{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : "The quantity per unit of time that a medication or substance was or is being used",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "5f336dd4-db81-5653-939a-25648922f08e",
  "concept_id" : "e73ac3ee-3c97-55a4-9a26-7a9e0f9b1af9",
  "ancestors" : {
    "111580" : 0
  },
  "id" : "400a4812-58d8-48a1-88ec-45902e840aa9",
  "code" : "111580",
  "display" : "Volume of use",
  "version" : "01"
}