{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0477",
  "property" : [ ],
  "codesystem" : "77452b0f-27bb-59f9-9aa2-bf05bd5077ec",
  "concept_id" : "0c12bbf3-476f-5889-8228-f7dbfd385505",
  "ancestors" : {
    "IV" : 0
  },
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments",
    "valueString" : "Includes drugs having a lesser potential for abuse than those listed in Schedule III. CS IV drugs have a currently accepted medical use in the United States."
  } ],
  "id" : "83703dc2-b8a4-4694-91e7-3af3b958748c",
  "code" : "IV",
  "display" : "Schedule IV",
  "version" : "2.9"
}