<status value="active" /> <experimental value="false" /> <description value="A version string indicating the currency/validity of an identifier" /> <fhirVersion value="5.0.0" /> <mapping> <identity value="BPCS" /> <name value="Internal BPCS API" /> </mapping> <kind value="complex-type" /> <abstract value="false" /> <context> <type value="element" /> <expression value="Identifier" /> </context> <type value="Extension" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" /> <derivation value="constraint" /> <differential> <element id="Extension"> <path value="Extension" /> <short value="Version for identifier" /> <definition value="A code indicating a specific version of an identifier credential" /> <comment value="For example, a health card version number, credit card version number, etc. Used to help verify the authenticity of a credential" /> <max value="1" /> </element> <element id="Extension.url"> <path value="Extension.url" /> <fixedUri value="http://hl7canada.ca/ig/baseline/StructureDefinition/ext-identifierversion" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <type> <code value="string" /> </type> <mustSupport value="true" /> </element> </differential> </StructureDefinition>