{
  "package" : "hl7.terminology.r5@6.3.0",
  "definition" : "**Definition:**The event occurred so that a test or observation performed at a prior event could be performed again due to conditions set forth in the protocol.",
  "system" : "http://terminology.hl7.org/CodeSystem/v3-ActReason",
  "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" : "21623"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "subsumedBy",
    "valueCode" : "_ClinicalResearchEventReason"
  } ],
  "codesystem" : "4adb0864-50e2-5536-85c6-525facd8b85b",
  "concept_id" : "815f401a-39b7-5a32-a6ed-3d03d42f46ff",
  "ancestors" : {
    "RET" : 0,
    "_ClinicalResearchEventReason" : 1
  },
  "id" : "d7ff29b8-e21f-4618-9116-502be62405aa",
  "code" : "RET",
  "display" : "retest",
  "version" : "3.1.0"
}