{
  "resourceType": "CodeSystem",
  "id": "reaction-event-certainty",
  "meta": {
    "lastUpdated": "2017-04-18T21:44:43.294+00:00"
  },
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\">\n            <h2>AllergyIntoleranceCertainty</h2>\n            <div>\n              <p>Statement about the degree of clinical certainty that a specific substance was the cause of the manifestation in a reaction event.</p>\n\n            </div>\n            <p>This code system http://hl7.org/fhir/reaction-event-certainty defines the following codes:</p>\n            <table class=\"codes\">\n              <tr>\n                <td>\n                  <b>Code</b>\n                </td>\n                <td>\n                  <b>Display</b>\n                </td>\n                <td>\n                  <b>Definition</b>\n                </td>\n              </tr>\n              <tr>\n                <td>unlikely\n                  <a name=\"reaction-event-certainty-unlikely\"> </a>\n                </td>\n                <td>Unlikely</td>\n                <td>There is a low level of clinical certainty that the reaction was caused by the identified substance.</td>\n              </tr>\n              <tr>\n                <td>likely\n                  <a name=\"reaction-event-certainty-likely\"> </a>\n                </td>\n                <td>Likely</td>\n                <td>There is a high level of clinical certainty that the reaction was caused by the identified substance.</td>\n              </tr>\n              <tr>\n                <td>confirmed\n                  <a name=\"reaction-event-certainty-confirmed\"> </a>\n                </td>\n                <td>Confirmed</td>\n                <td>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.</td>\n              </tr>\n              <tr>\n                <td>unknown\n                  <a name=\"reaction-event-certainty-unknown\"> </a>\n                </td>\n                <td>Unknown</td>\n                <td>The clinical certainty that the reaction was caused by the identified substance is unknown.  It is an explicit assertion that certainty is not known.</td>\n              </tr>\n            </table>\n          </div>"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-ballot-status",
      "valueString": "Informative"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 0
    }
  ],
  "url": "http://hl7.org/fhir/reaction-event-certainty",
  "identifier": {
    "system": "urn:ietf:rfc:3986",
    "value": "urn:oid:2.16.840.1.113883.4.642.1.860"
  },
  "version": "3.0.1",
  "name": "AllergyIntoleranceCertainty",
  "status": "draft",
  "experimental": false,
  "date": "2017-04-18T21:44:43+00:00",
  "publisher": "HL7 (FHIR Project)",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/fhir"
        },
        {
          "system": "email",
          "value": "fhir@lists.hl7.org"
        }
      ]
    }
  ],
  "description": "Statement about the degree of clinical certainty that a specific substance was the cause of the manifestation in a reaction event.",
  "caseSensitive": true,
  "valueSet": "http://hl7.org/fhir/ValueSet/reaction-event-certainty",
  "content": "complete",
  "concept": [
    {
      "code": "unlikely",
      "display": "Unlikely",
      "definition": "There is a low level of clinical certainty that the reaction was caused by the identified substance."
    },
    {
      "code": "likely",
      "display": "Likely",
      "definition": "There is a high level of clinical certainty that the reaction was caused by the identified substance."
    },
    {
      "code": "confirmed",
      "display": "Confirmed",
      "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."
    },
    {
      "code": "unknown",
      "display": "Unknown",
      "definition": "The clinical certainty that the reaction was caused by the identified substance is unknown.  It is an explicit assertion that certainty is not known."
    }
  ]
}