{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "A qualitative descriptor for the frequency of present or past exposure to an environmental irritant",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "edcf6828-b2c8-5028-b7f7-246cb8d5ac80",
  "concept_id" : "5ee2b218-3366-5458-837b-cd25307712cf",
  "ancestors" : {
    "111585" : 0
  },
  "id" : "31d34e2a-0c3b-4496-827d-030221f525ec",
  "code" : "111585",
  "display" : "Relative frequency of exposure",
  "version" : "01"
}