{
  "package" : "hl7.terminology.r4@6.3.0",
  "definition" : "The content is greater than zero, but too small to be quantified.",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-NullFlavor",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#status",
    "code" : "status",
    "valueCode" : "active"
  }, {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#v3-internal-id",
    "code" : "internalId",
    "valueCode" : "21386"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "subsumedBy",
    "valueCode" : "UNK"
  } ],
  "codesystem" : "5eb3a5ce-3bbe-502a-9a92-df1e7f903515",
  "concept_id" : "1111cfed-f5d6-5604-9046-399b68fccff1",
  "ancestors" : {
    "NI" : 2,
    "TRC" : 0,
    "UNK" : 1
  },
  "id" : "e6d591c7-5872-4969-9da6-fbca96f49951",
  "code" : "TRC",
  "display" : "trace",
  "version" : "3.0.0"
}