AU Base Implementation Guide
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AU Base Implementation Guide, published by HL7 Australia. This guide is not an authorized publication; it is the continuous build for version 4.2.1-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7au/au-fhir-base/ and changes regularly. See the Directory of published versions

Data Type Profile: AUIHI - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 2

Definitions for the au-ihi data type profile.

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

0. Identifier
Definition

Individual Healthcare Identifier (IHI) assigned under the HI Service to a patient.

ShortIndividual Healthcare Identifier (IHI)
Invariantsinv-ihi-value-0: IHI shall be an exactly 16 digit number (value.matches('^([0-9]{16})$'))
inv-ihi-value-1: IHI prefix is 800360 (value.startsWith('800360'))
inv-ihi-value-2: IHI shall pass the Luhn algorithm check ((((select(value.substring(0,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(1,1).toInteger())+(select(value.substring(2,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(3,1).toInteger())+(select(value.substring(4,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(5,1).toInteger())+(select(value.substring(6,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(7,1).toInteger())+(select(value.substring(8,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(9,1).toInteger())+(select(value.substring(10,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(11,1).toInteger())+(select(value.substring(12,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(13,1).toInteger())+(select(value.substring(14,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(15,1).toInteger()))mod 10=0))
2. Identifier.extension
SlicingThis element introduces a set of slices on Identifier.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
    • 4. Identifier.extension:ihiStatus
    Slice NameihiStatus
    Control0..1
    TypeExtension(IHI Status) (Extension Type: Coding)
    6. Identifier.extension:ihiRecordStatus
    Slice NameihiRecordStatus
    Control0..1
    TypeExtension(IHI Record Status) (Extension Type: Coding)
    8. Identifier.extension:ihiVerifiedDate
    Slice NameihiVerifiedDate
    Control0..1
    TypeExtension(IHI Verification Date) (Extension Type: dateTime)
    10. Identifier.type
    Control1..?
    Pattern Value{
      "coding" : [{
        "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
        "code" : "NI"
      }]
    }
    12. Identifier.system
    Control1..?
    Fixed Valuehttp://ns.electronichealth.net.au/id/hi/ihi/1.0
    14. Identifier.value
    ShortIHI
    Comments

    This concept is equivalent to Australian Institute of Health and Welfare data element 743458 Person—Individual Healthcare Identifier, N(16).

    Control1..?
    This element is affected by the following invariants: inv-ihi-0, inv-ihi-1, inv-ihi-2
    Max Length16
    Example<br/><b>IHI</b>:8003608833357361

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

    0. Identifier
    Definition

    Individual Healthcare Identifier (IHI) assigned under the HI Service to a patient.


    An identifier - identifies some entity uniquely and unambiguously. Typically this is used for business identifiers.

    ShortIndividual Healthcare Identifier (IHI)An identifier intended for computation
    Control0..*
    This element is affected by the following invariants: ele-1
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    inv-ihi-value-0: IHI shall be an exactly 16 digit number (value.matches('^([0-9]{16})$'))
    inv-ihi-value-1: IHI prefix is 800360 (value.startsWith('800360'))
    inv-ihi-value-2: IHI shall pass the Luhn algorithm check ((((select(value.substring(0,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(1,1).toInteger())+(select(value.substring(2,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(3,1).toInteger())+(select(value.substring(4,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(5,1).toInteger())+(select(value.substring(6,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(7,1).toInteger())+(select(value.substring(8,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(9,1).toInteger())+(select(value.substring(10,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(11,1).toInteger())+(select(value.substring(12,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(13,1).toInteger())+(select(value.substring(14,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(15,1).toInteger()))mod 10=0))
    2. Identifier.extension
    Definition

    An Extension


    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.

    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 Identifier.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
    • value @ url
      • 4. Identifier.extension:ihiStatus
      Slice NameihiStatus
      Definition

      IHI number status associated with an IHI identifier.

      ShortIHI status
      Control0..1
      TypeExtension(IHI Status) (Extension Type: Coding)
      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())
      6. Identifier.extension:ihiRecordStatus
      Slice NameihiRecordStatus
      Definition

      Known IHI record status associated with an IHI identifier.

      ShortIHI record status
      Control0..1
      TypeExtension(IHI Record Status) (Extension Type: Coding)
      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())
      8. Identifier.extension:ihiVerifiedDate
      Slice NameihiVerifiedDate
      Definition

      The date, and optionally time, that the IHI was verified with HI Services.

      ShortIHI Verification Date
      Control0..1
      TypeExtension(IHI Verification Date) (Extension Type: dateTime)
      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())
      10. Identifier.use
      Definition

      The purpose of this identifier.

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

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

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

      Identifies the purpose for this identifier, if known .

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

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

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

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

      ShortDescription of identifier
      Comments

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

      Control10..1
      BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codeshttp://hl7.org/fhir/ValueSet/identifier-type
      (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

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

      TypeCodeableConcept
      Is Modifierfalse
      Summarytrue
      Requirements

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

      Pattern Value{
        "coding" : [{
          "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
          "code" : "NI"
        }]
      }
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      14. Identifier.system
      Definition

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

      ShortThe namespace for the identifier value
      Comments

      Identifier.system is always case sensitive.

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

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

      Fixed Valuehttp://ns.electronichealth.net.au/id/hi/ihi/1.0
      Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      16. Identifier.value
      Definition

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

      ShortIHIThe value that is unique
      Comments

      This concept is equivalent to Australian Institute of Health and Welfare data element 743458 Person—Individual Healthcare Identifier, N(16).


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

      Control10..1
      This element is affected by the following invariants: inv-ihi-0, inv-ihi-1, inv-ihi-2
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Max Length16
      Example<br/><b>General</b>:123456 <br/><b>IHI</b>:8003608833357361
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

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

      0. Identifier
      Definition

      Individual Healthcare Identifier (IHI) assigned under the HI Service to a patient.

      ShortIndividual Healthcare Identifier (IHI)
      Control0..*
      This element is affected by the following invariants: ele-1
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      inv-ihi-value-0: IHI shall be an exactly 16 digit number (value.matches('^([0-9]{16})$'))
      inv-ihi-value-1: IHI prefix is 800360 (value.startsWith('800360'))
      inv-ihi-value-2: IHI shall pass the Luhn algorithm check ((((select(value.substring(0,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(1,1).toInteger())+(select(value.substring(2,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(3,1).toInteger())+(select(value.substring(4,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(5,1).toInteger())+(select(value.substring(6,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(7,1).toInteger())+(select(value.substring(8,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(9,1).toInteger())+(select(value.substring(10,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(11,1).toInteger())+(select(value.substring(12,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(13,1).toInteger())+(select(value.substring(14,1).toInteger()).select(iif($this<5, $this*2, (($this*2)-9))))+(value.substring(15,1).toInteger()))mod 10=0))
      2. Identifier.id
      Definition

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

      ShortUnique id for inter-element referencing
      Control0..1
      Typestring
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      4. Identifier.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 Identifier.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
      • value @ url
        • 6. Identifier.extension:ihiStatus
        Slice NameihiStatus
        Definition

        IHI number status associated with an IHI identifier.

        ShortIHI status
        Control0..1
        TypeExtension(IHI Status) (Extension Type: Coding)
        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())
        8. Identifier.extension:ihiRecordStatus
        Slice NameihiRecordStatus
        Definition

        Known IHI record status associated with an IHI identifier.

        ShortIHI record status
        Control0..1
        TypeExtension(IHI Record Status) (Extension Type: Coding)
        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())
        10. Identifier.extension:ihiVerifiedDate
        Slice NameihiVerifiedDate
        Definition

        The date, and optionally time, that the IHI was verified with HI Services.

        ShortIHI Verification Date
        Control0..1
        TypeExtension(IHI Verification Date) (Extension Type: dateTime)
        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())
        12. Identifier.use
        Definition

        The purpose of this identifier.

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

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

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

        Identifies the purpose for this identifier, if known .

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

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

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

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

        ShortDescription of identifier
        Comments

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

        Control1..1
        BindingUnless not suitable, these codes SHALL be taken from Identifier Type Codes
        (extensible to http://hl7.org/fhir/ValueSet/identifier-type)

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

        TypeCodeableConcept
        Is Modifierfalse
        Summarytrue
        Requirements

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

        Pattern Value{
          "coding" : [{
            "system" : "http://terminology.hl7.org/CodeSystem/v2-0203",
            "code" : "NI"
          }]
        }
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        16. Identifier.system
        Definition

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

        ShortThe namespace for the identifier value
        Comments

        Identifier.system is always case sensitive.

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

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

        Fixed Valuehttp://ns.electronichealth.net.au/id/hi/ihi/1.0
        Example<br/><b>General</b>:http://www.acme.com/identifiers/patient
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        18. Identifier.value
        Definition

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

        ShortIHI
        Comments

        This concept is equivalent to Australian Institute of Health and Welfare data element 743458 Person—Individual Healthcare Identifier, N(16).

        Control1..1
        This element is affected by the following invariants: inv-ihi-0, inv-ihi-1, inv-ihi-2
        Typestring
        Is Modifierfalse
        Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
        Summarytrue
        Max Length16
        Example<br/><b>General</b>:123456 <br/><b>IHI</b>:8003608833357361
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        20. Identifier.period
        Definition

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

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

        Organization that issued/manages the identifier.

        ShortOrganization that issued id (may be just text)
        Comments

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

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