CH Core (R4)
5.0.0-ci-build - ci-build Switzerland flag

CH Core (R4), published by HL7 Switzerland. This guide is not an authorized publication; it is the continuous build for version 5.0.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7ch/ch-core/ and changes regularly. See the Directory of published versions

Resource Profile: CHCoreEncounter - Detailed Descriptions

Active as of 2024-04-12

Definitions for the ch-core-encounter resource profile.

Guidance on how to interpret the contents of this table can be found here

0. Encounter
Definition

This is basic constraint on Encounter for use in CH Core resources.

ShortCH Core Encounter
2. Encounter.identifier
NoteThis is a business identifier, not a resource identifier (see discussion)
SlicingThis element introduces a set of slices on Encounter.identifier. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • pattern @ $this
  • 4. Encounter.identifier:VisitNumber
    Slice NameVisitNumber
    ShortVisit number (Fallnummer)
    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control0..*
    Pattern Value{
      "type" : {
        "coding" : [{
          "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
          "code" : "VN"
        }]
      }
    }
    6. Encounter.identifier:VisitNumber.system
    Control1..?
    8. Encounter.identifier:VisitNumber.value
    Control1..?
    10. Encounter.class
    Definition

    See mapping from BFS Medizinische Statistik BFS Encounter Class to FHIR mapping

    ShortAMB | IMP : See mapping from BFS Medizinische Statistik BFS Encounter Class to FHIR
    12. Encounter.priority
    ShortBFS Medizinische Statistik - Eintrittsart / Mode d’admission / Genere di ricovero
    BindingUnless not suitable, these codes SHALL be taken from BFS Medizinische Statistik - 18 1.2.V03 - Eintrittsart / Mode d’admission / Genere di ricovero
    (extensible to http://fhir.ch/ig/ch-core/ValueSet/bfs-medstats-18-admittype)
    14. Encounter.subject
    Control1..?
    TypeReference(CH Core Patient)
    16. Encounter.participant
    18. Encounter.participant.type
    BindingUnless not suitable, these codes SHALL be taken from ChCoreEncounterParticipationType
    (extensible to http://fhir.ch/ig/ch-core/ValueSet/ch-core-encounter-participation-type)
    20. Encounter.participant.individual
    TypeReference(CH Core Practitioner)
    22. Encounter.hospitalization
    24. Encounter.hospitalization.extension
    SlicingThis element introduces a set of slices on Encounter.hospitalization.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 26. Encounter.hospitalization.extension:BfsAdmitRole
      Slice NameBfsAdmitRole
      ShortBFS Medizinische Statistik - Einweisende Instanz
      Control0..1
      TypeExtension(BFS Extension Medical Statistic: Admit Role for Encounter) (Extension Type: Coding)
      28. Encounter.hospitalization.extension:accident
      Slice Nameaccident
      ShortFlag if hospitalization was due to an accident
      Control0..1
      TypeExtension(If an encounter is caused by an accident) (Complex Extension)
      30. Encounter.hospitalization.extension:readmission
      Slice Namereadmission
      ShortFlag to indicate if it is a suspected readmission
      Control0..1
      TypeExtension(Encounter, Suspected Readmission) (Extension Type: boolean)
      32. Encounter.hospitalization.extension:BfsDischargeDecision
      Slice NameBfsDischargeDecision
      ShortBFS Medizinische Statistik - Entscheid für Austritt
      Control0..1
      TypeExtension(BFS Extension Medical Statistic: Discharge Décision for Encounter) (Extension Type: Coding)
      34. Encounter.hospitalization.extension:BfsDischargeDestination
      Slice NameBfsDischargeDestination
      ShortBFS Medizinische Statistik - Aufenthalt nach Austritt
      Control0..1
      TypeExtension(BFS Extension Medical Statistic: Discharge Destination for Encounter) (Extension Type: Coding)
      36. Encounter.hospitalization.origin
      TypeReference(CH Core Location, CH Core Organization)
      38. Encounter.hospitalization.admitSource
      ShortBFS Medizinische Statistik - Aufenthaltsort vor dem Eintritt / Séjour avant l’admission / Luogo di soggiorno prima dell’ammissione
      BindingUnless not suitable, these codes SHALL be taken from BFS Medizinische Statistik - 17 1.2.V02 - Aufenthaltsort vor dem Eintritt / Séjour avant l’admission / Luogo di soggiorno prima dell’ammissione
      (extensible to http://fhir.ch/ig/ch-core/ValueSet/bfs-medstats-17-admitsource)
      40. Encounter.hospitalization.destination
      TypeReference(CH Core Location, CH Core Organization)
      42. Encounter.hospitalization.dischargeDisposition
      ShortBFS Medizinische Statistik - Behandlung nach Austritt
      BindingThe codes SHOULD be taken from BFS Medizinische Statistik - 29 1.5.V04 - Behandlung nach Austritt / Prise en charge après la sortie / Trattamento dopo l’uscita
      (preferred to http://fhir.ch/ig/ch-core/ValueSet/bfs-medstats-29-dischargeencounter)

      BFS Medizinische Statistik - Behandlung nach Austritt

      44. Encounter.location
      46. Encounter.location.location
      TypeReference(CH Core Location)
      48. Encounter.serviceProvider
      TypeReference(CH Core Organization)
      50. Encounter.partOf
      TypeReference(CH Core Encounter)

      Guidance on how to interpret the contents of this table can be found here

      0. Encounter
      Definition

      This is basic constraint on Encounter for use in CH Core resources.


      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.

      ShortCH Core EncounterAn 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())
      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.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())
      6. Encounter.identifier
      Definition

      Identifier(s) by which this encounter is known.

      ShortIdentifier(s) by which this encounter is known
      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control0..*
      TypeIdentifier
      Is Modifierfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      SlicingThis element introduces a set of slices on Encounter.identifier. The slices are unordered and Open, and can be differentiated using the following discriminators:
      • pattern @ $this
      • 8. Encounter.identifier:VisitNumber
        Slice NameVisitNumber
        Definition

        Identifier(s) by which this encounter is known.

        ShortVisit number (Fallnummer)Identifier(s) by which this encounter is known
        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control0..*
        TypeIdentifier
        Is Modifierfalse
        Summarytrue
        Pattern Value{
          "type" : {
            "coding" : [{
              "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
              "code" : "VN"
            }]
          }
        }
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        10. Encounter.identifier:VisitNumber.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()))
        12. Encounter.identifier:VisitNumber.system
        Definition

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

        ShortThe 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.

        Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        14. Encounter.identifier:VisitNumber.value
        Definition

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

        ShortThe 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
        Example<br/><b>General</b>:123456
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        16. 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
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        18. Encounter.class
        Definition

        See mapping from BFS Medizinische Statistik BFS Encounter Class to FHIR mapping


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

        ShortAMB | IMP : See mapping from BFS Medizinische Statistik BFS Encounter Class to FHIRClassification 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
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        20. Encounter.priority
        Definition

        Indicates the urgency of the encounter.

        ShortBFS Medizinische Statistik - Eintrittsart / Mode d’admission / Genere di ricoveroIndicates the urgency of the encounter
        Control0..1
        BindingUnless not suitable, these codes SHALL be taken from For example codes, see BFS Medizinische Statistik - 18 1.2.V03 - Eintrittsart / Mode d’admission / Genere di ricoverohttp://terminology.hl7.org/ValueSet/v3-ActPriority
        (extensible to http://fhir.ch/ig/ch-core/ValueSet/bfs-medstats-18-admittype)
        TypeCodeableConcept
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        22. 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(CH Core Patient, Patient, Group)
        Is Modifierfalse
        Summarytrue
        Alternate Namespatient
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        24. 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(CH Core Organization, Organization)
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        26. 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(CH Core Encounter, Encounter)
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

        Guidance on how to interpret the contents of this table can be found here

        0. Encounter
        Definition

        This is basic constraint on Encounter for use in CH Core resources.

        ShortCH Core Encounter
        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())
        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)

        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

        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.

        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())
        16. 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())
        18. Encounter.identifier
        Definition

        Identifier(s) by which this encounter is known.

        ShortIdentifier(s) by which this encounter is known
        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control0..*
        TypeIdentifier
        Is Modifierfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        SlicingThis element introduces a set of slices on Encounter.identifier. The slices are unordered and Open, and can be differentiated using the following discriminators:
        • pattern @ $this
        • 20. Encounter.identifier:VisitNumber
          Slice NameVisitNumber
          Definition

          Identifier(s) by which this encounter is known.

          ShortVisit number (Fallnummer)
          NoteThis is a business identifier, not a resource identifier (see discussion)
          Control0..*
          TypeIdentifier
          Is Modifierfalse
          Summarytrue
          Pattern Value{
            "type" : {
              "coding" : [{
                "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
                "code" : "VN"
              }]
            }
          }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          22. Encounter.identifier:VisitNumber.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:VisitNumber.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 are unordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 26. Encounter.identifier:VisitNumber.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:VisitNumber.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)

            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:VisitNumber.system
            Definition

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

            ShortThe namespace 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.

            Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            32. Encounter.identifier:VisitNumber.value
            Definition

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

            ShortThe 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.

            Control1..1
            Typestring
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Example<br/><b>General</b>:123456
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            34. Encounter.identifier:VisitNumber.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:VisitNumber.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
            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

            See mapping from BFS Medizinische Statistik BFS Encounter Class to FHIR mapping

            ShortAMB | IMP : See mapping from BFS Medizinische Statistik BFS Encounter Class to FHIR
            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
            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..*
            BindingFor example codes, see EncounterType
            (example to http://hl7.org/fhir/ValueSet/encounter-type)

            The type of encounter.

            TypeCodeableConcept
            Is Modifierfalse
            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)

            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.

            ShortBFS Medizinische Statistik - Eintrittsart / Mode d’admission / Genere di ricovero
            Control0..1
            BindingUnless not suitable, these codes SHALL be taken from BFS Medizinische Statistik - 18 1.2.V03 - Eintrittsart / Mode d’admission / Genere di ricovero
            (extensible to http://fhir.ch/ig/ch-core/ValueSet/bfs-medstats-18-admittype)
            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(CH Core Patient)
            Is Modifierfalse
            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
            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 ChCoreEncounterParticipationType
            (extensible to http://fhir.ch/ig/ch-core/ValueSet/ch-core-encounter-participation-type)
            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(CH Core Practitioner)
            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
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            96. 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()))
            98. 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)

            Reason why the encounter takes place.

            TypeCodeableConcept
            Is Modifierfalse
            Summarytrue
            Alternate NamesIndication, Admission diagnosis
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            100. 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(Condition, Procedure, Observation, ImmunizationRecommendation)
            Is Modifierfalse
            Summarytrue
            Alternate NamesIndication, Admission diagnosis
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            102. 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()))
            104. 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
            106. 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())
            108. 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())
            110. 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()))
            112. 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)

            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()))
            114. 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()))
            116. 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()))
            118. 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
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            120. 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
            122. Encounter.hospitalization.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.hospitalization.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 124. Encounter.hospitalization.extension:BfsAdmitRole
              Slice NameBfsAdmitRole
              Definition

              Optional Extension Element - found in all resources.

              ShortBFS Medizinische Statistik - Einweisende Instanz
              Control0..1
              This element is affected by the following invariants: ele-1
              TypeExtension(BFS Extension Medical Statistic: Admit Role for Encounter) (Extension Type: Coding)
              Is Modifierfalse
              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())
              126. Encounter.hospitalization.extension:accident
              Slice Nameaccident
              Definition

              Extension to define an encounter is caused by an accident and at which time the accident happened

              ShortFlag if hospitalization was due to an accident
              Control0..1
              This element is affected by the following invariants: ele-1
              TypeExtension(If an encounter is caused by an accident) (Complex Extension)
              Is Modifierfalse
              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())
              128. Encounter.hospitalization.extension:readmission
              Slice Namereadmission
              Definition

              Optional Extension Element - found in all resources.

              ShortFlag to indicate if it is a suspected readmission
              Control0..1
              This element is affected by the following invariants: ele-1
              TypeExtension(Encounter, Suspected Readmission) (Extension Type: boolean)
              Is Modifierfalse
              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())
              130. Encounter.hospitalization.extension:BfsDischargeDecision
              Slice NameBfsDischargeDecision
              Definition

              Optional Extension Element - found in all resources.

              ShortBFS Medizinische Statistik - Entscheid für Austritt
              Control0..1
              This element is affected by the following invariants: ele-1
              TypeExtension(BFS Extension Medical Statistic: Discharge Décision for Encounter) (Extension Type: Coding)
              Is Modifierfalse
              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.extension:BfsDischargeDestination
              Slice NameBfsDischargeDestination
              Definition

              Optional Extension Element - found in all resources.

              ShortBFS Medizinische Statistik - Aufenthalt nach Austritt
              Control0..1
              This element is affected by the following invariants: ele-1
              TypeExtension(BFS Extension Medical Statistic: Discharge Destination for Encounter) (Extension Type: Coding)
              Is Modifierfalse
              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.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())
              136. 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()))
              138. 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(CH Core Location, CH Core Organization)
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              140. Encounter.hospitalization.admitSource
              Definition

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

              ShortBFS Medizinische Statistik - Aufenthaltsort vor dem Eintritt / Séjour avant l’admission / Luogo di soggiorno prima dell’ammissione
              Control0..1
              BindingUnless not suitable, these codes SHALL be taken from BFS Medizinische Statistik - 17 1.2.V02 - Aufenthaltsort vor dem Eintritt / Séjour avant l’admission / Luogo di soggiorno prima dell’ammissione
              (extensible to http://fhir.ch/ig/ch-core/ValueSet/bfs-medstats-17-admitsource)
              TypeCodeableConcept
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              142. 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()))
              144. 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)

              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()))
              146. 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)

              Special courtesies.

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

              Special arrangements.

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

              Location/organization to which the patient is discharged.

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

              Category or kind of location after discharge.

              ShortBFS Medizinische Statistik - Behandlung nach Austritt
              Control0..1
              BindingThe codes SHOULD be taken from BFS Medizinische Statistik - 29 1.5.V04 - Behandlung nach Austritt / Prise en charge après la sortie / Trattamento dopo l’uscita
              (preferred to http://fhir.ch/ig/ch-core/ValueSet/bfs-medstats-29-dischargeencounter)

              BFS Medizinische Statistik - Behandlung nach Austritt

              TypeCodeableConcept
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              154. 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()))
              156. 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
              158. 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())
              160. 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())
              162. Encounter.location.location
              Definition

              The location where the encounter takes place.

              ShortLocation the encounter takes place
              Control1..1
              TypeReference(CH Core Location)
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              164. 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()))
              166. 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)

              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()))
              168. 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()))
              170. 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(CH Core Organization)
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              172. 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(CH Core Encounter)
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))