{description: A broad categorization of the service that is to be performed during this appointment, package_name: hl7.fhir.r4.examples, name: service-category, type: token, package_version: 4.0.1, class: unknown, kind: null, url: 'http://hl7.org/fhir/SearchParameter/Appointment-service-category', version: 4.0.1}