{
  "package" : "hl7.terminology.r4@6.3.0",
  "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://terminology.hl7.org/CodeSystem/reaction-event-certainty",
  "property" : [ ],
  "codesystem" : "6985d059-7d29-5989-b3b1-dbfd4a8dfb3e",
  "concept_id" : "27947e0a-b2cd-5454-a23f-bf06cc0a5685",
  "ancestors" : {
    "confirmed" : 0
  },
  "id" : "21c452ae-0eca-4186-be63-8e81ef59c53e",
  "code" : "confirmed",
  "display" : "Confirmed",
  "version" : "1.0.0"
}