description: This identifier profile defines Health Care Card number[[1]](https://www.servicesaustralia.gov.au/individuals/services/centrelink/health-care-card) in an Australian context. package_name: hl7.fhir.au.base derivation: constraint name: AUHealthCareCardNumber type: Identifier elements: type: pattern: type: CodeableConcept value: coding: - {code: HC, system: 'http://terminology.hl7.org/CodeSystem/v2-0203'} index: 0 system: pattern: {type: Uri, value: 'http://ns.electronichealth.net.au/id/centrelink-customer-reference-number'} index: 1 value: {short: Centrelink CRN as displayed on the Commonwealth Seniors Health Card, maxLength: 10, index: 2} package_version: 4.1.0-ballot class: complex-type kind: complex-type url: http://hl7.org.au/fhir/StructureDefinition/au-healthcarecardnumber base: http://hl7.org/fhir/StructureDefinition/Identifier version: 4.1.0-ballot required: [value, type, system]