{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0489",
  "property" : [ ],
  "codesystem" : "7621aa3a-10bc-52b8-ad94-e4e17cc3993c",
  "concept_id" : "2028ca85-cbed-53cf-b156-f65bf49a38b1",
  "ancestors" : {
    "RAD" : 0
  },
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments",
    "valueString" : "Material is a source for ionizing radiation and must be handled with special care to avoid injury of those who handle it and to avoid environmental hazards."
  } ],
  "id" : "a6a10899-cd94-4a08-8abf-dc3d065169aa",
  "code" : "RAD",
  "display" : "Radioactive",
  "version" : "2.9"
}