Structure
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
 AllergyIntolerance | DomainResource | Allergy or Intolerance (generally: Risk Of Adverse reaction to a substance) | ||
  identifier | Σ | 0..* | Identifier | External ids for this item |
 onset | Σ | 0..1 | dateTime | Date(/time) when manifestations showed |
| recordedDate | Σ | 0..1 | dateTime | When recorded |
 recorder | Σ | 0..1 | Reference(Practitioner | Patient) | Who recorded the sensitivity |
| patient | Σ | 1..1 | Reference(Patient) | Who the sensitivity is for |
| reporter | Σ | 0..1 | Reference(Patient | RelatedPerson | Practitioner) | Source of the information about the allergy |
| substance | Σ | 1..1 | CodeableConcept | Substance, (or class) considered to be responsible for risk AllergyIntolerance Substance and Negation Codes (Example) |
| status | ?! Σ | 0..1 | code | active | unconfirmed | confirmed | inactive | resolved | refuted | entered-in-error AllergyIntoleranceStatus (Required) |
| criticality | Σ | 0..1 | code | CRITL | CRITH | CRITU AllergyIntoleranceCriticality (Required) |
| type | Σ | 0..1 | code | allergy | intolerance - Underlying mechanism (if known) AllergyIntoleranceType (Required) |
| category | Σ | 0..1 | code | food | medication | environment | other - Category of Substance AllergyIntoleranceCategory (Required) |
| lastOccurence | Σ | 0..1 | dateTime | Date(/time) of last known occurrence of a reaction |
| note | 0..1 | Annotation | Additional text not captured in other fields | |
  reaction | 0..* | BackboneElement | Adverse Reaction Events linked to exposure to substance | |
 substance | Σ | 0..1 | CodeableConcept | Specific substance considered to be responsible for event Substance Code (Example) |
| certainty | Σ | 0..1 | code | unlikely | likely | confirmed - clinical certainty about the specific substance AllergyIntoleranceCertainty (Required) |
| manifestation | Σ | 1..* | CodeableConcept | Clinical symptoms/signs associated with the Event SNOMED CT Clinical Findings (Example) |
| description | 0..1 | string | Description of the event as a whole | |
| onset | Σ | 0..1 | dateTime | Date(/time) when manifestations showed |
| severity | Σ | 0..1 | code | mild | moderate | severe (of event as a whole) AllergyIntoleranceSeverity (Required) |
| exposureRoute | Σ | 0..1 | CodeableConcept | How the subject was exposed to the substance SNOMED CT Route Codes (Example) |
| note | 0..1 | Annotation | Text about event not captured in other fields | |
| Documentation for this format | ||||