{
  "package" : "hl7.fhir.uv.extensions@5.2.0",
  "definition" : "There is a very high level of clinical certainty that the reaction was due to the identified substance, which may include clinical evidence by testing or rechallenge.",
  "system" : "http://hl7.org/fhir/reaction-event-certainty",
  "property" : [ ],
  "codesystem" : "b254f4b0-223d-5908-a89e-04f5a0f3a0b9",
  "concept_id" : "27947e0a-b2cd-5454-a23f-bf06cc0a5685",
  "ancestors" : {
    "confirmed" : 0
  },
  "id" : "60bf9759-4863-4a8c-b876-c8644b93c29e",
  "code" : "confirmed",
  "display" : "Confirmed",
  "version" : "5.2.0"
}