{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : null,
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0920",
  "property" : [ ],
  "codesystem" : "bfa97b35-0355-5a30-aa4b-2c44629e2cd4",
  "concept_id" : "903deafd-5400-5885-8d07-0d6fd6c5dbe7",
  "ancestors" : {
    "A" : 0
  },
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments",
    "valueString" : "This is a specimen that is acceptable as a replacement for a preferred specimen.  In the following field (OM4-17), the sequence number of the preferred specimen must be messaged."
  } ],
  "id" : "6e76774b-42ea-477c-ad33-526898a0b083",
  "code" : "A",
  "display" : "Alternate",
  "version" : "2.9"
}