{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "A classification of a potentially harmful substance or gas in a subject's environment, such as asbestos, lead, or carcinogens",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "edcf6828-b2c8-5028-b7f7-246cb8d5ac80",
  "concept_id" : "f278b923-630d-5294-9eef-df72892bd054",
  "ancestors" : {
    "111548" : 0
  },
  "id" : "520df249-66c8-49fc-af82-09b147916e0d",
  "code" : "111548",
  "display" : "Environmental Factor",
  "version" : "01"
}