description: 'R5: `Appointment.account` (new:Reference(Account))' package_name: hl7.fhir.uv.xver-r5.r4 derivation: constraint name: ExtensionAppointment_Account type: Extension elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-Appointment.account'} index: 0 value: short: The set of accounts that may be used for billing for this Appointment choices: [valueReference] base: {max: '1', min: 0, path: 'Extension.value[x]'} index: 2 valueReference: short: The set of accounts that may be used for billing for this Appointment refers: ['http://hl7.org/fhir/5.0/StructureDefinition/profile-Account|0.1.0', 'http://hl7.org/fhir/StructureDefinition/Account|4.0.1'] type: Reference base: {max: '1', min: 0, path: 'Extension.value[x]'} choiceOf: value index: 3 package_version: 0.1.0 class: extension kind: complex-type url: http://hl7.org/fhir/5.0/StructureDefinition/extension-Appointment.account base: http://hl7.org/fhir/StructureDefinition/Extension|4.0.1 version: 0.1.0 required: [url]