AU Base Implementation Guide
4.2.2-ci-build - CI Build Australia flag

AU Base Implementation Guide, published by HL7 Australia. This guide is not an authorized publication; it is the continuous build for version 4.2.2-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: AustralianAddress - Detailed Descriptions

Page standards status: Trial-use Maturity Level: 2

Definitions for the au-address data type profile.

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

0. Address
Definition

An Australian address expressed using postal conventions (as opposed to GPS or other location definition formats).

ShortAn address in Australia for use within an Australian healthcare context
Invariantsinv-add-0: The address shall at least have text or a line (text.exists() or line.exists())
inv-add-1: If asserting no fixed address, the type shall be 'physical' (extension('http://hl7.org.au/fhir/StructureDefinition/no-fixed-address').exists() implies type='physical')
inv-add-2: If asserting no fixed address, the address text shall begin with 'NO FIXED ADDRESS' (extension('http://hl7.org.au/fhir/StructureDefinition/no-fixed-address').exists() implies text.startsWith('NO FIXED ADDRESS'))
2. Address.extension
SlicingThis element introduces a set of slices on Address.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 4. Address.extension:identifier
    Slice Nameidentifier
    TypeExtension(Address Identifier) (Extension Type: Identifier(Identifier))
    6. Address.extension:identifier.value[x]
    TypeIdentifier(Identifier, AU Delivery Point Identifier, AU G-NAF Identifier)
    [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
    8. Address.extension:noFixedAddress
    Slice NamenoFixedAddress
    Control0..1
    This element is affected by the following invariants: inv-add-1, inv-add-2
    TypeExtension(No Fixed Address) (Extension Type: boolean)
    10. Address.type
    12. Address.text
    14. Address.line
    16. Address.city
    ShortName of city, town or suburb
    18. Address.state
    ShortAustralian state or territory
    BindingThe codes SHALL be taken from Australian States and Territories .
    (required to https://healthterminologies.gov.au/fhir/ValueSet/australian-states-territories-2)
    20. Address.postalCode
    Invariantsinv-add-3: Postal code shall be 4 digits (matches('^[0-9]{4}$'))
    22. Address.country
    Definition

    Fixed value if present otherwise assumed to be Australia in this context.

    ShortAustralia as a 2 digit ISO 3166 code
    Fixed ValueAU

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

    0. Address
    Definition

    An Australian address expressed using postal conventions (as opposed to GPS or other location definition formats).


    An address expressed using postal conventions (as opposed to GPS or other location definition formats). This data type may be used to convey addresses for use in delivering mail as well as for visiting locations which might not be valid for mail delivery. There are a variety of postal address formats defined around the world.

    ShortAn address in Australia for use within an Australian healthcare contextAn address expressed using postal conventions (as opposed to GPS or other location definition formats)
    Comments

    Note: address is intended to describe postal addresses for administrative purposes, not to describe absolute geographical coordinates. Postal addresses are often used as proxies for physical locations (also see the Location resource).


    Note: address is intended to describe postal addresses for administrative purposes, not to describe absolute geographical coordinates. Postal addresses are often used as proxies for physical locations (also see the Location resource).

    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-add-0: The address shall at least have text or a line (text.exists() or line.exists())
    inv-add-1: If asserting no fixed address, the type shall be 'physical' (extension('http://hl7.org.au/fhir/StructureDefinition/no-fixed-address').exists() implies type='physical')
    inv-add-2: If asserting no fixed address, the address text shall begin with 'NO FIXED ADDRESS' (extension('http://hl7.org.au/fhir/StructureDefinition/no-fixed-address').exists() implies text.startsWith('NO FIXED ADDRESS'))
    2. Address.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 Address.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 4. Address.extension:identifier
      Slice Nameidentifier
      Definition

      A unique identifier associated with a location address and may be used to look up an address, validate an address, or link to other data relating to an address.

      ShortIdentifier for the address
      Control0..*
      TypeExtension(Address Identifier) (Extension Type: Identifier(Identifier))
      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. Address.extension:identifier.url
      Definition

      Source of the definition for the extension code - a logical name or a URL.

      Shortidentifies the meaning of the extension
      Comments

      The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

      Control1..1
      Typeuri
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      Fixed Valuehttp://hl7.org.au/fhir/StructureDefinition/address-identifier
      8. Address.extension:identifier.value[x]
      Definition

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


      Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

      ShortAddress identifierValue of extension
      Control10..1
      This element is affected by the following invariants: ele-1
      TypeIdentifier(Identifier, AU Delivery Point Identifier, AU G-NAF Identifier), date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Coding, SampledData, id, positiveInt, Distance, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, CodeableConcept, ParameterDefinition, dateTime, code, string, Contributor, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, Signature, unsignedInt, time
      [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      10. Address.extension:noFixedAddress
      Slice NamenoFixedAddress
      Definition

      No fixed address indicator.

      ShortNo fixed address indicator
      Control0..1
      This element is affected by the following invariants: inv-add-1, inv-add-2
      TypeExtension(No Fixed Address) (Extension Type: boolean)
      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. Address.use
      Definition

      The purpose of this address.

      Shorthome | work | temp | old | billing - purpose of this address
      Comments

      Applications can assume that an address is current unless it explicitly says that it is temporary or old.

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

      The use of an address.

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

      Allows an appropriate address to be chosen from a list of many.

      Example<br/><b>General</b>:home
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      14. Address.type
      Definition

      Distinguishes between physical addresses (those you can visit) and mailing addresses (e.g. PO Boxes and care-of addresses). Most addresses are both.

      Shortpostal | physical | both
      Comments

      The definition of Address states that "address is intended to describe postal addresses, not physical locations". However, many applications track whether an address has a dual purpose of being a location that can be visited as well as being a valid delivery destination, and Postal addresses are often used as proxies for physical locations (also see the Location resource).


      The definition of Address states that "address is intended to describe postal addresses, not physical locations". However, many applications track whether an address has a dual purpose of being a location that can be visited as well as being a valid delivery destination, and Postal addresses are often used as proxies for physical locations (also see the Location resource).

      Control0..1
      This element is affected by the following invariants: inv-add-1
      BindingThe codes SHALL be taken from AddressTypehttp://hl7.org/fhir/ValueSet/address-type|4.0.1
      (required to http://hl7.org/fhir/ValueSet/address-type|4.0.1)

      The type of an address (physical / postal).

      Typecode
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Example<br/><b>General</b>:both
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      16. Address.text
      Definition

      Specifies the entire address as it should be displayed e.g. on a postal label. This may be provided instead of or as well as the specific parts.

      ShortText representation of the address
      Comments

      Can provide both a text representation and parts. Applications updating an address SHALL ensure that when both text and parts are present, no content is included in the text that isn't found in a part.

      Control0..1
      This element is affected by the following invariants: inv-add-0, inv-add-2
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Requirements

      A renderable, unencoded form.

      Example<br/><b>General</b>:137 Nowhere Street, Erewhon 9132
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      18. Address.line
      Definition

      This component contains the house number, apartment number, street name, street direction, P.O. Box number, delivery hints, and similar address information.

      ShortStreet name, number, direction & P.O. Box etc.
      Control0..*
      This element is affected by the following invariants: inv-add-0
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Example<br/><b>General</b>:137 Nowhere Street
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      20. Address.city
      Definition

      The name of the city, town, suburb, village or other community or delivery center.

      ShortName of city, town or suburbName of city, town etc.
      Control0..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Alternate NamesMunicpality
      Example<br/><b>General</b>:Erewhon
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      22. Address.state
      Definition

      Sub-unit of a country with limited sovereignty in a federally organized country. A code may be used if codes are in common use (e.g. US 2 letter state codes).

      ShortAustralian state or territorySub-unit of country (abbreviations ok)
      Control0..1
      BindingThe codes SHALL be taken from For codes, see Australian States and Territories .
      (required to https://healthterminologies.gov.au/fhir/ValueSet/australian-states-territories-2)
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Alternate NamesProvince, Territory
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      24. Address.postalCode
      Definition

      A postal code designating a region defined by the postal service.

      ShortPostal code for area
      Control0..1
      This element is affected by the following invariants: inv-add-3
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Alternate NamesZip
      Example<br/><b>General</b>:9132
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      inv-add-3: Postal code shall be 4 digits (matches('^[0-9]{4}$'))
      26. Address.country
      Definition

      Fixed value if present otherwise assumed to be Australia in this context.


      Country - a nation as commonly understood or generally accepted.

      ShortAustralia as a 2 digit ISO 3166 codeCountry (e.g. can be ISO 3166 2 or 3 letter code)
      Comments

      ISO 3166 3 letter codes can be used in place of a human readable country name.

      Control0..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Fixed ValueAU
      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. Address
      Definition

      An Australian address expressed using postal conventions (as opposed to GPS or other location definition formats).

      ShortAn address in Australia for use within an Australian healthcare context
      Comments

      Note: address is intended to describe postal addresses for administrative purposes, not to describe absolute geographical coordinates. Postal addresses are often used as proxies for physical locations (also see the Location resource).

      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-add-0: The address shall at least have text or a line (text.exists() or line.exists())
      inv-add-1: If asserting no fixed address, the type shall be 'physical' (extension('http://hl7.org.au/fhir/StructureDefinition/no-fixed-address').exists() implies type='physical')
      inv-add-2: If asserting no fixed address, the address text shall begin with 'NO FIXED ADDRESS' (extension('http://hl7.org.au/fhir/StructureDefinition/no-fixed-address').exists() implies text.startsWith('NO FIXED ADDRESS'))
      2. Address.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. Address.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 Address.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 6. Address.extension:identifier
        Slice Nameidentifier
        Definition

        A unique identifier associated with a location address and may be used to look up an address, validate an address, or link to other data relating to an address.

        ShortIdentifier for the address
        Control0..*
        TypeExtension(Address Identifier) (Extension Type: Identifier(Identifier))
        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. Address.extension: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
        10. Address.extension:identifier.extension
        Definition

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

        ShortAdditional content defined by implementations
        Comments

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

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

          Source of the definition for the extension code - a logical name or a URL.

          Shortidentifies the meaning of the extension
          Comments

          The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

          Control1..1
          Typeuri
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          Fixed Valuehttp://hl7.org.au/fhir/StructureDefinition/address-identifier
          14. Address.extension:identifier.value[x]
          Definition

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

          ShortAddress identifier
          Control1..1
          This element is affected by the following invariants: ele-1
          TypeIdentifier(Identifier, AU Delivery Point Identifier, AU G-NAF Identifier)
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          16. Address.extension:noFixedAddress
          Slice NamenoFixedAddress
          Definition

          No fixed address indicator.

          ShortNo fixed address indicator
          Control0..1
          This element is affected by the following invariants: inv-add-1, inv-add-2
          TypeExtension(No Fixed Address) (Extension Type: boolean)
          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())
          18. Address.use
          Definition

          The purpose of this address.

          Shorthome | work | temp | old | billing - purpose of this address
          Comments

          Applications can assume that an address is current unless it explicitly says that it is temporary or old.

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

          The use of an address.

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

          Allows an appropriate address to be chosen from a list of many.

          Example<br/><b>General</b>:home
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          20. Address.type
          Definition

          Distinguishes between physical addresses (those you can visit) and mailing addresses (e.g. PO Boxes and care-of addresses). Most addresses are both.

          Shortpostal | physical | both
          Comments

          The definition of Address states that "address is intended to describe postal addresses, not physical locations". However, many applications track whether an address has a dual purpose of being a location that can be visited as well as being a valid delivery destination, and Postal addresses are often used as proxies for physical locations (also see the Location resource).

          Control0..1
          This element is affected by the following invariants: inv-add-1
          BindingThe codes SHALL be taken from AddressType
          (required to http://hl7.org/fhir/ValueSet/address-type|4.0.1)

          The type of an address (physical / postal).

          Typecode
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Example<br/><b>General</b>:both
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          22. Address.text
          Definition

          Specifies the entire address as it should be displayed e.g. on a postal label. This may be provided instead of or as well as the specific parts.

          ShortText representation of the address
          Comments

          Can provide both a text representation and parts. Applications updating an address SHALL ensure that when both text and parts are present, no content is included in the text that isn't found in a part.

          Control0..1
          This element is affected by the following invariants: inv-add-0, inv-add-2
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Requirements

          A renderable, unencoded form.

          Example<br/><b>General</b>:137 Nowhere Street, Erewhon 9132
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          24. Address.line
          Definition

          This component contains the house number, apartment number, street name, street direction, P.O. Box number, delivery hints, and similar address information.

          ShortStreet name, number, direction & P.O. Box etc.
          Control0..*
          This element is affected by the following invariants: inv-add-0
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Example<br/><b>General</b>:137 Nowhere Street
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          26. Address.city
          Definition

          The name of the city, town, suburb, village or other community or delivery center.

          ShortName of city, town or suburb
          Control0..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Alternate NamesMunicpality
          Example<br/><b>General</b>:Erewhon
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          28. Address.district
          Definition

          The name of the administrative area (county).

          ShortDistrict name (aka county)
          Comments

          District is sometimes known as county, but in some regions 'county' is used in place of city (municipality), so county name should be conveyed in city instead.

          Control0..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Alternate NamesCounty
          Example<br/><b>General</b>:Madison
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          30. Address.state
          Definition

          Sub-unit of a country with limited sovereignty in a federally organized country. A code may be used if codes are in common use (e.g. US 2 letter state codes).

          ShortAustralian state or territory
          Control0..1
          BindingThe codes SHALL be taken from Australian States and Territories .
          (required to https://healthterminologies.gov.au/fhir/ValueSet/australian-states-territories-2)
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Alternate NamesProvince, Territory
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          32. Address.postalCode
          Definition

          A postal code designating a region defined by the postal service.

          ShortPostal code for area
          Control0..1
          This element is affected by the following invariants: inv-add-3
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Alternate NamesZip
          Example<br/><b>General</b>:9132
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          inv-add-3: Postal code shall be 4 digits (matches('^[0-9]{4}$'))
          34. Address.country
          Definition

          Fixed value if present otherwise assumed to be Australia in this context.

          ShortAustralia as a 2 digit ISO 3166 code
          Comments

          ISO 3166 3 letter codes can be used in place of a human readable country name.

          Control0..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summarytrue
          Fixed ValueAU
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          36. Address.period
          Definition

          Time period when address was/is in use.

          ShortTime period when address was/is in use
          Control0..1
          TypePeriod
          Is Modifierfalse
          Summarytrue
          Requirements

          Allows addresses to be placed in historical context.

          Example<br/><b>General</b>:{ "start" : "2010-03-23", "end" : "2010-07-01" }
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))