description: This profile specifies extensions and constraints on the Appointment resource to support coverage requirements discovery. package_name: hl7.fhir.us.davinci-crd derivation: constraint name: CRDAppointmentBase abstract: true type: Appointment elements: status: {short: Appointment status, mustSupport: true, index: 0} start: {mustSupport: true, index: 1} end: {mustSupport: true, index: 2} participant: mustSupport: true index: 3 elements: actor: type: Reference short: Patient, Practitioner or Location mustSupport: true refers: ['http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitioner', 'http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitionerrole', 'http://hl7.org/fhir/us/davinci-crd/StructureDefinition/profile-location', 'http://hl7.org/fhir/us/davinci-crd/StructureDefinition/profile-patient'] index: 4 status: {mustSupport: true, index: 5} requestedPeriod: {mustSupport: true, index: 6} package_version: 2.1.0-preview class: profile kind: resource url: http://hl7.org/fhir/us/davinci-crd/StructureDefinition/profile-appointment-base base: http://hl7.org/fhir/StructureDefinition/Appointment version: 2.1.0-preview