description: An assigned sequence code, uniquely identifying a Health Card issued (or potentially issued) to a Registered Person package_name: eReferralOntarioNew.core derivation: constraint name: HCNVersionCode type: Extension elements: value: choices: [valueString, valueUrl] index: 1 valueString: {type: string, choiceOf: value, index: 2} valueUrl: {type: url, choiceOf: value, index: 3} package_version: 0.10.0 class: extension kind: complex-type url: http://ehealthontario.ca/fhir/StructureDefinition/ext-id-health-card-version-code base: http://hl7.org/fhir/StructureDefinition/Extension version: null