http://nhfr.digitalhealth.gov.np/') and system != 'http://nhfr.digitalhealth.gov.np/').exists())
2. Encounter.implicitRules
Definition

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

ShortA set of rules under which this content was created
Comments

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

Control0..1
Typeuri
Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. Encounter.extension
Definition

An Extension


May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortExtensionAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Encounter.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them

    6. Encounter.extension:isPoliceCase
    Slice NameisPoliceCase
    Definition

    Indicates whether the encounter is taking place as part of a medico-legal (police) case, such as assault, accident, poisoning, or another incident requiring police involvement, as recorded in Nepal.

    ShortWhether this encounter is part of a medico-legal (police) case
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Is Police Case) (Extension Type: boolean)
    Is Modifierfalse
    Must Supporttrue
    Obligations
      ObligationsActor
      SHALL:populate-if-knownNP Core Creator
      SHALL:handleNP Core Consumer
      SHALL:handleNP Core Server
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      8. Encounter.modifierExtension
      Definition

      May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

      ShortExtensions that cannot be ignored
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
      Summaryfalse
      Requirements

      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      10. Encounter.identifier
      Definition

      Identifiers for this encounter. At least one identifier SHALL use a system URI namespaced under the assigning facility's National Health Facility Registry (NHFR) code (i.e. http://nhfr.digitalhealth.gov.np/{nhfrCode}), so encounter identifiers are globally unique without a centrally mandated visit-code system.


      Identifier(s) by which this encounter is known.

      ShortBusiness identifier(s) for this encounterIdentifier(s) by which this encounter is known
      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control10..*
      TypeIdentifier
      Is Modifierfalse
      Must Supporttrue
      Obligations
        ObligationsActor
        SHALL:able-to-populateNP Core Creator
        SHALL:handleNP Core Consumer
        SHALL:handleNP Core Server
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        12. Encounter.identifier.use
        Definition

        The purpose of this identifier.

        Shortusual | official | temp | secondary | old (If known)
        Comments

        Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

        Control0..1
        BindingThe codes SHALL be taken from IdentifierUsehttp://hl7.org/fhir/ValueSet/identifier-use|4.0.1
        (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

        Identifies the purpose for this identifier, if known .

        Typecode
        Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Requirements

        Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        14. Encounter.identifier.system
        Definition

        The namespace for the identifier value. At least one of an encounter's identifiers SHALL use a system formed from the assigning facility's NHFR code (http://nhfr.digitalhealth.gov.np/{nhfrCode}, as shown in the examples below); other identifier systems, such as a local EMR namespace, are also permitted.


        Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

        ShortNamespace URI for the identifier valueThe namespace for the identifier value
        Comments

        Identifier.system is always case sensitive.

        Control10..1
        Typeuri
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Requirements

        There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

        ExampleGeneral: http://www.acme.com/identifiers/patient
        Facility with NHFR code 00XX: http://nhfr.digitalhealth.gov.np/00XX
        Facility with NHFR code 12345: http://nhfr.digitalhealth.gov.np/12345
        Facility with NHFR code 98765: http://nhfr.digitalhealth.gov.np/98765
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        16. Encounter.identifier.value
        Definition

        The portion of the identifier typically relevant to the user and which is unique within the context of the system.

        ShortLocal visit or encounter number assigned by the facilityThe value that is unique
        Comments

        If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

        Control10..1
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        ExampleGeneral: 123456
        Facility-assigned encounter number: VISIT-2026-0000123
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        18. Encounter.status
        Definition

        planned | arrived | triaged | in-progress | onleave | finished | cancelled +.

        Shortplanned | arrived | triaged | in-progress | onleave | finished | cancelled +
        Comments

        Note that internal business rules will determine the appropriate transitions that may occur between statuses (and also classes).

        Control1..1
        BindingThe codes SHALL be taken from EncounterStatushttp://hl7.org/fhir/ValueSet/encounter-status|4.0.1
        (required to http://hl7.org/fhir/ValueSet/encounter-status|4.0.1)

        Current state of the encounter.

        Typecode
        Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supporttrue
        Obligations
          ObligationsActor
          SHALL:able-to-populateNP Core Creator
          SHALL:handleNP Core Consumer
          SHALL:handleNP Core Server
          Summarytrue
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          20. Encounter.class
          Definition

          Concepts representing classification of patient encounter such as ambulatory (outpatient), inpatient, emergency, home health or others due to local variations.

          ShortClassification of patient encounter
          Control1..1
          BindingUnless not suitable, these codes SHALL be taken from ActEncounterCodehttp://terminology.hl7.org/ValueSet/v3-ActEncounterCode
          (extensible to http://terminology.hl7.org/ValueSet/v3-ActEncounterCode)

          Classification of the encounter.

          TypeCoding
          Is Modifierfalse
          Must Supporttrue
          Obligations
            ObligationsActor
            SHALL:able-to-populateNP Core Creator
            SHALL:handleNP Core Consumer
            SHALL:handleNP Core Server
            Summarytrue
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            22. Encounter.type
            Definition

            Specific type of encounter (e.g. e-mail consultation, surgical day-care, skilled nursing, rehabilitation).

            ShortSpecific type of encounter
            Comments

            Since there are many ways to further classify encounters, this element is 0..*.

            Control0..*
            BindingThe codes SHOULD be taken from For example codes, see Encounter Type ValueSethttp://hl7.org/fhir/ValueSet/encounter-type|4.0.1
            (preferred to http://fhir.digitalhealth.gov.np/core/ValueSet/encounter-type-vs)
            TypeCodeableConcept
            Is Modifierfalse
            Must Supporttrue
            Obligations
              ObligationsActor
              SHOULD:able-to-populateNP Core Creator
              SHALL:handleNP Core Consumer
              SHALL:handleNP Core Server
              Summarytrue
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              24. Encounter.subject
              Definition

              The patient or group present at the encounter.

              ShortThe patient or group present at the encounter
              Comments

              While the encounter is always about the patient, the patient might not actually be known in all contexts of use, and there may be a group of patients that could be anonymous (such as in a group therapy for Alcoholics Anonymous - where the recording of the encounter could be used for billing on the number of people/staff and not important to the context of the specific patients) or alternately in veterinary care a herd of sheep receiving treatment (where the animals are not individually tracked).

              Control10..1
              TypeReference(NP Core Patient, Group, Patient, Group)
              Is Modifierfalse
              Must Supporttrue
              Must Support TypesNo must-support rules about the choice of types/profiles
              Obligations
                ObligationsActor
                SHALL:able-to-populateNP Core Creator
                SHALL:handleNP Core Consumer
                SHALL:handleNP Core Server
                Summarytrue
                Alternate Namespatient
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                26. Encounter.participant
                Definition

                The list of people responsible for providing the service.

                ShortList of participants involved in the encounter
                Control0..*
                TypeBackboneElement
                Is Modifierfalse
                Must Supporttrue
                Obligations
                  ObligationsActor
                  SHOULD:able-to-populateNP Core Creator
                  SHALL:handleNP Core Consumer
                  SHALL:handleNP Core Server
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  28. Encounter.participant.modifierExtension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                  Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                  ShortExtensions that cannot be ignored even if unrecognized
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                  Summarytrue
                  Requirements

                  Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                  Alternate Namesextensions, user content, modifiers
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  30. Encounter.participant.individual
                  Definition

                  Persons involved in the encounter other than the patient.

                  ShortPersons involved in the encounter other than the patient
                  Control0..1
                  TypeReference(NP Core Practitioner, NP Core RelatedPerson, NP Core PractitionerRole, Practitioner, PractitionerRole, RelatedPerson)
                  Is Modifierfalse
                  Summarytrue
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  32. Encounter.period
                  Definition

                  The start and end time of the encounter.

                  ShortThe start and end time of the encounter
                  Comments

                  If not (yet) known, the end of the Period may be omitted.

                  Control0..1
                  TypePeriod
                  Is Modifierfalse
                  Must Supporttrue
                  Obligations
                    ObligationsActor
                    SHALL:able-to-populateNP Core Creator
                    SHALL:handleNP Core Consumer
                    SHALL:handleNP Core Server
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    34. Encounter.period.start
                    Definition

                    The start of the period. The boundary is inclusive.

                    ShortStarting time with inclusive boundary
                    Comments

                    If the low element is missing, the meaning is that the low boundary is not known.

                    Control0..1
                    This element is affected by the following invariants: per-1
                    TypedateTime
                    Is Modifierfalse
                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                    Must Supporttrue
                    Obligations
                      ObligationsActor
                      SHALL:able-to-populateNP Core Creator
                      SHALL:handleNP Core Consumer
                      SHALL:handleNP Core Server
                      Summarytrue
                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                      36. Encounter.reasonCode
                      Definition

                      Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis.

                      ShortCoded reason the encounter takes place
                      Comments

                      For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis).

                      Control0..*
                      BindingThe codes SHOULD be taken from EncounterReasonCodeshttp://hl7.org/fhir/ValueSet/encounter-reason|4.0.1
                      (preferred to http://hl7.org/fhir/ValueSet/encounter-reason|4.0.1)

                      Reason why the encounter takes place.

                      TypeCodeableConcept
                      Is Modifierfalse
                      Must Supporttrue
                      Obligations
                        ObligationsActor
                        SHALL:populate-if-knownNP Core Creator
                        SHALL:handleNP Core Consumer
                        SHALL:handleNP Core Server
                        Summarytrue
                        Alternate NamesIndication, Admission diagnosis
                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                        38. Encounter.reasonReference
                        Definition

                        Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis.

                        ShortReason the encounter takes place (reference)
                        Comments

                        For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis).

                        Control0..*
                        TypeReference(NP Core Condition, NP Core Procedure, NP Core Observation, ImmunizationRecommendation, Condition, Procedure, Observation, ImmunizationRecommendation)
                        Is Modifierfalse
                        Must Supporttrue
                        Must Support TypesNo must-support rules about the choice of types/profiles
                        Obligations
                          ObligationsActor
                          SHALL:populate-if-knownNP Core Creator
                          SHALL:handleNP Core Consumer
                          SHALL:handleNP Core Server
                          Summarytrue
                          Alternate NamesIndication, Admission diagnosis
                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                          40. Encounter.hospitalization
                          Definition

                          Details about the admission to a healthcare service.

                          ShortDetails about the admission to a healthcare service
                          Comments

                          An Encounter may cover more than just the inpatient stay. Contexts such as outpatients, community clinics, and aged care facilities are also included.

                          The duration recorded in the period of this encounter covers the entire scope of this hospitalization record.

                          Control0..1
                          TypeBackboneElement
                          Is Modifierfalse
                          Must Supporttrue
                          Obligations
                            ObligationsActor
                            MAY:able-to-populateNP Core Creator
                            SHALL:handleNP Core Consumer
                            SHALL:handleNP Core Server
                            Summaryfalse
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            42. Encounter.hospitalization.modifierExtension
                            Definition

                            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                            ShortExtensions that cannot be ignored even if unrecognized
                            Comments

                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                            Control0..*
                            TypeExtension
                            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                            Summarytrue
                            Requirements

                            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                            Alternate Namesextensions, user content, modifiers
                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                            44. Encounter.hospitalization.origin
                            Definition

                            The location/organization from which the patient came before admission.

                            ShortThe location/organization from which the patient came before admission
                            Control0..1
                            TypeReference(NP Core Health Facility, NP Core Organization, NP Core Location, Location, Organization)
                            Is Modifierfalse
                            Must Supporttrue
                            Must Support TypesNo must-support rules about the choice of types/profiles
                            Obligations
                              ObligationsActor
                              MAY:able-to-populateNP Core Creator
                              SHALL:handleNP Core Consumer
                              SHALL:handleNP Core Server
                              Summaryfalse
                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                              46. Encounter.hospitalization.dischargeDisposition
                              Definition

                              Category or kind of location after discharge.

                              ShortCategory or kind of location after discharge
                              Control0..1
                              BindingFor example codes, see DischargeDispositionhttp://hl7.org/fhir/ValueSet/encounter-discharge-disposition|4.0.1
                              (example to http://hl7.org/fhir/ValueSet/encounter-discharge-disposition|4.0.1)

                              Discharge Disposition.

                              TypeCodeableConcept
                              Is Modifierfalse
                              Must Supporttrue
                              Obligations
                                ObligationsActor
                                MAY:able-to-populateNP Core Creator
                                SHALL:handleNP Core Consumer
                                SHALL:handleNP Core Server
                                Summaryfalse
                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                48. Encounter.serviceProvider
                                Definition

                                The organization that is primarily responsible for this Encounter's services. This MAY be the same as the organization on the Patient record, however it could be different, such as if the actor performing the services was from an external organization (which may be billed seperately) for an external consultation. Refer to the example bundle showing an abbreviated set of Encounters for a colonoscopy.

                                ShortThe organization (facility) responsible for this encounter
                                Control0..1
                                TypeReference(NP Core Health Facility, NP Core Organization, Organization)
                                Is Modifierfalse
                                Must Supporttrue
                                Must Support TypesNo must-support rules about the choice of types/profiles
                                Obligations
                                  ObligationsActor
                                  SHALL:populate-if-knownNP Core Creator
                                  SHALL:handleNP Core Consumer
                                  SHALL:handleNP Core Server
                                  Summaryfalse
                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

                                  See the documentation on how to interpret the contents of this table

                                  0. Encounter
                                  Invariantsnp-enc-1: An encounter SHALL carry at least one identifier whose system is namespaced under the assigning facility's NHFR code (i.e. http://nhfr.digitalhealth.gov.np/{nhfrCode}, with a non-empty code segment). (identifier.where(system.startsWith('http://nhfr.digitalhealth.gov.np/') and system != 'http://nhfr.digitalhealth.gov.np/').exists())
                                  2. Encounter.extension
                                  SlicingThis element introduces a set of slices on Encounter.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                  • value @ url
                                  • Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them

                                    4. Encounter.extension:isPoliceCase
                                    Slice NameisPoliceCase
                                    ShortWhether this encounter is part of a medico-legal (police) case
                                    Control0..1
                                    TypeExtension(Is Police Case) (Extension Type: boolean)
                                    Must Supporttrue
                                    Obligations
                                      ObligationsActor
                                      SHALL:populate-if-knownNP Core Creator
                                      SHALL:handleNP Core Consumer
                                      SHALL:handleNP Core Server
                                      6. Encounter.identifier
                                      Definition

                                      Identifiers for this encounter. At least one identifier SHALL use a system URI namespaced under the assigning facility's National Health Facility Registry (NHFR) code (i.e. http://nhfr.digitalhealth.gov.np/{nhfrCode}), so encounter identifiers are globally unique without a centrally mandated visit-code system.

                                      ShortBusiness identifier(s) for this encounter
                                      NoteThis is a business identifier, not a resource identifier (see discussion)
                                      Control1..?
                                      Must Supporttrue
                                      Obligations
                                        ObligationsActor
                                        SHALL:able-to-populateNP Core Creator
                                        SHALL:handleNP Core Consumer
                                        SHALL:handleNP Core Server
                                        8. Encounter.identifier.system
                                        Definition

                                        The namespace for the identifier value. At least one of an encounter's identifiers SHALL use a system formed from the assigning facility's NHFR code (http://nhfr.digitalhealth.gov.np/{nhfrCode}, as shown in the examples below); other identifier systems, such as a local EMR namespace, are also permitted.

                                        ShortNamespace URI for the identifier value
                                        Control1..?
                                        ExampleFacility with NHFR code 00XX: http://nhfr.digitalhealth.gov.np/00XX
                                        Facility with NHFR code 12345: http://nhfr.digitalhealth.gov.np/12345
                                        Facility with NHFR code 98765: http://nhfr.digitalhealth.gov.np/98765
                                        10. Encounter.identifier.value
                                        ShortLocal visit or encounter number assigned by the facility
                                        Control1..?
                                        ExampleFacility-assigned encounter number: VISIT-2026-0000123
                                        12. Encounter.status
                                        Must Supporttrue
                                        Obligations
                                          ObligationsActor
                                          SHALL:able-to-populateNP Core Creator
                                          SHALL:handleNP Core Consumer
                                          SHALL:handleNP Core Server
                                          14. Encounter.class
                                          Must Supporttrue
                                          Obligations
                                            ObligationsActor
                                            SHALL:able-to-populateNP Core Creator
                                            SHALL:handleNP Core Consumer
                                            SHALL:handleNP Core Server
                                            16. Encounter.type
                                            BindingThe codes SHOULD be taken from Encounter Type ValueSet
                                            (preferred to http://fhir.digitalhealth.gov.np/core/ValueSet/encounter-type-vs)
                                            Must Supporttrue
                                            Obligations
                                              ObligationsActor
                                              SHOULD:able-to-populateNP Core Creator
                                              SHALL:handleNP Core Consumer
                                              SHALL:handleNP Core Server
                                              18. Encounter.subject
                                              Control1..?
                                              TypeReference(NP Core Patient, Group)
                                              Must Supporttrue
                                              Must Support TypesNo must-support rules about the choice of types/profiles
                                              Obligations
                                                ObligationsActor
                                                SHALL:able-to-populateNP Core Creator
                                                SHALL:handleNP Core Consumer
                                                SHALL:handleNP Core Server
                                                20. Encounter.participant
                                                Must Supporttrue
                                                Obligations
                                                  ObligationsActor
                                                  SHOULD:able-to-populateNP Core Creator
                                                  SHALL:handleNP Core Consumer
                                                  SHALL:handleNP Core Server
                                                  22. Encounter.participant.individual
                                                  TypeReference(NP Core Practitioner, NP Core RelatedPerson, NP Core PractitionerRole)
                                                  24. Encounter.period
                                                  Must Supporttrue
                                                  Obligations
                                                    ObligationsActor
                                                    SHALL:able-to-populateNP Core Creator
                                                    SHALL:handleNP Core Consumer
                                                    SHALL:handleNP Core Server
                                                    26. Encounter.period.start
                                                    Must Supporttrue
                                                    Obligations
                                                      ObligationsActor
                                                      SHALL:able-to-populateNP Core Creator
                                                      SHALL:handleNP Core Consumer
                                                      SHALL:handleNP Core Server
                                                      28. Encounter.reasonCode
                                                      Must Supporttrue
                                                      Obligations
                                                        ObligationsActor
                                                        SHALL:populate-if-knownNP Core Creator
                                                        SHALL:handleNP Core Consumer
                                                        SHALL:handleNP Core Server
                                                        30. Encounter.reasonReference
                                                        TypeReference(NP Core Condition, NP Core Procedure, NP Core Observation, ImmunizationRecommendation)
                                                        Must Supporttrue
                                                        Must Support TypesNo must-support rules about the choice of types/profiles
                                                        Obligations
                                                          ObligationsActor
                                                          SHALL:populate-if-knownNP Core Creator
                                                          SHALL:handleNP Core Consumer
                                                          SHALL:handleNP Core Server
                                                          32. Encounter.hospitalization
                                                          Must Supporttrue
                                                          Obligations
                                                            ObligationsActor
                                                            MAY:able-to-populateNP Core Creator
                                                            SHALL:handleNP Core Consumer
                                                            SHALL:handleNP Core Server
                                                            34. Encounter.hospitalization.origin
                                                            TypeReference(NP Core Health Facility, NP Core Organization, NP Core Location)
                                                            Must Supporttrue
                                                            Must Support TypesNo must-support rules about the choice of types/profiles
                                                            Obligations
                                                              ObligationsActor
                                                              MAY:able-to-populateNP Core Creator
                                                              SHALL:handleNP Core Consumer
                                                              SHALL:handleNP Core Server
                                                              36. Encounter.hospitalization.dischargeDisposition
                                                              Must Supporttrue
                                                              Obligations
                                                                ObligationsActor
                                                                MAY:able-to-populateNP Core Creator
                                                                SHALL:handleNP Core Consumer
                                                                SHALL:handleNP Core Server
                                                                38. Encounter.serviceProvider
                                                                TypeReference(NP Core Health Facility, NP Core Organization)
                                                                Must Supporttrue
                                                                Must Support TypesNo must-support rules about the choice of types/profiles
                                                                Obligations
                                                                  ObligationsActor
                                                                  SHALL:populate-if-knownNP Core Creator
                                                                  SHALL:handleNP Core Consumer
                                                                  SHALL:handleNP Core Server

                                                                  See the documentation on how to interpret the contents of this table

                                                                  0. Encounter
                                                                  Definition

                                                                  An interaction between a patient and healthcare provider(s) for the purpose of providing healthcare service(s) or assessing the health status of a patient.

                                                                  ShortAn interaction during which services are provided to the patient
                                                                  Control0..*
                                                                  Is Modifierfalse
                                                                  Summaryfalse
                                                                  Alternate NamesVisit
                                                                  Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
                                                                  dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
                                                                  dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
                                                                  dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
                                                                  dom-6: A resource should have narrative for robust management (text.`div`.exists())
                                                                  np-enc-1: An encounter SHALL carry at least one identifier whose system is namespaced under the assigning facility's NHFR code (i.e. http://nhfr.digitalhealth.gov.np/{nhfrCode}, with a non-empty code segment). (identifier.where(system.startsWith('http://nhfr.digitalhealth.gov.np/') and system != 'http://nhfr.digitalhealth.gov.np/').exists())
                                                                  2. Encounter.id
                                                                  Definition

                                                                  The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

                                                                  ShortLogical id of this artifact
                                                                  Comments

                                                                  The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

                                                                  Control0..1
                                                                  Typeid
                                                                  Is Modifierfalse
                                                                  Summarytrue
                                                                  4. Encounter.meta
                                                                  Definition

                                                                  The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

                                                                  ShortMetadata about the resource
                                                                  Control0..1
                                                                  TypeMeta
                                                                  Is Modifierfalse
                                                                  Summarytrue
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  6. Encounter.implicitRules
                                                                  Definition

                                                                  A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

                                                                  ShortA set of rules under which this content was created
                                                                  Comments

                                                                  Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

                                                                  Control0..1
                                                                  Typeuri
                                                                  Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
                                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                  Summarytrue
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  8. Encounter.language
                                                                  Definition

                                                                  The base language in which the resource is written.

                                                                  ShortLanguage of the resource content
                                                                  Comments

                                                                  Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

                                                                  Control0..1
                                                                  BindingThe codes SHOULD be taken from CommonLanguages
                                                                  (preferred to http://hl7.org/fhir/ValueSet/languages|4.0.1)

                                                                  A human language.

                                                                  Additional BindingsPurpose
                                                                  AllLanguagesMax Binding
                                                                  Typecode
                                                                  Is Modifierfalse
                                                                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                  Summaryfalse
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  10. Encounter.text
                                                                  Definition

                                                                  A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

                                                                  ShortText summary of the resource, for human interpretation
                                                                  Comments

                                                                  Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

                                                                  Control0..1
                                                                  TypeNarrative
                                                                  Is Modifierfalse
                                                                  Summaryfalse
                                                                  Alternate Namesnarrative, html, xhtml, display
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  12. Encounter.contained
                                                                  Definition

                                                                  These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

                                                                  ShortContained, inline Resources
                                                                  Comments

                                                                  This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

                                                                  Control0..*
                                                                  TypeResource
                                                                  Is Modifierfalse
                                                                  Summaryfalse
                                                                  Alternate Namesinline resources, anonymous resources, contained resources
                                                                  14. Encounter.extension
                                                                  Definition

                                                                  An Extension

                                                                  ShortExtension
                                                                  Control0..*
                                                                  TypeExtension
                                                                  Is Modifierfalse
                                                                  Summaryfalse
                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                  SlicingThis element introduces a set of slices on Encounter.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                  • value @ url
                                                                  • Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them

                                                                    16. Encounter.extension:isPoliceCase
                                                                    Slice NameisPoliceCase
                                                                    Definition

                                                                    Indicates whether the encounter is taking place as part of a medico-legal (police) case, such as assault, accident, poisoning, or another incident requiring police involvement, as recorded in Nepal.

                                                                    ShortWhether this encounter is part of a medico-legal (police) case
                                                                    Control0..1
                                                                    This element is affected by the following invariants: ele-1
                                                                    TypeExtension(Is Police Case) (Extension Type: boolean)
                                                                    Is Modifierfalse
                                                                    Must Supporttrue
                                                                    Obligations
                                                                      ObligationsActor
                                                                      SHALL:populate-if-knownNP Core Creator
                                                                      SHALL:handleNP Core Consumer
                                                                      SHALL:handleNP Core Server
                                                                      Summaryfalse
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                      18. Encounter.modifierExtension
                                                                      Definition

                                                                      May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                      ShortExtensions that cannot be ignored
                                                                      Comments

                                                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                      Control0..*
                                                                      TypeExtension
                                                                      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
                                                                      Summaryfalse
                                                                      Requirements

                                                                      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                      Alternate Namesextensions, user content
                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                      20. Encounter.identifier
                                                                      Definition

                                                                      Identifiers for this encounter. At least one identifier SHALL use a system URI namespaced under the assigning facility's National Health Facility Registry (NHFR) code (i.e. http://nhfr.digitalhealth.gov.np/{nhfrCode}), so encounter identifiers are globally unique without a centrally mandated visit-code system.

                                                                      ShortBusiness identifier(s) for this encounter
                                                                      NoteThis is a business identifier, not a resource identifier (see discussion)
                                                                      Control1..*
                                                                      TypeIdentifier
                                                                      Is Modifierfalse
                                                                      Must Supporttrue
                                                                      Obligations
                                                                        ObligationsActor
                                                                        SHALL:able-to-populateNP Core Creator
                                                                        SHALL:handleNP Core Consumer
                                                                        SHALL:handleNP Core Server
                                                                        Summarytrue
                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                        22. Encounter.identifier.id
                                                                        Definition

                                                                        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                        ShortUnique id for inter-element referencing
                                                                        Control0..1
                                                                        Typestring
                                                                        Is Modifierfalse
                                                                        XML FormatIn the XML format, this property is represented as an attribute.
                                                                        Summaryfalse
                                                                        24. Encounter.identifier.extension
                                                                        Definition

                                                                        May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                        ShortAdditional content defined by implementations
                                                                        Comments

                                                                        There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                        Control0..*
                                                                        TypeExtension
                                                                        Is Modifierfalse
                                                                        Summaryfalse
                                                                        Alternate Namesextensions, user content
                                                                        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                        SlicingThis element introduces a set of slices on Encounter.identifier.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                        • value @ url
                                                                        • 26. Encounter.identifier.use
                                                                          Definition

                                                                          The purpose of this identifier.

                                                                          Shortusual | official | temp | secondary | old (If known)
                                                                          Comments

                                                                          Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

                                                                          Control0..1
                                                                          BindingThe codes SHALL be taken from IdentifierUse
                                                                          (required to http://hl7.org/fhir/ValueSet/identifier-use|4.0.1)

                                                                          Identifies the purpose for this identifier, if known .

                                                                          Typecode
                                                                          Is Modifiertrue because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.
                                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                          Summarytrue
                                                                          Requirements

                                                                          Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          28. Encounter.identifier.type
                                                                          Definition

                                                                          A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

                                                                          ShortDescription of identifier
                                                                          Comments

                                                                          This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

                                                                          Control0..1
                                                                          BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codes
                                                                          (extensible to http://hl7.org/fhir/ValueSet/identifier-type|4.0.1)

                                                                          A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

                                                                          TypeCodeableConcept
                                                                          Is Modifierfalse
                                                                          Summarytrue
                                                                          Requirements

                                                                          Allows users to make use of identifiers when the identifier system is not known.

                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          30. Encounter.identifier.system
                                                                          Definition

                                                                          The namespace for the identifier value. At least one of an encounter's identifiers SHALL use a system formed from the assigning facility's NHFR code (http://nhfr.digitalhealth.gov.np/{nhfrCode}, as shown in the examples below); other identifier systems, such as a local EMR namespace, are also permitted.

                                                                          ShortNamespace URI for the identifier value
                                                                          Comments

                                                                          Identifier.system is always case sensitive.

                                                                          Control1..1
                                                                          Typeuri
                                                                          Is Modifierfalse
                                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                          Summarytrue
                                                                          Requirements

                                                                          There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

                                                                          ExampleGeneral: http://www.acme.com/identifiers/patient
                                                                          Facility with NHFR code 00XX: http://nhfr.digitalhealth.gov.np/00XX
                                                                          Facility with NHFR code 12345: http://nhfr.digitalhealth.gov.np/12345
                                                                          Facility with NHFR code 98765: http://nhfr.digitalhealth.gov.np/98765
                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          32. Encounter.identifier.value
                                                                          Definition

                                                                          The portion of the identifier typically relevant to the user and which is unique within the context of the system.

                                                                          ShortLocal visit or encounter number assigned by the facility
                                                                          Comments

                                                                          If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

                                                                          Control1..1
                                                                          Typestring
                                                                          Is Modifierfalse
                                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                          Summarytrue
                                                                          ExampleGeneral: 123456
                                                                          Facility-assigned encounter number: VISIT-2026-0000123
                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          34. Encounter.identifier.period
                                                                          Definition

                                                                          Time period during which identifier is/was valid for use.

                                                                          ShortTime period when id is/was valid for use
                                                                          Control0..1
                                                                          TypePeriod
                                                                          Is Modifierfalse
                                                                          Summarytrue
                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          36. Encounter.identifier.assigner
                                                                          Definition

                                                                          Organization that issued/manages the identifier.

                                                                          ShortOrganization that issued id (may be just text)
                                                                          Comments

                                                                          The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

                                                                          Control0..1
                                                                          TypeReference(Organization)
                                                                          Is Modifierfalse
                                                                          Summarytrue
                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                          38. Encounter.status
                                                                          Definition

                                                                          planned | arrived | triaged | in-progress | onleave | finished | cancelled +.

                                                                          Shortplanned | arrived | triaged | in-progress | onleave | finished | cancelled +
                                                                          Comments

                                                                          Note that internal business rules will determine the appropriate transitions that may occur between statuses (and also classes).

                                                                          Control1..1
                                                                          BindingThe codes SHALL be taken from EncounterStatus
                                                                          (required to http://hl7.org/fhir/ValueSet/encounter-status|4.0.1)

                                                                          Current state of the encounter.

                                                                          Typecode
                                                                          Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
                                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                          Must Supporttrue
                                                                          Obligations
                                                                            ObligationsActor
                                                                            SHALL:able-to-populateNP Core Creator
                                                                            SHALL:handleNP Core Consumer
                                                                            SHALL:handleNP Core Server
                                                                            Summarytrue
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            40. Encounter.statusHistory
                                                                            Definition

                                                                            The status history permits the encounter resource to contain the status history without needing to read through the historical versions of the resource, or even have the server store them.

                                                                            ShortList of past encounter statuses
                                                                            Comments

                                                                            The current status is always found in the current version of the resource, not the status history.

                                                                            Control0..*
                                                                            TypeBackboneElement
                                                                            Is Modifierfalse
                                                                            Summaryfalse
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            42. Encounter.statusHistory.id
                                                                            Definition

                                                                            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                            ShortUnique id for inter-element referencing
                                                                            Control0..1
                                                                            Typestring
                                                                            Is Modifierfalse
                                                                            XML FormatIn the XML format, this property is represented as an attribute.
                                                                            Summaryfalse
                                                                            44. Encounter.statusHistory.extension
                                                                            Definition

                                                                            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                            ShortAdditional content defined by implementations
                                                                            Comments

                                                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                            Control0..*
                                                                            TypeExtension
                                                                            Is Modifierfalse
                                                                            Summaryfalse
                                                                            Alternate Namesextensions, user content
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                            46. Encounter.statusHistory.modifierExtension
                                                                            Definition

                                                                            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                            ShortExtensions that cannot be ignored even if unrecognized
                                                                            Comments

                                                                            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                            Control0..*
                                                                            TypeExtension
                                                                            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                            Summarytrue
                                                                            Requirements

                                                                            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                            Alternate Namesextensions, user content, modifiers
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                            48. Encounter.statusHistory.status
                                                                            Definition

                                                                            planned | arrived | triaged | in-progress | onleave | finished | cancelled +.

                                                                            Shortplanned | arrived | triaged | in-progress | onleave | finished | cancelled +
                                                                            Control1..1
                                                                            BindingThe codes SHALL be taken from EncounterStatus
                                                                            (required to http://hl7.org/fhir/ValueSet/encounter-status|4.0.1)

                                                                            Current state of the encounter.

                                                                            Typecode
                                                                            Is Modifierfalse
                                                                            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                            Summaryfalse
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            50. Encounter.statusHistory.period
                                                                            Definition

                                                                            The time that the episode was in the specified status.

                                                                            ShortThe time that the episode was in the specified status
                                                                            Control1..1
                                                                            TypePeriod
                                                                            Is Modifierfalse
                                                                            Summaryfalse
                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                            52. Encounter.class
                                                                            Definition

                                                                            Concepts representing classification of patient encounter such as ambulatory (outpatient), inpatient, emergency, home health or others due to local variations.

                                                                            ShortClassification of patient encounter
                                                                            Control1..1
                                                                            BindingUnless not suitable, these codes SHALL be taken from ActEncounterCode
                                                                            (extensible to http://terminology.hl7.org/ValueSet/v3-ActEncounterCode)

                                                                            Classification of the encounter.

                                                                            TypeCoding
                                                                            Is Modifierfalse
                                                                            Must Supporttrue
                                                                            Obligations
                                                                              ObligationsActor
                                                                              SHALL:able-to-populateNP Core Creator
                                                                              SHALL:handleNP Core Consumer
                                                                              SHALL:handleNP Core Server
                                                                              Summarytrue
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              54. Encounter.classHistory
                                                                              Definition

                                                                              The class history permits the tracking of the encounters transitions without needing to go through the resource history. This would be used for a case where an admission starts of as an emergency encounter, then transitions into an inpatient scenario. Doing this and not restarting a new encounter ensures that any lab/diagnostic results can more easily follow the patient and not require re-processing and not get lost or cancelled during a kind of discharge from emergency to inpatient.

                                                                              ShortList of past encounter classes
                                                                              Control0..*
                                                                              TypeBackboneElement
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              56. Encounter.classHistory.id
                                                                              Definition

                                                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                              ShortUnique id for inter-element referencing
                                                                              Control0..1
                                                                              Typestring
                                                                              Is Modifierfalse
                                                                              XML FormatIn the XML format, this property is represented as an attribute.
                                                                              Summaryfalse
                                                                              58. Encounter.classHistory.extension
                                                                              Definition

                                                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                              ShortAdditional content defined by implementations
                                                                              Comments

                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                              Control0..*
                                                                              TypeExtension
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Alternate Namesextensions, user content
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                              60. Encounter.classHistory.modifierExtension
                                                                              Definition

                                                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                              ShortExtensions that cannot be ignored even if unrecognized
                                                                              Comments

                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                              Control0..*
                                                                              TypeExtension
                                                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                              Summarytrue
                                                                              Requirements

                                                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                              Alternate Namesextensions, user content, modifiers
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                              62. Encounter.classHistory.class
                                                                              Definition

                                                                              inpatient | outpatient | ambulatory | emergency +.

                                                                              Shortinpatient | outpatient | ambulatory | emergency +
                                                                              Control1..1
                                                                              BindingUnless not suitable, these codes SHALL be taken from ActEncounterCode
                                                                              (extensible to http://terminology.hl7.org/ValueSet/v3-ActEncounterCode)

                                                                              Classification of the encounter.

                                                                              TypeCoding
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              64. Encounter.classHistory.period
                                                                              Definition

                                                                              The time that the episode was in the specified class.

                                                                              ShortThe time that the episode was in the specified class
                                                                              Control1..1
                                                                              TypePeriod
                                                                              Is Modifierfalse
                                                                              Summaryfalse
                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                              66. Encounter.type
                                                                              Definition

                                                                              Specific type of encounter (e.g. e-mail consultation, surgical day-care, skilled nursing, rehabilitation).

                                                                              ShortSpecific type of encounter
                                                                              Comments

                                                                              Since there are many ways to further classify encounters, this element is 0..*.

                                                                              Control0..*
                                                                              BindingThe codes SHOULD be taken from Encounter Type ValueSet
                                                                              (preferred to http://fhir.digitalhealth.gov.np/core/ValueSet/encounter-type-vs)
                                                                              TypeCodeableConcept
                                                                              Is Modifierfalse
                                                                              Must Supporttrue
                                                                              Obligations
                                                                                ObligationsActor
                                                                                SHOULD:able-to-populateNP Core Creator
                                                                                SHALL:handleNP Core Consumer
                                                                                SHALL:handleNP Core Server
                                                                                Summarytrue
                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                68. Encounter.serviceType
                                                                                Definition

                                                                                Broad categorization of the service that is to be provided (e.g. cardiology).

                                                                                ShortSpecific type of service
                                                                                Control0..1
                                                                                BindingFor example codes, see ServiceType
                                                                                (example to http://hl7.org/fhir/ValueSet/service-type|4.0.1)

                                                                                Broad categorization of the service that is to be provided.

                                                                                TypeCodeableConcept
                                                                                Is Modifierfalse
                                                                                Summarytrue
                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                70. Encounter.priority
                                                                                Definition

                                                                                Indicates the urgency of the encounter.

                                                                                ShortIndicates the urgency of the encounter
                                                                                Control0..1
                                                                                BindingFor example codes, see ActPriority
                                                                                (example to http://terminology.hl7.org/ValueSet/v3-ActPriority)

                                                                                Indicates the urgency of the encounter.

                                                                                TypeCodeableConcept
                                                                                Is Modifierfalse
                                                                                Summaryfalse
                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                72. Encounter.subject
                                                                                Definition

                                                                                The patient or group present at the encounter.

                                                                                ShortThe patient or group present at the encounter
                                                                                Comments

                                                                                While the encounter is always about the patient, the patient might not actually be known in all contexts of use, and there may be a group of patients that could be anonymous (such as in a group therapy for Alcoholics Anonymous - where the recording of the encounter could be used for billing on the number of people/staff and not important to the context of the specific patients) or alternately in veterinary care a herd of sheep receiving treatment (where the animals are not individually tracked).

                                                                                Control1..1
                                                                                TypeReference(NP Core Patient, Group)
                                                                                Is Modifierfalse
                                                                                Must Supporttrue
                                                                                Must Support TypesNo must-support rules about the choice of types/profiles
                                                                                Obligations
                                                                                  ObligationsActor
                                                                                  SHALL:able-to-populateNP Core Creator
                                                                                  SHALL:handleNP Core Consumer
                                                                                  SHALL:handleNP Core Server
                                                                                  Summarytrue
                                                                                  Alternate Namespatient
                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                  74. Encounter.episodeOfCare
                                                                                  Definition

                                                                                  Where a specific encounter should be classified as a part of a specific episode(s) of care this field should be used. This association can facilitate grouping of related encounters together for a specific purpose, such as government reporting, issue tracking, association via a common problem. The association is recorded on the encounter as these are typically created after the episode of care and grouped on entry rather than editing the episode of care to append another encounter to it (the episode of care could span years).

                                                                                  ShortEpisode(s) of care that this encounter should be recorded against
                                                                                  Control0..*
                                                                                  TypeReference(EpisodeOfCare)
                                                                                  Is Modifierfalse
                                                                                  Summarytrue
                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                  76. Encounter.basedOn
                                                                                  Definition

                                                                                  The request this encounter satisfies (e.g. incoming referral or procedure request).

                                                                                  ShortThe ServiceRequest that initiated this encounter
                                                                                  Control0..*
                                                                                  TypeReference(ServiceRequest)
                                                                                  Is Modifierfalse
                                                                                  Summaryfalse
                                                                                  Alternate NamesincomingReferral
                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                  78. Encounter.participant
                                                                                  Definition

                                                                                  The list of people responsible for providing the service.

                                                                                  ShortList of participants involved in the encounter
                                                                                  Control0..*
                                                                                  TypeBackboneElement
                                                                                  Is Modifierfalse
                                                                                  Must Supporttrue
                                                                                  Obligations
                                                                                    ObligationsActor
                                                                                    SHOULD:able-to-populateNP Core Creator
                                                                                    SHALL:handleNP Core Consumer
                                                                                    SHALL:handleNP Core Server
                                                                                    Summarytrue
                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    80. Encounter.participant.id
                                                                                    Definition

                                                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                                    ShortUnique id for inter-element referencing
                                                                                    Control0..1
                                                                                    Typestring
                                                                                    Is Modifierfalse
                                                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                                                    Summaryfalse
                                                                                    82. Encounter.participant.extension
                                                                                    Definition

                                                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                                    ShortAdditional content defined by implementations
                                                                                    Comments

                                                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                    Control0..*
                                                                                    TypeExtension
                                                                                    Is Modifierfalse
                                                                                    Summaryfalse
                                                                                    Alternate Namesextensions, user content
                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                    84. Encounter.participant.modifierExtension
                                                                                    Definition

                                                                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                                    ShortExtensions that cannot be ignored even if unrecognized
                                                                                    Comments

                                                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                    Control0..*
                                                                                    TypeExtension
                                                                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                                    Summarytrue
                                                                                    Requirements

                                                                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                                    Alternate Namesextensions, user content, modifiers
                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                    86. Encounter.participant.type
                                                                                    Definition

                                                                                    Role of participant in encounter.

                                                                                    ShortRole of participant in encounter
                                                                                    Comments

                                                                                    The participant type indicates how an individual participates in an encounter. It includes non-practitioner participants, and for practitioners this is to describe the action type in the context of this encounter (e.g. Admitting Dr, Attending Dr, Translator, Consulting Dr). This is different to the practitioner roles which are functional roles, derived from terms of employment, education, licensing, etc.

                                                                                    Control0..*
                                                                                    BindingUnless not suitable, these codes SHALL be taken from ParticipantType
                                                                                    (extensible to http://hl7.org/fhir/ValueSet/encounter-participant-type|4.0.1)

                                                                                    Role of participant in encounter.

                                                                                    TypeCodeableConcept
                                                                                    Is Modifierfalse
                                                                                    Summarytrue
                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    88. Encounter.participant.period
                                                                                    Definition

                                                                                    The period of time that the specified participant participated in the encounter. These can overlap or be sub-sets of the overall encounter's period.

                                                                                    ShortPeriod of time during the encounter that the participant participated
                                                                                    Control0..1
                                                                                    TypePeriod
                                                                                    Is Modifierfalse
                                                                                    Summaryfalse
                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    90. Encounter.participant.individual
                                                                                    Definition

                                                                                    Persons involved in the encounter other than the patient.

                                                                                    ShortPersons involved in the encounter other than the patient
                                                                                    Control0..1
                                                                                    TypeReference(NP Core Practitioner, NP Core RelatedPerson, NP Core PractitionerRole)
                                                                                    Is Modifierfalse
                                                                                    Summarytrue
                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    92. Encounter.appointment
                                                                                    Definition

                                                                                    The appointment that scheduled this encounter.

                                                                                    ShortThe appointment that scheduled this encounter
                                                                                    Control0..*
                                                                                    TypeReference(Appointment)
                                                                                    Is Modifierfalse
                                                                                    Summarytrue
                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                    94. Encounter.period
                                                                                    Definition

                                                                                    The start and end time of the encounter.

                                                                                    ShortThe start and end time of the encounter
                                                                                    Comments

                                                                                    If not (yet) known, the end of the Period may be omitted.

                                                                                    Control0..1
                                                                                    TypePeriod
                                                                                    Is Modifierfalse
                                                                                    Must Supporttrue
                                                                                    Obligations
                                                                                      ObligationsActor
                                                                                      SHALL:able-to-populateNP Core Creator
                                                                                      SHALL:handleNP Core Consumer
                                                                                      SHALL:handleNP Core Server
                                                                                      Summaryfalse
                                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                      96. Encounter.period.id
                                                                                      Definition

                                                                                      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                                      ShortUnique id for inter-element referencing
                                                                                      Control0..1
                                                                                      Typestring
                                                                                      Is Modifierfalse
                                                                                      XML FormatIn the XML format, this property is represented as an attribute.
                                                                                      Summaryfalse
                                                                                      98. Encounter.period.extension
                                                                                      Definition

                                                                                      May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                                      ShortAdditional content defined by implementations
                                                                                      Comments

                                                                                      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                      Control0..*
                                                                                      TypeExtension
                                                                                      Is Modifierfalse
                                                                                      Summaryfalse
                                                                                      Alternate Namesextensions, user content
                                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                      SlicingThis element introduces a set of slices on Encounter.period.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                                                                                      • value @ url
                                                                                      • 100. Encounter.period.start
                                                                                        Definition

                                                                                        The start of the period. The boundary is inclusive.

                                                                                        ShortStarting time with inclusive boundary
                                                                                        Comments

                                                                                        If the low element is missing, the meaning is that the low boundary is not known.

                                                                                        Control0..1
                                                                                        This element is affected by the following invariants: per-1
                                                                                        TypedateTime
                                                                                        Is Modifierfalse
                                                                                        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                        Must Supporttrue
                                                                                        Obligations
                                                                                          ObligationsActor
                                                                                          SHALL:able-to-populateNP Core Creator
                                                                                          SHALL:handleNP Core Consumer
                                                                                          SHALL:handleNP Core Server
                                                                                          Summarytrue
                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                          102. Encounter.period.end
                                                                                          Definition

                                                                                          The end of the period. If the end of the period is missing, it means no end was known or planned at the time the instance was created. The start may be in the past, and the end date in the future, which means that period is expected/planned to end at that time.

                                                                                          ShortEnd time with inclusive boundary, if not ongoing
                                                                                          Comments

                                                                                          The high value includes any matching date/time. i.e. 2012-02-03T10:00:00 is in a period that has an end value of 2012-02-03.

                                                                                          Control0..1
                                                                                          This element is affected by the following invariants: per-1
                                                                                          TypedateTime
                                                                                          Is Modifierfalse
                                                                                          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                          Summarytrue
                                                                                          Meaning if MissingIf the end of the period is missing, it means that the period is ongoing
                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                          104. Encounter.length
                                                                                          Definition

                                                                                          Quantity of time the encounter lasted. This excludes the time during leaves of absence.

                                                                                          ShortQuantity of time the encounter lasted (less time absent)
                                                                                          Comments

                                                                                          May differ from the time the Encounter.period lasted because of leave of absence.

                                                                                          Control0..1
                                                                                          TypeDuration
                                                                                          Is Modifierfalse
                                                                                          Summaryfalse
                                                                                          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                          106. Encounter.reasonCode
                                                                                          Definition

                                                                                          Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis.

                                                                                          ShortCoded reason the encounter takes place
                                                                                          Comments

                                                                                          For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis).

                                                                                          Control0..*
                                                                                          BindingThe codes SHOULD be taken from EncounterReasonCodes
                                                                                          (preferred to http://hl7.org/fhir/ValueSet/encounter-reason|4.0.1)

                                                                                          Reason why the encounter takes place.

                                                                                          TypeCodeableConcept
                                                                                          Is Modifierfalse
                                                                                          Must Supporttrue
                                                                                          Obligations
                                                                                            ObligationsActor
                                                                                            SHALL:populate-if-knownNP Core Creator
                                                                                            SHALL:handleNP Core Consumer
                                                                                            SHALL:handleNP Core Server
                                                                                            Summarytrue
                                                                                            Alternate NamesIndication, Admission diagnosis
                                                                                            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                            108. Encounter.reasonReference
                                                                                            Definition

                                                                                            Reason the encounter takes place, expressed as a code. For admissions, this can be used for a coded admission diagnosis.

                                                                                            ShortReason the encounter takes place (reference)
                                                                                            Comments

                                                                                            For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis).

                                                                                            Control0..*
                                                                                            TypeReference(NP Core Condition, NP Core Procedure, NP Core Observation, ImmunizationRecommendation)
                                                                                            Is Modifierfalse
                                                                                            Must Supporttrue
                                                                                            Must Support TypesNo must-support rules about the choice of types/profiles
                                                                                            Obligations
                                                                                              ObligationsActor
                                                                                              SHALL:populate-if-knownNP Core Creator
                                                                                              SHALL:handleNP Core Consumer
                                                                                              SHALL:handleNP Core Server
                                                                                              Summarytrue
                                                                                              Alternate NamesIndication, Admission diagnosis
                                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                              110. Encounter.diagnosis
                                                                                              Definition

                                                                                              The list of diagnosis relevant to this encounter.

                                                                                              ShortThe list of diagnosis relevant to this encounter
                                                                                              Control0..*
                                                                                              TypeBackboneElement
                                                                                              Is Modifierfalse
                                                                                              Summarytrue
                                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                              112. Encounter.diagnosis.id
                                                                                              Definition

                                                                                              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                                              ShortUnique id for inter-element referencing
                                                                                              Control0..1
                                                                                              Typestring
                                                                                              Is Modifierfalse
                                                                                              XML FormatIn the XML format, this property is represented as an attribute.
                                                                                              Summaryfalse
                                                                                              114. Encounter.diagnosis.extension
                                                                                              Definition

                                                                                              May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                                              ShortAdditional content defined by implementations
                                                                                              Comments

                                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                              Control0..*
                                                                                              TypeExtension
                                                                                              Is Modifierfalse
                                                                                              Summaryfalse
                                                                                              Alternate Namesextensions, user content
                                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                              116. Encounter.diagnosis.modifierExtension
                                                                                              Definition

                                                                                              May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                                              Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                                              ShortExtensions that cannot be ignored even if unrecognized
                                                                                              Comments

                                                                                              There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                              Control0..*
                                                                                              TypeExtension
                                                                                              Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                                              Summarytrue
                                                                                              Requirements

                                                                                              Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                                              Alternate Namesextensions, user content, modifiers
                                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                              118. Encounter.diagnosis.condition
                                                                                              Definition

                                                                                              Reason the encounter takes place, as specified using information from another resource. For admissions, this is the admission diagnosis. The indication will typically be a Condition (with other resources referenced in the evidence.detail), or a Procedure.

                                                                                              ShortThe diagnosis or procedure relevant to the encounter
                                                                                              Comments

                                                                                              For systems that need to know which was the primary diagnosis, these will be marked with the standard extension primaryDiagnosis (which is a sequence value rather than a flag, 1 = primary diagnosis).

                                                                                              Control1..1
                                                                                              TypeReference(Condition, Procedure)
                                                                                              Is Modifierfalse
                                                                                              Summarytrue
                                                                                              Alternate NamesAdmission diagnosis, discharge diagnosis, indication
                                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                              120. Encounter.diagnosis.use
                                                                                              Definition

                                                                                              Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …).

                                                                                              ShortRole that this diagnosis has within the encounter (e.g. admission, billing, discharge …)
                                                                                              Control0..1
                                                                                              BindingThe codes SHOULD be taken from DiagnosisRole
                                                                                              (preferred to http://hl7.org/fhir/ValueSet/diagnosis-role|4.0.1)

                                                                                              The type of diagnosis this condition represents.

                                                                                              TypeCodeableConcept
                                                                                              Is Modifierfalse
                                                                                              Summaryfalse
                                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                              122. Encounter.diagnosis.rank
                                                                                              Definition

                                                                                              Ranking of the diagnosis (for each role type).

                                                                                              ShortRanking of the diagnosis (for each role type)
                                                                                              Control0..1
                                                                                              TypepositiveInt
                                                                                              Is Modifierfalse
                                                                                              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                              Summaryfalse
                                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                              124. Encounter.account
                                                                                              Definition

                                                                                              The set of accounts that may be used for billing for this Encounter.

                                                                                              ShortThe set of accounts that may be used for billing for this Encounter
                                                                                              Comments

                                                                                              The billing system may choose to allocate billable items associated with the Encounter to different referenced Accounts based on internal business rules.

                                                                                              Control0..*
                                                                                              TypeReference(Account)
                                                                                              Is Modifierfalse
                                                                                              Summaryfalse
                                                                                              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                              126. Encounter.hospitalization
                                                                                              Definition

                                                                                              Details about the admission to a healthcare service.

                                                                                              ShortDetails about the admission to a healthcare service
                                                                                              Comments

                                                                                              An Encounter may cover more than just the inpatient stay. Contexts such as outpatients, community clinics, and aged care facilities are also included.

                                                                                              The duration recorded in the period of this encounter covers the entire scope of this hospitalization record.

                                                                                              Control0..1
                                                                                              TypeBackboneElement
                                                                                              Is Modifierfalse
                                                                                              Must Supporttrue
                                                                                              Obligations
                                                                                                ObligationsActor
                                                                                                MAY:able-to-populateNP Core Creator
                                                                                                SHALL:handleNP Core Consumer
                                                                                                SHALL:handleNP Core Server
                                                                                                Summaryfalse
                                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                128. Encounter.hospitalization.id
                                                                                                Definition

                                                                                                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                                                ShortUnique id for inter-element referencing
                                                                                                Control0..1
                                                                                                Typestring
                                                                                                Is Modifierfalse
                                                                                                XML FormatIn the XML format, this property is represented as an attribute.
                                                                                                Summaryfalse
                                                                                                130. Encounter.hospitalization.extension
                                                                                                Definition

                                                                                                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                                                ShortAdditional content defined by implementations
                                                                                                Comments

                                                                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                                Control0..*
                                                                                                TypeExtension
                                                                                                Is Modifierfalse
                                                                                                Summaryfalse
                                                                                                Alternate Namesextensions, user content
                                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                                132. Encounter.hospitalization.modifierExtension
                                                                                                Definition

                                                                                                May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                                                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                                                ShortExtensions that cannot be ignored even if unrecognized
                                                                                                Comments

                                                                                                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                                Control0..*
                                                                                                TypeExtension
                                                                                                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                                                Summarytrue
                                                                                                Requirements

                                                                                                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                                                Alternate Namesextensions, user content, modifiers
                                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                                134. Encounter.hospitalization.preAdmissionIdentifier
                                                                                                Definition

                                                                                                Pre-admission identifier.

                                                                                                ShortPre-admission identifier
                                                                                                Control0..1
                                                                                                TypeIdentifier
                                                                                                Is Modifierfalse
                                                                                                Summaryfalse
                                                                                                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                136. Encounter.hospitalization.origin
                                                                                                Definition

                                                                                                The location/organization from which the patient came before admission.

                                                                                                ShortThe location/organization from which the patient came before admission
                                                                                                Control0..1
                                                                                                TypeReference(NP Core Health Facility, NP Core Organization, NP Core Location)
                                                                                                Is Modifierfalse
                                                                                                Must Supporttrue
                                                                                                Must Support TypesNo must-support rules about the choice of types/profiles
                                                                                                Obligations
                                                                                                  ObligationsActor
                                                                                                  MAY:able-to-populateNP Core Creator
                                                                                                  SHALL:handleNP Core Consumer
                                                                                                  SHALL:handleNP Core Server
                                                                                                  Summaryfalse
                                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                  138. Encounter.hospitalization.admitSource
                                                                                                  Definition

                                                                                                  From where patient was admitted (physician referral, transfer).

                                                                                                  ShortFrom where patient was admitted (physician referral, transfer)
                                                                                                  Control0..1
                                                                                                  BindingThe codes SHOULD be taken from AdmitSource
                                                                                                  (preferred to http://hl7.org/fhir/ValueSet/encounter-admit-source|4.0.1)

                                                                                                  From where the patient was admitted.

                                                                                                  TypeCodeableConcept
                                                                                                  Is Modifierfalse
                                                                                                  Summaryfalse
                                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                  140. Encounter.hospitalization.reAdmission
                                                                                                  Definition

                                                                                                  Whether this hospitalization is a readmission and why if known.

                                                                                                  ShortThe type of hospital re-admission that has occurred (if any). If the value is absent, then this is not identified as a readmission
                                                                                                  Control0..1
                                                                                                  BindingFor example codes, see hl7VS-re-admissionIndicator
                                                                                                  (example to http://terminology.hl7.org/ValueSet/v2-0092)

                                                                                                  The reason for re-admission of this hospitalization encounter.

                                                                                                  TypeCodeableConcept
                                                                                                  Is Modifierfalse
                                                                                                  Summaryfalse
                                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                  142. Encounter.hospitalization.dietPreference
                                                                                                  Definition

                                                                                                  Diet preferences reported by the patient.

                                                                                                  ShortDiet preferences reported by the patient
                                                                                                  Comments

                                                                                                  For example, a patient may request both a dairy-free and nut-free diet preference (not mutually exclusive).

                                                                                                  Control0..*
                                                                                                  BindingFor example codes, see Diet
                                                                                                  (example to http://hl7.org/fhir/ValueSet/encounter-diet|4.0.1)

                                                                                                  Medical, cultural or ethical food preferences to help with catering requirements.

                                                                                                  TypeCodeableConcept
                                                                                                  Is Modifierfalse
                                                                                                  Summaryfalse
                                                                                                  Requirements

                                                                                                  Used to track patient's diet restrictions and/or preference. For a complete description of the nutrition needs of a patient during their stay, one should use the nutritionOrder resource which links to Encounter.

                                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                  144. Encounter.hospitalization.specialCourtesy
                                                                                                  Definition

                                                                                                  Special courtesies (VIP, board member).

                                                                                                  ShortSpecial courtesies (VIP, board member)
                                                                                                  Control0..*
                                                                                                  BindingThe codes SHOULD be taken from SpecialCourtesy
                                                                                                  (preferred to http://hl7.org/fhir/ValueSet/encounter-special-courtesy|4.0.1)

                                                                                                  Special courtesies.

                                                                                                  TypeCodeableConcept
                                                                                                  Is Modifierfalse
                                                                                                  Summaryfalse
                                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                  146. Encounter.hospitalization.specialArrangement
                                                                                                  Definition

                                                                                                  Any special requests that have been made for this hospitalization encounter, such as the provision of specific equipment or other things.

                                                                                                  ShortWheelchair, translator, stretcher, etc.
                                                                                                  Control0..*
                                                                                                  BindingThe codes SHOULD be taken from SpecialArrangements
                                                                                                  (preferred to http://hl7.org/fhir/ValueSet/encounter-special-arrangements|4.0.1)

                                                                                                  Special arrangements.

                                                                                                  TypeCodeableConcept
                                                                                                  Is Modifierfalse
                                                                                                  Summaryfalse
                                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                  148. Encounter.hospitalization.destination
                                                                                                  Definition

                                                                                                  Location/organization to which the patient is discharged.

                                                                                                  ShortLocation/organization to which the patient is discharged
                                                                                                  Control0..1
                                                                                                  TypeReference(Location, Organization)
                                                                                                  Is Modifierfalse
                                                                                                  Summaryfalse
                                                                                                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                  150. Encounter.hospitalization.dischargeDisposition
                                                                                                  Definition

                                                                                                  Category or kind of location after discharge.

                                                                                                  ShortCategory or kind of location after discharge
                                                                                                  Control0..1
                                                                                                  BindingFor example codes, see DischargeDisposition
                                                                                                  (example to http://hl7.org/fhir/ValueSet/encounter-discharge-disposition|4.0.1)

                                                                                                  Discharge Disposition.

                                                                                                  TypeCodeableConcept
                                                                                                  Is Modifierfalse
                                                                                                  Must Supporttrue
                                                                                                  Obligations
                                                                                                    ObligationsActor
                                                                                                    MAY:able-to-populateNP Core Creator
                                                                                                    SHALL:handleNP Core Consumer
                                                                                                    SHALL:handleNP Core Server
                                                                                                    Summaryfalse
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    152. Encounter.location
                                                                                                    Definition

                                                                                                    List of locations where the patient has been during this encounter.

                                                                                                    ShortList of locations where the patient has been
                                                                                                    Comments

                                                                                                    Virtual encounters can be recorded in the Encounter by specifying a location reference to a location of type "kind" such as "client's home" and an encounter.class = "virtual".

                                                                                                    Control0..*
                                                                                                    TypeBackboneElement
                                                                                                    Is Modifierfalse
                                                                                                    Summaryfalse
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    154. Encounter.location.id
                                                                                                    Definition

                                                                                                    Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                                                                                                    ShortUnique id for inter-element referencing
                                                                                                    Control0..1
                                                                                                    Typestring
                                                                                                    Is Modifierfalse
                                                                                                    XML FormatIn the XML format, this property is represented as an attribute.
                                                                                                    Summaryfalse
                                                                                                    156. Encounter.location.extension
                                                                                                    Definition

                                                                                                    May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                                                                                                    ShortAdditional content defined by implementations
                                                                                                    Comments

                                                                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                                    Control0..*
                                                                                                    TypeExtension
                                                                                                    Is Modifierfalse
                                                                                                    Summaryfalse
                                                                                                    Alternate Namesextensions, user content
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                                    158. Encounter.location.modifierExtension
                                                                                                    Definition

                                                                                                    May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                                                                                                    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                                                                                                    ShortExtensions that cannot be ignored even if unrecognized
                                                                                                    Comments

                                                                                                    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                                                                                                    Control0..*
                                                                                                    TypeExtension
                                                                                                    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                                                                                                    Summarytrue
                                                                                                    Requirements

                                                                                                    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                                                                                                    Alternate Namesextensions, user content, modifiers
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                                                                                                    160. Encounter.location.location
                                                                                                    Definition

                                                                                                    The location where the encounter takes place.

                                                                                                    ShortLocation the encounter takes place
                                                                                                    Control1..1
                                                                                                    TypeReference(Location)
                                                                                                    Is Modifierfalse
                                                                                                    Summaryfalse
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    162. Encounter.location.status
                                                                                                    Definition

                                                                                                    The status of the participants' presence at the specified location during the period specified. If the participant is no longer at the location, then the period will have an end date/time.

                                                                                                    Shortplanned | active | reserved | completed
                                                                                                    Comments

                                                                                                    When the patient is no longer active at a location, then the period end date is entered, and the status may be changed to completed.

                                                                                                    Control0..1
                                                                                                    BindingThe codes SHALL be taken from EncounterLocationStatus
                                                                                                    (required to http://hl7.org/fhir/ValueSet/encounter-location-status|4.0.1)

                                                                                                    The status of the location.

                                                                                                    Typecode
                                                                                                    Is Modifierfalse
                                                                                                    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                                                                                                    Summaryfalse
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    164. Encounter.location.physicalType
                                                                                                    Definition

                                                                                                    This will be used to specify the required levels (bed/ward/room/etc.) desired to be recorded to simplify either messaging or query.

                                                                                                    ShortThe physical type of the location (usually the level in the location hierachy - bed room ward etc.)
                                                                                                    Comments

                                                                                                    This information is de-normalized from the Location resource to support the easier understanding of the encounter resource and processing in messaging or query.

                                                                                                    There may be many levels in the hierachy, and this may only pic specific levels that are required for a specific usage scenario.

                                                                                                    Control0..1
                                                                                                    BindingFor example codes, see LocationType
                                                                                                    (example to http://hl7.org/fhir/ValueSet/location-physical-type|4.0.1)

                                                                                                    Physical form of the location.

                                                                                                    TypeCodeableConcept
                                                                                                    Is Modifierfalse
                                                                                                    Summaryfalse
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    166. Encounter.location.period
                                                                                                    Definition

                                                                                                    Time period during which the patient was present at the location.

                                                                                                    ShortTime period during which the patient was present at the location
                                                                                                    Control0..1
                                                                                                    TypePeriod
                                                                                                    Is Modifierfalse
                                                                                                    Summaryfalse
                                                                                                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                    168. Encounter.serviceProvider
                                                                                                    Definition

                                                                                                    The organization that is primarily responsible for this Encounter's services. This MAY be the same as the organization on the Patient record, however it could be different, such as if the actor performing the services was from an external organization (which may be billed seperately) for an external consultation. Refer to the example bundle showing an abbreviated set of Encounters for a colonoscopy.

                                                                                                    ShortThe organization (facility) responsible for this encounter
                                                                                                    Control0..1
                                                                                                    TypeReference(NP Core Health Facility, NP Core Organization)
                                                                                                    Is Modifierfalse
                                                                                                    Must Supporttrue
                                                                                                    Must Support TypesNo must-support rules about the choice of types/profiles
                                                                                                    Obligations
                                                                                                      ObligationsActor
                                                                                                      SHALL:populate-if-knownNP Core Creator
                                                                                                      SHALL:handleNP Core Consumer
                                                                                                      SHALL:handleNP Core Server
                                                                                                      Summaryfalse
                                                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                                                                                                      170. Encounter.partOf
                                                                                                      Definition

                                                                                                      Another Encounter of which this encounter is a part of (administratively or in time).

                                                                                                      ShortAnother Encounter this encounter is part of
                                                                                                      Comments

                                                                                                      This is also used for associating a child's encounter back to the mother's encounter.

                                                                                                      Refer to the Notes section in the Patient resource for further details.

                                                                                                      Control0..1
                                                                                                      TypeReference(Encounter)
                                                                                                      Is Modifierfalse
                                                                                                      Summaryfalse
                                                                                                      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))