CH Core (R4)
7.0.0-ballot - ballot Switzerland flag

CH Core (R4), published by HL7 Switzerland. This guide is not an authorized publication; it is the continuous build for version 7.0.0-ballot 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: CH Core RelatedPerson - Detailed Descriptions

Active as of 2026-10-21

Definitions for the ch-core-relatedperson resource profile

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

0. RelatedPerson
Definition

Information about a person that is involved in the care for a patient, but who is not the target of healthcare, nor has a formal responsibility in the care process.

ShortCH Core RelatedPersonA person that is related to a patient, but who is not a direct target of care
Control0..*
Is Modifierfalse
Summaryfalse
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. RelatedPerson.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. RelatedPerson.extension
Definition

An Extension


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

ShortExtensionAdditional content defined by implementations
Comments

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

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

    6. RelatedPerson.extension:citizenship
    Slice Namecitizenship
    Definition

    The patient's legal status as citizen of a country.

    ShortCitizenship(s) of related person
    Control0..*
    This element is affected by the following invariants: ele-1
    TypeExtension(Patient Citizenship) (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())
    8. RelatedPerson.modifierExtension
    Definition

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

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

    ShortExtensions that cannot be ignored
    Comments

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

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

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

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

    Whether this related person record is in active use.

    ShortWhether this related person's record is in active use
    Comments

    This element is labeled as a modifier because it may be used to mark that the resource was created in error.

    Control0..1
    Typeboolean
    Is Modifiertrue because This element is labelled as a modifier because it is a status element that can indicate that a record should not be treated as valid
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Requirements

    Need to be able to mark a related person record as not to be used, such as if it was created in error.

    Meaning if MissingThis resource is generally assumed to be active if no value is provided for the active element
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    12. RelatedPerson.patient
    Definition

    The patient this person is related to.

    ShortThe patient this person is related to
    Control1..1
    TypeReference(CH Core Patient, Patient)
    Is Modifierfalse
    Summarytrue
    Requirements

    We need to know which patient this RelatedPerson is related to.

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

    A name associated with the person.

    ShortA name associated with the person
    Control0..*
    TypeHumanName(Human Name)
    Is Modifierfalse
    Summarytrue
    Requirements

    Related persons need to be identified by name, but it is uncommon to need details about multiple other names for that person.

    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ch-core-hm-1: if officialName with eCH-011 Extension is specified, it can only be put on a name where use attribute is official (family.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name' and value='officialName').empty() or (family.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name' and value='officialName').exists() and use='official'))
    ch-core-hm-2: if originalName with eCH-011 Extension is specified, it can only be put on a name where use attribute is maiden (family.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name' and value='originalName').empty() or ((family.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name' and value='originalName').exists() and use='maiden')))
    ch-core-hm-3: ch-ext-ech-11-name can only be put on a family name (descendants().extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name').count()=family.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name').count())
    ch-core-hm-4: ch-ext-ech-11-firstname can only be put on a given name (descendants().extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-firstname').count()=given.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-firstname').count())
    16. RelatedPerson.telecom
    Definition

    A contact detail for the person, e.g. a telephone number or an email address.

    ShortA contact detail for the person
    Comments

    Person may have multiple ways to be contacted with different uses or applicable periods. May need to have options for contacting the person urgently, and also to help with identification.

    Control0..*
    TypeContactPoint
    Is Modifierfalse
    Summarytrue
    Requirements

    People have (primary) ways to contact them in some way such as phone, email.

    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 RelatedPerson.telecom. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ system
    • Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them

      18. RelatedPerson.telecom.system
      Definition

      Telecommunications form for contact point - what communications system is required to make use of the contact.

      Shortphone | fax | email | pager | url | sms | other
      Control10..1
      This element is affected by the following invariants: cpt-2
      BindingThe codes SHALL be taken from ContactPointSystemhttp://hl7.org/fhir/ValueSet/contact-point-system|4.0.1
      (required to http://hl7.org/fhir/ValueSet/contact-point-system|4.0.1)

      Telecommunications form for contact point.

      Typecode
      Is Modifierfalse
      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()))
      20. RelatedPerson.telecom.value
      Definition

      The actual contact point details, in a form that is meaningful to the designated communication system (i.e. phone number or email address).

      ShortThe actual contact point details
      Comments

      Additional text data such as phone extension numbers, or notes about use of the contact are sometimes included in the value.

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

      Need to support legacy numbers that are not in a tightly controlled format.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      22. RelatedPerson.telecom.use
      Definition

      Identifies the purpose for the contact point.

      Shorthome | work | temp | old | mobile - purpose of this contact point
      Comments

      Applications can assume that a contact is current unless it explicitly says that it is temporary or old.

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

      Use of contact point.

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

      Need to track the way a person uses this contact, so a user can choose which is appropriate for their purpose.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      24. RelatedPerson.telecom:email
      Slice Nameemail
      Definition

      A contact detail for the person, e.g. a telephone number or an email address.

      ShortA contact detail for the person
      Comments

      Person may have multiple ways to be contacted with different uses or applicable periods. May need to have options for contacting the person urgently, and also to help with identification.

      Control0..*
      TypeContactPoint(CH Core ContactPoint eCH-0046 Email)
      Is Modifierfalse
      Summarytrue
      Requirements

      People have (primary) ways to contact them in some way such as phone, email.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      26. RelatedPerson.telecom:phone
      Slice Namephone
      Definition

      A contact detail for the person, e.g. a telephone number or an email address.

      ShortA contact detail for the person
      Comments

      Person may have multiple ways to be contacted with different uses or applicable periods. May need to have options for contacting the person urgently, and also to help with identification.

      Control0..*
      TypeContactPoint(CH Core ContactPoint eCH-0046 Phone)
      Is Modifierfalse
      Summarytrue
      Requirements

      People have (primary) ways to contact them in some way such as phone, email.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      28. RelatedPerson.telecom:internet
      Slice Nameinternet
      Definition

      A contact detail for the person, e.g. a telephone number or an email address.

      ShortA contact detail for the person
      Comments

      Person may have multiple ways to be contacted with different uses or applicable periods. May need to have options for contacting the person urgently, and also to help with identification.

      Control0..*
      TypeContactPoint(CH Core ContactPoint eCH-0046 Internet)
      Is Modifierfalse
      Summarytrue
      Requirements

      People have (primary) ways to contact them in some way such as phone, email.

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

      Address where the related person can be contacted or visited.

      ShortAddress where the related person can be contacted or visited
      Control0..*
      TypeAddress(CH Core Address)
      Is Modifierfalse
      Summarytrue
      Requirements

      Need to keep track where the related person can be contacted per postal mail or visited.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ch-addr-2: For a Swiss address, a canton abbreviation from the value set 'eCH-0007 Canton Abbreviation' must be used. (country.extension.where(url = 'http://hl7.org/fhir/StructureDefinition/iso21090-codedString' and (value.code = 'CH' or value.code = 'CHE')).empty() or state.empty() or state.memberOf('http://fhir.ch/ig/ch-core/ValueSet/ech-7-cantonabbreviation'))

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

      0. RelatedPerson
      ShortCH Core RelatedPerson
      2. RelatedPerson.extension
      SlicingThis element introduces a set of slices on RelatedPerson.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them

        4. RelatedPerson.extension:citizenship
        Slice Namecitizenship
        ShortCitizenship(s) of related person
        Control0..*
        TypeExtension(Patient Citizenship) (Complex Extension)
        6. RelatedPerson.patient
        TypeReference(CH Core Patient)
        8. RelatedPerson.name
        TypeHumanName(Human Name)
        10. RelatedPerson.telecom
        SlicingThis element introduces a set of slices on RelatedPerson.telecom. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ system
        • Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them

          12. RelatedPerson.telecom.system
          Control1..?
          14. RelatedPerson.telecom.value
          Control1..?
          16. RelatedPerson.telecom:email
          Slice Nameemail
          Control0..*
          TypeContactPoint(CH Core ContactPoint eCH-0046 Email)
          18. RelatedPerson.telecom:phone
          Slice Namephone
          Control0..*
          TypeContactPoint(CH Core ContactPoint eCH-0046 Phone)
          20. RelatedPerson.telecom:internet
          Slice Nameinternet
          Control0..*
          TypeContactPoint(CH Core ContactPoint eCH-0046 Internet)
          22. RelatedPerson.address
          TypeAddress(CH Core Address)

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

          0. RelatedPerson
          Definition

          Information about a person that is involved in the care for a patient, but who is not the target of healthcare, nor has a formal responsibility in the care process.

          ShortCH Core RelatedPerson
          Control0..*
          Is Modifierfalse
          Summaryfalse
          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. RelatedPerson.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. RelatedPerson.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. RelatedPerson.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. RelatedPerson.language
          Definition

          The base language in which the resource is written.

          ShortLanguage of the resource content
          Comments

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

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

          A human language.

          Additional BindingsPurpose
          AllLanguagesMax Binding
          Typecode
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          10. RelatedPerson.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. RelatedPerson.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. RelatedPerson.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 RelatedPerson.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them

            16. RelatedPerson.extension:citizenship
            Slice Namecitizenship
            Definition

            The patient's legal status as citizen of a country.

            ShortCitizenship(s) of related person
            Control0..*
            This element is affected by the following invariants: ele-1
            TypeExtension(Patient Citizenship) (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())
            18. RelatedPerson.modifierExtension
            Definition

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

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

            ShortExtensions that cannot be ignored
            Comments

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

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

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

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

            Identifier for a person within a particular scope.

            ShortA human identifier for this person
            NoteThis is a business identifier, not a resource identifier (see discussion)
            Control0..*
            TypeIdentifier
            Is Modifierfalse
            Summarytrue
            Requirements

            People are known by a variety of ids. Some institutions maintain several, and most collect identifiers for exchange with other organizations concerning the patient. Examples are national person identifier and local identifier.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            22. RelatedPerson.active
            Definition

            Whether this related person record is in active use.

            ShortWhether this related person's record is in active use
            Comments

            This element is labeled as a modifier because it may be used to mark that the resource was created in error.

            Control0..1
            Typeboolean
            Is Modifiertrue because This element is labelled as a modifier because it is a status element that can indicate that a record should not be treated as valid
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summarytrue
            Requirements

            Need to be able to mark a related person record as not to be used, such as if it was created in error.

            Meaning if MissingThis resource is generally assumed to be active if no value is provided for the active element
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            24. RelatedPerson.patient
            Definition

            The patient this person is related to.

            ShortThe patient this person is related to
            Control1..1
            TypeReference(CH Core Patient)
            Is Modifierfalse
            Summarytrue
            Requirements

            We need to know which patient this RelatedPerson is related to.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            26. RelatedPerson.relationship
            Definition

            The nature of the relationship between a patient and the related person.

            ShortThe nature of the relationship
            Control0..*
            BindingThe codes SHOULD be taken from PatientRelationshipType
            (preferred to http://hl7.org/fhir/ValueSet/relatedperson-relationshiptype|4.0.1)

            The nature of the relationship between a patient and the related person.

            TypeCodeableConcept
            Is Modifierfalse
            Summarytrue
            Requirements

            We need to know the relationship with the patient since it influences the interpretation of the information attributed to this person.

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

            A name associated with the person.

            ShortA name associated with the person
            Control0..*
            TypeHumanName(Human Name)
            Is Modifierfalse
            Summarytrue
            Requirements

            Related persons need to be identified by name, but it is uncommon to need details about multiple other names for that person.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ch-core-hm-1: if officialName with eCH-011 Extension is specified, it can only be put on a name where use attribute is official (family.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name' and value='officialName').empty() or (family.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name' and value='officialName').exists() and use='official'))
            ch-core-hm-2: if originalName with eCH-011 Extension is specified, it can only be put on a name where use attribute is maiden (family.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name' and value='originalName').empty() or ((family.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name' and value='originalName').exists() and use='maiden')))
            ch-core-hm-3: ch-ext-ech-11-name can only be put on a family name (descendants().extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name').count()=family.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-name').count())
            ch-core-hm-4: ch-ext-ech-11-firstname can only be put on a given name (descendants().extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-firstname').count()=given.extension.where(url='http://fhir.ch/ig/ch-core/StructureDefinition/ch-ext-ech-11-firstname').count())
            30. RelatedPerson.telecom
            Definition

            A contact detail for the person, e.g. a telephone number or an email address.

            ShortA contact detail for the person
            Comments

            Person may have multiple ways to be contacted with different uses or applicable periods. May need to have options for contacting the person urgently, and also to help with identification.

            Control0..*
            TypeContactPoint
            Is Modifierfalse
            Summarytrue
            Requirements

            People have (primary) ways to contact them in some way such as phone, email.

            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 RelatedPerson.telecom. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ system
            • Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them

              32. RelatedPerson.telecom.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
              34. RelatedPerson.telecom.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 RelatedPerson.telecom.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 36. RelatedPerson.telecom.system
                Definition

                Telecommunications form for contact point - what communications system is required to make use of the contact.

                Shortphone | fax | email | pager | url | sms | other
                Control1..1
                This element is affected by the following invariants: cpt-2
                BindingThe codes SHALL be taken from ContactPointSystem
                (required to http://hl7.org/fhir/ValueSet/contact-point-system|4.0.1)

                Telecommunications form for contact point.

                Typecode
                Is Modifierfalse
                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()))
                38. RelatedPerson.telecom.value
                Definition

                The actual contact point details, in a form that is meaningful to the designated communication system (i.e. phone number or email address).

                ShortThe actual contact point details
                Comments

                Additional text data such as phone extension numbers, or notes about use of the contact are sometimes included in the value.

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

                Need to support legacy numbers that are not in a tightly controlled format.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                40. RelatedPerson.telecom.use
                Definition

                Identifies the purpose for the contact point.

                Shorthome | work | temp | old | mobile - purpose of this contact point
                Comments

                Applications can assume that a contact is current unless it explicitly says that it is temporary or old.

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

                Use of contact point.

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

                Need to track the way a person uses this contact, so a user can choose which is appropriate for their purpose.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                42. RelatedPerson.telecom.rank
                Definition

                Specifies a preferred order in which to use a set of contacts. ContactPoints with lower rank values are more preferred than those with higher rank values.

                ShortSpecify preferred order of use (1 = highest)
                Comments

                Note that rank does not necessarily follow the order in which the contacts are represented in the instance.

                Control0..1
                TypepositiveInt
                Is Modifierfalse
                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()))
                44. RelatedPerson.telecom.period
                Definition

                Time period when the contact point was/is in use.

                ShortTime period when the contact point was/is in use
                Control0..1
                TypePeriod
                Is Modifierfalse
                Summarytrue
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                46. RelatedPerson.telecom:email
                Slice Nameemail
                Definition

                A contact detail for the person, e.g. a telephone number or an email address.

                ShortA contact detail for the person
                Comments

                Person may have multiple ways to be contacted with different uses or applicable periods. May need to have options for contacting the person urgently, and also to help with identification.

                Control0..*
                TypeContactPoint(CH Core ContactPoint eCH-0046 Email)
                Is Modifierfalse
                Summarytrue
                Requirements

                People have (primary) ways to contact them in some way such as phone, email.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                48. RelatedPerson.telecom:phone
                Slice Namephone
                Definition

                A contact detail for the person, e.g. a telephone number or an email address.

                ShortA contact detail for the person
                Comments

                Person may have multiple ways to be contacted with different uses or applicable periods. May need to have options for contacting the person urgently, and also to help with identification.

                Control0..*
                TypeContactPoint(CH Core ContactPoint eCH-0046 Phone)
                Is Modifierfalse
                Summarytrue
                Requirements

                People have (primary) ways to contact them in some way such as phone, email.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                50. RelatedPerson.telecom:internet
                Slice Nameinternet
                Definition

                A contact detail for the person, e.g. a telephone number or an email address.

                ShortA contact detail for the person
                Comments

                Person may have multiple ways to be contacted with different uses or applicable periods. May need to have options for contacting the person urgently, and also to help with identification.

                Control0..*
                TypeContactPoint(CH Core ContactPoint eCH-0046 Internet)
                Is Modifierfalse
                Summarytrue
                Requirements

                People have (primary) ways to contact them in some way such as phone, email.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                52. RelatedPerson.gender
                Definition

                Administrative Gender - the gender that the person is considered to have for administration and record keeping purposes.

                Shortmale | female | other | unknown
                Control0..1
                BindingThe codes SHALL be taken from AdministrativeGender
                (required to http://hl7.org/fhir/ValueSet/administrative-gender|4.0.1)

                The gender of a person used for administrative purposes.

                Typecode
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Summarytrue
                Requirements

                Needed for identification of the person, in combination with (at least) name and birth date.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                54. RelatedPerson.birthDate
                Definition

                The date on which the related person was born.

                ShortThe date on which the related person was born
                Control0..1
                Typedate
                Is Modifierfalse
                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()))
                56. RelatedPerson.address
                Definition

                Address where the related person can be contacted or visited.

                ShortAddress where the related person can be contacted or visited
                Control0..*
                TypeAddress(CH Core Address)
                Is Modifierfalse
                Summarytrue
                Requirements

                Need to keep track where the related person can be contacted per postal mail or visited.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ch-addr-2: For a Swiss address, a canton abbreviation from the value set 'eCH-0007 Canton Abbreviation' must be used. (country.extension.where(url = 'http://hl7.org/fhir/StructureDefinition/iso21090-codedString' and (value.code = 'CH' or value.code = 'CHE')).empty() or state.empty() or state.memberOf('http://fhir.ch/ig/ch-core/ValueSet/ech-7-cantonabbreviation'))
                58. RelatedPerson.photo
                Definition

                Image of the person.

                ShortImage of the person
                Control0..*
                TypeAttachment
                Is Modifierfalse
                Summaryfalse
                Requirements

                Many EHR systems have the capability to capture an image of persons. Fits with newer social media usage too.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                60. RelatedPerson.period
                Definition

                The period of time during which this relationship is or was active. If there are no dates defined, then the interval is unknown.

                ShortPeriod of time that this relationship is considered valid
                Control0..1
                TypePeriod
                Is Modifierfalse
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                62. RelatedPerson.communication
                Definition

                A language which may be used to communicate with about the patient's health.

                ShortA language which may be used to communicate with about the patient's health
                Comments

                If no language is specified, this implies that the default local language is spoken. If you need to convey proficiency for multiple modes, then you need multiple RelatedPerson.Communication associations. If the RelatedPerson does not speak the default local language, then the Interpreter Required Standard can be used to explicitly declare that an interpreter is required.

                Control0..*
                TypeBackboneElement
                Is Modifierfalse
                Summaryfalse
                Requirements

                If a related person does not speak the local language, interpreters may be required, so languages spoken and proficiency is an important things to keep track of both for patient and other persons of interest.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                64. RelatedPerson.communication.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
                66. RelatedPerson.communication.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())
                68. RelatedPerson.communication.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())
                70. RelatedPerson.communication.language
                Definition

                The ISO-639-1 alpha 2 code in lower case for the language, optionally followed by a hyphen and the ISO-3166-1 alpha 2 code for the region in upper case; e.g. "en" for English, or "en-US" for American English versus "en-EN" for England English.

                ShortThe language which can be used to communicate with the patient about his or her health
                Comments

                The structure aa-BB with this exact casing is one the most widely used notations for locale. However not all systems actually code this but instead have it as free text. Hence CodeableConcept instead of code as the data type.

                Control1..1
                BindingThe codes SHOULD be taken from CommonLanguages
                (preferred to http://hl7.org/fhir/ValueSet/languages|4.0.1)

                A human language.

                Additional BindingsPurpose
                AllLanguagesMax Binding
                TypeCodeableConcept
                Is Modifierfalse
                Summaryfalse
                Requirements

                Most systems in multilingual countries will want to convey language. Not all systems actually need the regional dialect.

                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                72. RelatedPerson.communication.preferred
                Definition

                Indicates whether or not the patient prefers this language (over other languages he masters up a certain level).

                ShortLanguage preference indicator
                Comments

                This language is specifically identified for communicating healthcare information.

                Control0..1
                Typeboolean
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Summaryfalse
                Requirements

                People that master multiple languages up to certain level may prefer one or more, i.e. feel more confident in communicating in a particular language making other languages sort of a fall back method.

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