{

"resourceType": "CodeSystem",
"id": "allergy-intolerance-type",
"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": "trial-use"
  },
  {
    "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger": 3
  }
],
"url": "http://hl7.org/fhir/allergy-intolerance-type",
"identifier": [
  {
    "system": "urn:ietf:rfc:3986",
    "value": "urn:oid:2.16.840.1.113883.4.642.4.132"
  }
],
"version": "4.0.1",
"name": "AllergyIntoleranceType",
"title": "AllergyIntoleranceType",
"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": "Identification of the underlying physiological mechanism for a Reaction Risk.",
"caseSensitive": true,
"valueSet": "http://hl7.org/fhir/ValueSet/allergy-intolerance-type",
"content": "complete",
"concept": [
  {
    "code": "allergy",
    "display": "Allergy",
    "definition": "A propensity for hypersensitive reaction(s) to a substance.  These reactions are most typically type I hypersensitivity, plus other \"allergy-like\" reactions, including pseudoallergy."
  },
  {
    "code": "intolerance",
    "display": "Intolerance",
    "definition": "A propensity for adverse reactions to a substance that is not judged to be allergic or \"allergy-like\".  These reactions are typically (but not necessarily) non-immune.  They are to some degree idiosyncratic and/or patient-specific (i.e. are not a reaction that is expected to occur with most or all patients given similar circumstances)."
  }
]

}