{
  "package" : "hl7.terminology.r4@6.3.0",
  "definition" : "The time post drug dose at which the lowest drug level is reached (varies with drug)",
  "system" : "http://terminology.hl7.org/CodeSystem/v2-0256",
  "property" : [ {
    "_uri" : "http://terminology.hl7.org/CodeSystem/utg-concept-properties#status",
    "code" : "status",
    "valueCode" : "A"
  } ],
  "codesystem" : "0ed9d8ba-4318-5ead-90af-b66f28489b0c",
  "concept_id" : "63d3b620-bac9-5858-97a6-8205466da7d2",
  "ancestors" : {
    "TROUGH" : 0
  },
  "id" : "41b78266-2343-4e54-ab82-1817e9ca1cde",
  "code" : "TROUGH",
  "display" : "The time post drug dose at which the lowest drug level is reached (varies with drug)",
  "version" : "2.0.0"
}