description: Extension for flagging a HealthcareService.telecom as one the patient can use to make an appointment. package_name: hl7.fhir.us.sdoh-clinicalcare derivation: constraint name: SDOHCCExtensionHealthcareServiceTelecomAppointment type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/sdoh-clinicalcare/StructureDefinition/SDOHCC-ExtensionHealthcareServiceTelecomAppointment'} index: 1 value: pattern: {type: Boolean, value: true} choices: [valueBoolean] index: 3 valueBoolean: type: boolean pattern: {type: Boolean, value: true} choiceOf: value index: 4 package_version: 3.0.0-ballot extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/us/sdoh-clinicalcare/StructureDefinition/SDOHCC-ExtensionHealthcareServiceTelecomAppointment base: http://hl7.org/fhir/StructureDefinition/Extension version: 3.0.0-ballot required: [value, valueBoolean]