{
  "package" : "hl7.fhir.r4.examples@4.0.1",
  "definition" : "Sodium fluoride",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-EntityCode",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "_SpecimenAdditiveEntity"
  } ],
  "codesystem" : "6bc883d6-2592-5ee9-95de-32a833e8f6d0",
  "concept_id" : "b4a914a7-e8ff-5308-8c11-26683267c132",
  "ancestors" : {
    "NAF" : 0,
    "_SpecimenAdditiveEntity" : 1,
    "_MaterialEntityClassType" : 2
  },
  "id" : "84983459-289f-4fa1-aa64-ef5343ba3c41",
  "code" : "NAF",
  "display" : "Sodium Fluoride",
  "version" : "2018-08-12"
}