description: Risk of harmful or undesirable, physiological response which is unique to an individual and associated with exposure to a substance.
package_name: hl7.fhir.r5.core
derivation: specialization
name: AllergyIntolerance
type: AllergyIntolerance
elements:
  patient:
    isModifier: false
    short: Who the allergy or intolerance is for
    refers: ['http://hl7.org/fhir/StructureDefinition/Patient']
    type: Reference
    mustSupport: false
    isSummary: true
    index: 7
  onset:
    isModifier: false
    short: When allergy or intolerance was identified
    mustSupport: false
    choices: [onsetDateTime, onsetAge, onsetPeriod, onsetRange, onsetString]
    isSummary: false
    index: 10
  category:
    isModifier: false
    short: food | medication | environment | biologic
    type: code
    mustSupport: false
    array: true
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergy-intolerance-category|5.0.0-draft-final'}
    isSummary: true
    index: 4
  criticality:
    isModifier: false
    short: low | high | unable-to-assess
    type: code
    mustSupport: false
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergy-intolerance-criticality|5.0.0-draft-final'}
    isSummary: true
    index: 5
  clinicalStatus:
    isModifier: true
    short: active | inactive | resolved
    type: CodeableConcept
    mustSupport: false
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergyintolerance-clinical|5.0.0-draft-final'}
    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labeled as a modifier because the status contains the codes inactive and resolved that mark the AllergyIntolerance as no longer active.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
  onsetRange: {isModifier: false, short: When allergy or intolerance was identified, type: Range, mustSupport: false, choiceOf: onset, isSummary: false, index: 14}
  onsetAge: {isModifier: false, short: When allergy or intolerance was identified, type: Age, mustSupport: false, choiceOf: onset, isSummary: false, index: 12}
  encounter:
    isModifier: false
    short: Encounter when the allergy or intolerance was asserted
    refers: ['http://hl7.org/fhir/StructureDefinition/Encounter']
    type: Reference
    mustSupport: false
    isSummary: false
    index: 8
  onsetPeriod: {isModifier: false, short: When allergy or intolerance was identified, type: Period, mustSupport: false, choiceOf: onset, isSummary: false, index: 13}
  type:
    isModifier: false
    short: allergy | intolerance - Underlying mechanism (if known)
    type: CodeableConcept
    mustSupport: false
    binding: {strength: preferred, valueSet: 'http://hl7.org/fhir/ValueSet/allergy-intolerance-type'}
    isSummary: true
    index: 3
  participant:
    isModifier: false
    short: Who or what participated in the activities related to the allergy or intolerance and how they were involved
    index: 17
    type: BackboneElement
    mustSupport: false
    array: true
    elements:
      function:
        isModifier: false
        short: Type of involvement
        type: CodeableConcept
        mustSupport: false
        binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/participation-role-type'}
        isSummary: true
        index: 18
      actor:
        isModifier: false
        short: Who or what participated in the activities related to the allergy or intolerance
        refers: ['http://hl7.org/fhir/StructureDefinition/CareTeam', 'http://hl7.org/fhir/StructureDefinition/Device', 'http://hl7.org/fhir/StructureDefinition/Organization', 'http://hl7.org/fhir/StructureDefinition/Patient', 'http://hl7.org/fhir/StructureDefinition/Practitioner', 'http://hl7.org/fhir/StructureDefinition/PractitionerRole', 'http://hl7.org/fhir/StructureDefinition/RelatedPerson']
        type: Reference
        mustSupport: false
        isSummary: true
        index: 19
    required: [actor]
    isSummary: true
  note: {isModifier: false, short: Additional text not captured in other fields, type: Annotation, mustSupport: false, array: true, isSummary: false, index: 21}
  recordedDate: {isModifier: false, short: Date allergy or intolerance was first recorded, type: dateTime, mustSupport: false, isSummary: false, index: 16}
  onsetString: {isModifier: false, short: When allergy or intolerance was identified, type: string, mustSupport: false, choiceOf: onset, isSummary: false, index: 15}
  code:
    isModifier: false
    short: Code that identifies the allergy or intolerance
    type: CodeableConcept
    mustSupport: false
    binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/allergyintolerance-code'}
    isSummary: true
    index: 6
  identifier: {isModifier: false, short: External ids for this item, type: Identifier, mustSupport: false, array: true, isSummary: true, index: 0}
  onsetDateTime: {isModifier: false, short: When allergy or intolerance was identified, type: dateTime, mustSupport: false, choiceOf: onset, isSummary: false, index: 11}
  lastOccurrence: {isModifier: false, short: Date(/time) of last known occurrence of a reaction, type: dateTime, mustSupport: false, isSummary: false, index: 20}
  verificationStatus:
    isModifier: true
    short: unconfirmed | presumed | confirmed | refuted | entered-in-error
    type: CodeableConcept
    mustSupport: false
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/allergyintolerance-verification|5.0.0-draft-final'}
    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:
    isModifier: false
    short: Adverse Reaction Events linked to exposure to substance
    index: 22
    type: BackboneElement
    mustSupport: false
    array: true
    elements:
      substance:
        isModifier: false
        short: Specific substance or pharmaceutical product considered to be responsible for event
        type: CodeableConcept
        mustSupport: false
        binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/substance-code'}
        isSummary: false
        index: 23
      manifestation:
        min: 1
        isModifier: false
        short: Clinical symptoms/signs associated with the Event
        index: 24
        type: CodeableReference
        mustSupport: false
        array: true
        binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/clinical-findings'}
        isSummary: false
      description: {isModifier: false, short: Description of the event as a whole, type: string, mustSupport: false, isSummary: false, index: 25}
      onset: {isModifier: false, short: Date(/time) when manifestations showed, type: dateTime, mustSupport: false, isSummary: false, index: 26}
      severity:
        isModifier: false
        short: mild | moderate | severe (of event as a whole)
        type: code
        mustSupport: false
        binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/reaction-event-severity|5.0.0-draft-final'}
        isSummary: false
        index: 27
      exposureRoute:
        isModifier: false
        short: How the subject was exposed to the substance
        type: CodeableConcept
        mustSupport: false
        binding: {strength: example, valueSet: 'http://hl7.org/fhir/ValueSet/route-codes'}
        isSummary: false
        index: 28
      note: {isModifier: false, short: Text about event not captured in other fields, type: Annotation, mustSupport: false, array: true, isSummary: false, index: 29}
    required: [manifestation]
    isSummary: false
package_version: 5.0.0-draft-final
class: resource
kind: resource
url: http://hl7.org/fhir/StructureDefinition/AllergyIntolerance
base: http://hl7.org/fhir/StructureDefinition/DomainResource
version: 5.0.0-draft-final
required: [patient]