{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Description:An actual value may exist, but it must be derived from the provided information (usually an EXPR generic data type extension will be used to convey the derivation expressionexpression .",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-NullFlavor",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "INV"
  } ],
  "codesystem" : "6f819d30-3400-5f76-8b7a-ac265f94fe3b",
  "concept_id" : "4b9930a3-4557-567c-9b0e-3f5ec06f36b8",
  "ancestors" : {
    "NI" : 2,
    "DER" : 0,
    "INV" : 1
  },
  "id" : "fd081774-d7f8-4b9b-95b2-8f4615bfc53c",
  "code" : "DER",
  "display" : "derived",
  "version" : "2018-08-12"
}