{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "A length of time.",
  "system" : "http://hl7.org/fhir/data-types",
  "property" : [ ],
  "codesystem" : "64d60637-8e29-560e-9b01-99cac280eb2d",
  "concept_id" : "3ea8727f-e134-5b7a-bd1c-2661184ffc3e",
  "ancestors" : {
    "Duration" : 0
  },
  "id" : "b2ad3581-b2b6-46c0-8db8-b630400accd1",
  "code" : "Duration",
  "display" : "Duration",
  "version" : "4.0.1"
}