{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "The participant may optionally attend the appointment.",
  "system" : "http://hl7.org/fhir/participantrequired",
  "property" : [ ],
  "codesystem" : "512d4fd7-f27b-579a-a198-1e15d0ce872b",
  "concept_id" : "24f41ef7-be3c-50a7-8637-2d696710a877",
  "ancestors" : {
    "optional" : 0
  },
  "id" : "17cb4c0e-2ac7-4f3c-9f87-3823c6e744fc",
  "code" : "optional",
  "display" : "Optional",
  "version" : "4.0.1"
}