{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Indication of IV drug use .",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ObservationValue",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "HLSTAT"
  } ],
  "codesystem" : "ec013d25-2aca-5859-85ca-8417fa535d67",
  "concept_id" : "1111abe2-9b5d-5eb8-a220-19eedeb16147",
  "ancestors" : {
    "IVDRG" : 0,
    "HLSTAT" : 1,
    "_ActCoverageAssessmentObservationValue" : 2
  },
  "id" : "c1a13a11-722b-41e8-aaf9-d4b0662aea33",
  "code" : "IVDRG",
  "display" : "IV drug use",
  "version" : "2018-08-12"
}