description: This extension applies to the [Address](http://hl7.org/fhir/R4/datatypes.html#Address) data type and is used to represent an identifier for an address. An address identifier does not form part of the address itself, e.g. a street number. It is 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.
package_name: hl7.fhir.au.base
derivation: constraint
name: AddressIdentifier
type: Extension
elements:
  url:
    pattern: {type: Uri, value: 'http://hl7.org.au/fhir/StructureDefinition/address-identifier'}
    index: 0
  value:
    short: Address identifier
    choices: [valueIdentifier]
    index: 2
  valueIdentifier: {type: Identifier, short: Address identifier, choiceOf: value, index: 3}
package_version: 4.2.1-preview
class: extension
kind: complex-type
url: http://hl7.org.au/fhir/StructureDefinition/address-identifier
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 4.2.1-preview
required: [valueIdentifier, value]