HL7 Europe Base and Core FHIR IG, published by HL7 Europe. This guide is not an authorized publication; it is the continuous build for version 0.2.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7-eu/base/ and changes regularly. See the Directory of published versions
      This page describes the element-by-element mapping from the EHDSAllergyIntolerance logical model to the FHIR AllergyIntolerance profile in this Implementation Guide.
      
| EHDSAllergyIntolerance (Logical Model) | Relationship | AllergyIntolerance | |||
|---|---|---|---|---|---|
| Element | Description | Relation | Element | Description | Notes | 
| identifier | Identifier for the allergy/intolerance record. | equal | identifier | Business identifier for this record. | |
| clinicalStatus | Whether the allergy is active, inactive, resolved, etc. | equal | clinicalStatus | Clinical status of the allergy/intolerance. | CodeableConcept. | 
| verificationStatus | Confidence in the allergy being real (confirmed, refuted). | equal | verificationStatus | Verification status. | Important for data quality/safety. | 
| type | Distinction between allergy vs intolerance. | equal | type | Allergy | intolerance. | FHIR explicit discriminator. | 
| category | Food / medication / environment / biologic. | equal | category | Allergy category. | Repeats in FHIR. | 
| criticality | Estimated clinical criticality of future exposure. | equal | criticality | Criticality of the risk. | High / low / unable-to-assess. | 
| code | Substance or agent that triggers reaction. | equal | code | Allergen / agent. | CodeableConcept (e.g. drug, food protein). | 
| patient | Patient who has this allergy/intolerance. | equal | patient | Who the record concerns. | Reference to Patient/Animal Patient. | 
| onset[x] | When first identified. | equal | onset[x] | Approximate or exact onset. | FHIR supports multiple data types. | 
| reaction | Observed reactions, symptoms, adverse events. | equal | reaction | Details of each adverse reaction event. | Repeating; includes manifestation, severity, etc. | 
Return to overview: EHDS Logical Models → FHIR Profiles