{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0508",
  "property" : [ ],
  "codesystem" : "09285955-4213-5aff-ba78-a4ea4754e348",
  "concept_id" : "80515437-ecac-5ef0-abd7-3ca3d271efc9",
  "ancestors" : {
    "CM" : 0
  },
  "id" : "f79c2698-e5af-4ad7-94ff-58349bd64350",
  "code" : "CM",
  "display" : "CMV Negative",
  "version" : "2.9"
}