http://hl7.org/fhir/StructureDefinition/AllergyIntolerance|4.0.1

description: Risk of harmful or undesirable, physiological response which is unique to an individual and associated with exposure to a substance.
derivation: specialization
name: AllergyIntolerance
type: AllergyIntolerance
elements:
  patient: {short: Who the sensitivity is for, isSummary: true, index: 7}
  onset:
    short: When allergy or intolerance was identified
    choices: []
    index: 10
  category:
    short: food | medication | environment | biologic
    array: true
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergy-intolerance-category|4.0.1'}
    isSummary: true
    index: 4
  criticality:
    short: low | high | unable-to-assess
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergy-intolerance-criticality|4.0.1'}
    isSummary: true
    index: 5
  clinicalStatus:
    isModifier: true
    short: active | inactive | resolved
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergyintolerance-clinical|4.0.1'}
    isModifierReason: This element is labeled as a modifier because the status contains the codes inactive and resolved that mark the AllergyIntolerance as no longer active.
    isSummary: true
    index: 1
  encounter: {short: Encounter when the allergy or intolerance was asserted, index: 8}
  type:
    short: allergy | intolerance - Underlying mechanism (if known)
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergy-intolerance-type|4.0.1'}
    isSummary: true
    index: 3
  asserter: {short: Source of the information about the allergy, isSummary: true, index: 13}
  note: {short: Additional text not captured in other fields, array: true, index: 15}
  recordedDate: {short: Date first version of the resource instance was recorded, index: 11}
  recorder: {short: Who recorded the sensitivity, index: 12}
  code:
    short: Code that identifies the allergy or intolerance
    binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/allergyintolerance-code'}
    isSummary: true
    index: 6
  identifier: {short: External ids for this item, array: true, isSummary: true, index: 0}
  lastOccurrence: {short: Date(/time) of last known occurrence of a reaction, index: 14}
  verificationStatus:
    isModifier: true
    short: unconfirmed | confirmed | refuted | entered-in-error
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergyintolerance-verification|4.0.1'}
    isModifierReason: This element is labeled as a modifier because the status contains the codes refuted and entered-in-error that mark the AllergyIntolerance as not currently valid.
    isSummary: true
    index: 2
  reaction:
    short: Adverse Reaction Events linked to exposure to substance
    array: true
    index: 16
    elements:
      substance:
        short: Specific substance or pharmaceutical product considered to be responsible for event
        binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/substance-code'}
        index: 17
      manifestation:
        min: 1
        short: Clinical symptoms/signs associated with the Event
        array: true
        binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/clinical-findings'}
        index: 18
      description: {short: Description of the event as a whole, index: 19}
      onset: {short: Date(/time) when manifestations showed, index: 20}
      severity:
        short: mild | moderate | severe (of event as a whole)
        binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/reaction-event-severity|4.0.1'}
        index: 21
      exposureRoute:
        short: How the subject was exposed to the substance
        binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/route-codes'}
        index: 22
      note: {short: Text about event not captured in other fields, array: true, index: 23}
    required: [manifestation]
class: resource
kind: resource
url: http://hl7.org/fhir/StructureDefinition/AllergyIntolerance
base: http://hl7.org/fhir/StructureDefinition/DomainResource
version: 4.0.1
required: [patient]