description: The details provided in this contact may be used according to the attached availability guidelines. package_name: hl7.fhir.uv.extensions.r3 derivation: constraint name: ExtendedContactAvailability type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/extended-contact-availability'} index: 1 value: choices: [valueAvailability] index: 3 valueAvailability: {type: Availability, choiceOf: value, index: 4} package_version: 5.2.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/extended-contact-availability base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.2.0 required: [valueAvailability, value]