{
  "resourceType": "CodeSystem",
  "id": "adverse-event-causality-assess",
  "meta": {
    "lastUpdated": "2019-11-01T09:29:23.356+11:00"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "pc"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
      "valueCode": "draft"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 1
    }
  ],
  "url": "http://terminology.hl7.org/CodeSystem/adverse-event-causality-assess",
  "identifier": [
    {
      "system": "urn:ietf:rfc:3986",
      "value": "urn:oid:2.16.840.1.113883.4.642.4.1254"
    }
  ],
  "version": "4.0.1",
  "name": "AdverseEventCausalityAssessment",
  "title": "AdverseEventCausalityAssessment",
  "status": "draft",
  "experimental": false,
  "date": "2019-11-01T09:29:23+11:00",
  "publisher": "HL7 (FHIR Project)",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/fhir"
        },
        {
          "system": "email",
          "value": "fhir@lists.hl7.org"
        }
      ]
    }
  ],
  "description": "Codes for the assessment of whether the entity caused the event.",
  "caseSensitive": true,
  "valueSet": "http://hl7.org/fhir/ValueSet/adverse-event-causality-assess",
  "content": "complete",
  "concept": [
    {
      "code": "Certain",
      "display": "Certain",
      "definition": "i) Event or laboratory test abnormality, with plausible time relationship to drug intake; ii) Cannot be explained by disease or other drugs; iii) Response to withdrawal plausible (pharmacologically, pathologically); iv) Event definitive pharmacologically or phenomenologically (i.e. an objective and specific medical disorder or a recognized pharmacological phenomenon); or v) Re-challenge satisfactory, if necessary."
    },
    {
      "code": "Probably-Likely",
      "display": "Probably/Likely",
      "definition": "i) Event or laboratory test abnormality, with reasonable time relationship to drug intake; ii) Unlikely to be attributed to disease or other drugs; iii) Response to withdrawal clinically reasonable; or iv) Re-challenge not required."
    },
    {
      "code": "Possible",
      "display": "Possible",
      "definition": "i) Event or laboratory test abnormality, with reasonable time relationship to drug intake; ii) Could also be explained by disease or other drugs; or iii) Information on drug withdrawal may be lacking or unclear."
    },
    {
      "code": "Unlikely",
      "display": "Unlikely",
      "definition": "i) Event or laboratory test abnormality, with a time to drug intake that makes a relationship improbable (but not impossible); or ii) Disease or other drugs provide plausible explanations."
    },
    {
      "code": "Conditional-Classified",
      "display": "Conditional/Classified",
      "definition": "i) Event or laboratory test abnormality; ii) More data for proper assessment needed; or iii) Additional data under examination."
    },
    {
      "code": "Unassessable-Unclassifiable",
      "display": "Unassessable/Unclassifiable",
      "definition": "i) Report suggesting an adverse reaction; ii) Cannot be judged because information is insufficient or contradictory; or iii) Data cannot be supplemented or verified."
    }
  ]
}