<status value="active" /> <date value="2023-12-15" /> <publisher value="HL7 Canada - FHIR Implementation Work Group" /> <contact> <telecom> <system value="url" /> <value value="https://infocentral.infoway-inforoute.ca/en/collaboration/wg/fhir-implementations" /> </telecom> </contact> <description value="A version string indicating the currency/validity of an identifier" /> <jurisdiction> <coding> <system value="urn:iso:std:iso:3166" /> <code value="CA" /> </coding> </jurisdiction> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <context> <type value="element" /> <expression value="Patient.identifier" /> </context> <type value="Extension" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" /> <derivation value="constraint" /> <differential> <element id="Extension.extension"> <path value="Extension.extension" /> <max value="0" /> </element> <element id="Extension.url"> <path value="Extension.url" /> <fixedUri value="http://hl7.org/fhir/ca/baseline/StructureDefinition/ext-identifierversion" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <slicing> <discriminator> <type value="type" /> <path value="$this" /> </discriminator> <ordered value="false" /> <rules value="open" /> </slicing> <min value="1" /> </element> <element id="Extension.value[x]:valueString"> <path value="Extension.value[x]" /> <sliceName value="valueString" /> <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" /> <min value="1" /> <max value="1" /> <type> <code value="string" /> </type> <mustSupport value="true" /> </element> </differential> </StructureDefinition>