Amakomaya Nepal FHIR Implementation Guide
2.0.0 - ci-build Nepal

Amakomaya Nepal FHIR Implementation Guide - Local Development build (v2.0.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Resource Profile: AMKCorePerson - Detailed Descriptions

Active as of 2025-12-11

Definitions for the amk-core-person resource profile.

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

0. Person
Definition

Demographics and administrative information about a person independent of a specific health-related context.

ShortA generic person record
Comments

The Person resource does justice to person registries that keep track of persons regardless of their role. The Person resource is also a primary resource to point to for people acting in a particular role such as SubjectofCare, Practitioner, and Agent. Very few attributes are specific to any role and so Person is kept lean. Most attributes are expected to be tied to the role the Person plays rather than the Person himself. Examples of that are Guardian (SubjectofCare), ContactParty (SubjectOfCare, Practitioner), and multipleBirthInd (SubjectofCare).

Control0..*
Is Modifierfalse
Must Supportfalse
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.trace('id') in %resource.descendants().select(reference | as(uri))) or descendants().where(reference='#' | as(uri)='#').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. Person.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. For DomainResources, if more than one implicitRules policy applies, additional policies may be conveyed using the additionalImplicitRules extension.

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 its 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 its meaning or interpretation
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Must Supportfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. Person.contained
Definition

These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.

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. Contained resources may be a resource type defined in the FHIR specification, or an additional resource.

Control0..*
This element is affected by the following invariants: dom-2, dom-4, dom-3, dom-5
TypeResource
Is Modifierfalse
Must Supportfalse
Summaryfalse
Alternate Namesinline resources, anonymous resources, contained resources
6. Person.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 managable, 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
Must Supportfalse
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
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 Person.modifierExtension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 8. Person.identifier
    Definition

    Identifier for a person within a particular scope.

    ShortA human identifier for this person
    Comments

    Systems MAY use identifier for user identities (using the type='USER'). Refer to the Security and Privacy section for additional guidance on representing user identities, particularly where duplicating the identifier to other resources.


    Systems MAY use identifier for user identities (using the type='USER'). Refer to the Security and Privacy section for additional guidance on representing user identities, particularly where duplicating the identifier to other resources.

    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control10..*
    TypeIdentifier
    Is Modifierfalse
    Must Supportfalse
    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 person. 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()))
    10. Person.active
    Definition

    Whether this person's record is in active use.

    ShortThis person's record is in active use
    Control10..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
    Must Supportfalse
    Summarytrue
    Requirements

    Need to be able to mark a person record as not to be used because it was created in error.

    Pattern Valuetrue
    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 foundhere

    0. Person
    2. Person.identifier
    NoteThis is a business identifier, not a resource identifier (see discussion)
    Control1..?
    4. Person.active
    Control1..?
    Pattern Valuetrue

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

    0. Person
    Definition

    Demographics and administrative information about a person independent of a specific health-related context.

    ShortA generic person record
    Comments

    The Person resource does justice to person registries that keep track of persons regardless of their role. The Person resource is also a primary resource to point to for people acting in a particular role such as SubjectofCare, Practitioner, and Agent. Very few attributes are specific to any role and so Person is kept lean. Most attributes are expected to be tied to the role the Person plays rather than the Person himself. Examples of that are Guardian (SubjectofCare), ContactParty (SubjectOfCare, Practitioner), and multipleBirthInd (SubjectofCare).

    Control0..*
    Is Modifierfalse
    Must Supportfalse
    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.trace('id') in %resource.descendants().select(reference | as(uri))) or descendants().where(reference='#' | as(uri)='#').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. Person.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

    Within the context of the FHIR RESTful interactions, the resource has an id except for cases like the create and conditional update. Otherwise, the use of the resource id depends on the given use case.

    Control0..1
    Typeid
    Is Modifierfalse
    Must Supportfalse
    Summarytrue
    4. Person.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
    Must Supportfalse
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    6. Person.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. For DomainResources, if more than one implicitRules policy applies, additional policies may be conveyed using the additionalImplicitRules extension.

    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 its 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 its meaning or interpretation
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supportfalse
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    8. Person.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 SHALL be taken from AllLanguages
    (required to http://hl7.org/fhir/ValueSet/all-languages|6.0.0-ballot5)

    IETF language tag for a human language

    Typecode
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Must Supportfalse
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    10. Person.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 a 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
    This element is affected by the following invariants: dom-6
    TypeNarrative
    Is Modifierfalse
    Must Supportfalse
    Summaryfalse
    Alternate Namesnarrative, html, xhtml, display
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    12. Person.contained
    Definition

    These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, nor can they have their own independent transaction scope. This is allowed to be a Parameters resource if and only if it is referenced by a resource that provides context/meaning.

    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. Contained resources may be a resource type defined in the FHIR specification, or an additional resource.

    Control0..*
    This element is affected by the following invariants: dom-2, dom-4, dom-3, dom-5
    TypeResource
    Is Modifierfalse
    Must Supportfalse
    Summaryfalse
    Alternate Namesinline resources, anonymous resources, contained resources
    14. Person.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 managable, 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
    Must Supportfalse
    Summaryfalse
    Alternate Namesextensions, user content
    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 Person.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 16. Person.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 managable, 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
      Must Supportfalse
      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
      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 Person.modifierExtension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 18. Person.identifier
        Definition

        Identifier for a person within a particular scope.

        ShortA human identifier for this person
        Comments

        Systems MAY use identifier for user identities (using the type='USER'). Refer to the Security and Privacy section for additional guidance on representing user identities, particularly where duplicating the identifier to other resources.

        NoteThis is a business identifier, not a resource identifier (see discussion)
        Control1..*
        TypeIdentifier
        Is Modifierfalse
        Must Supportfalse
        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 person. 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()))
        20. Person.active
        Definition

        Whether this person's record is in active use.

        ShortThis person's record is in active use
        Control1..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
        Must Supportfalse
        Summarytrue
        Requirements

        Need to be able to mark a person record as not to be used because it was created in error.

        Pattern Valuetrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        22. Person.name
        Definition

        A name associated with the person.

        ShortA name associated with the person
        Comments

        Person may have multiple names with different uses or applicable periods.

        Control0..*
        TypeHumanName
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        Need to be able to track the person by multiple names. Examples are your official name and a partner name.

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

        DO NOT use .telecom properties to represent user identities. Refer to the Security and Privacy section for additional guidance on representing user identities.

        Control0..*
        TypeContactPoint
        Is Modifierfalse
        Must Supportfalse
        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. Person.gender
        Definition

        Administrative Gender.

        Shortmale | female | other | unknown
        Comments

        The gender might not match the biological sex as determined by genetics, or the individual's preferred identification. Note that for both humans and particularly animals, there are other legitimate possibilities than M and F, though a clear majority of systems and contexts only support M and F.

        Control0..1
        BindingThe codes SHALL be taken from AdministrativeGender
        (required to http://hl7.org/fhir/ValueSet/administrative-gender|6.0.0-ballot5)

        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
        Must Supportfalse
        Summarytrue
        Requirements

        Needed for identification of the person, in combination with (at least) name and birth date. Gender of person drives many clinical processes.

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

        The birth date for the person.

        ShortThe date on which the person was born
        Comments

        At least an estimated year should be provided as a guess if the real DOB is unknown.

        Control0..1
        Typedate
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summarytrue
        Requirements

        Age of person drives many clinical processes, and is often used in performing identification of the person. Times are not included so as to not confuse things with potential timezone issues.

        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        30. Person.deceased[x]
        Definition

        Indicates if the individual is deceased or not.

        ShortIndicates if the individual is deceased or not
        Comments

        If there's no value in the instance, it means there is no statement on whether or not the individual is deceased. Most systems will interpret the absence of a value as a sign of the person being alive.

        Control0..1
        TypeChoice of: boolean, dateTime
        [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Must Supportfalse
        Summarytrue
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        32. Person.address
        Definition

        One or more addresses for the person.

        ShortOne or more addresses for the person
        Comments

        Person may have multiple addresses with different uses or applicable periods.

        Control0..*
        TypeAddress
        Is Modifierfalse
        Must Supportfalse
        Summarytrue
        Requirements

        May need to keep track of person's addresses for contacting, billing or reporting requirements and also to help with identification.

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

        This field contains a person's most recent marital (civil) status.

        ShortMarital (civil) status of a person
        Comments

        Many countries maintain a register of births, deaths and marriages, and this would simplify that interaction

        Control0..1
        BindingUnless not suitable, these codes SHALL be taken from MaritalStatusCodes
        (extensible to http://hl7.org/fhir/ValueSet/marital-status|6.0.0-ballot5)

        The domestic partnership status of a person.

        TypeCodeableConcept
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        36. Person.photo
        Definition

        An image that can be displayed as a thumbnail of the person to enhance the identification of the individual.

        ShortImage of the person
        Control0..*
        TypeAttachment
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        38. Person.communication
        Definition

        A language which may be used to communicate with the person about his or her health.

        ShortA language which may be used to communicate with the person about his or her 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 Person.Communication associations. For animals, language is not a relevant field, and should be absent from the instance. If the Patient does not speak the default local language, then the Interpreter Required Standard can be used to explicitly declare that an interpreter is required.

        Note that this property should not be used to update any linked/logically linked practitioner resources as it serves as a language that can be used to communicate with patients - however it may be used to inform the value on practitioner, along with their role at the organization (with the practitioner's permission)

        Control0..*
        TypeBackboneElement
        Is Modifierfalse
        Must Supportfalse
        Summaryfalse
        Requirements

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

        Invariantsele-1: All FHIR elements must have a @value or children or both (hasValue() or (children().count() > id.count()))
        40. Person.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
        This element is affected by the following invariants: ele-1
        Typestring
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        42. Person.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 managable, 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()))
        SlicingThis element introduces a set of slices on Person.communication.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 44. Person.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 managable, 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()))
          SlicingThis element introduces a set of slices on Person.communication.modifierExtension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 46. Person.communication.language
            Definition

            The language which may be used to communicate with the individual.

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

            The language is commonly represented using the ISO-639-1 alpha code in lower case for the language, optionally followed by a hyphen and the ISO-3166-1 alpha code for the region in upper case. For example, "en" for English, or "en-US" for American English versus "en-AU" for Australian English, sgn-US for American Sign Language, sgn-NL for Dutch Sign Language, etc.

            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 SHALL be taken from AllLanguages
            (required to http://hl7.org/fhir/ValueSet/all-languages|6.0.0-ballot5)

            IETF language tag for a human language

            TypeCodeableConcept
            Is Modifierfalse
            Must Supportfalse
            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()))
            48. Person.communication.preferred
            Definition

            Indicates whether or not the person 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
            Must Supportfalse
            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()))
            50. Person.managingOrganization
            Definition

            The organization that is the custodian of the person record.

            ShortThe organization that is the custodian of the person record
            Control0..1
            TypeReference(Organization)
            Is Modifierfalse
            Must Supportfalse
            Summarytrue
            Requirements

            Need to know who recognizes this person record, manages and updates it.

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

            Link to a resource that concerns the same actual person.

            ShortLink to a resource that concerns the same actual person
            Control0..*
            TypeBackboneElement
            Is Modifierfalse
            Must Supportfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children or both (hasValue() or (children().count() > id.count()))
            54. Person.link.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
            This element is affected by the following invariants: ele-1
            Typestring
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            56. Person.link.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 managable, 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()))
            SlicingThis element introduces a set of slices on Person.link.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 58. Person.link.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 managable, 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()))
              SlicingThis element introduces a set of slices on Person.link.modifierExtension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 60. Person.link.target
                Definition

                The resource to which this actual person is associated.

                ShortThe resource to which this actual person is associated
                Control1..1
                TypeReference(Patient, Practitioner, RelatedPerson, Person)
                Is Modifierfalse
                Must Supportfalse
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                62. Person.link.assurance
                Definition

                Level of assurance that this link is associated with the target resource.

                Shortlevel1 | level2 | level3 | level4
                Control0..1
                BindingThe codes SHALL be taken from IdentityAssuranceLevel
                (required to http://hl7.org/fhir/ValueSet/identity-assuranceLevel|6.0.0-ballot5)

                The level of confidence that this link represents the same actual person, based on NIST Authentication Levels.

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