AllergyIntolerance Profile¶
| Canonical | ../StructureDefinition/nexus-emr-core-allergyintolerance |
|---|---|
| Status | draft · 1.26.0 |
| Base | AllergyIntolerance (constraint) |
| Source | FSH · JSON |
Defines the Nexus EMR standard for AllergyIntolerance resources, based on CA-Core+. Includes instance-specific Nexus EMR identifiers, references via identifier (CII E01).
Overview
Overview
The Nexus EMR Core AllergyIntolerance profile represents patient allergies, intolerances, and adverse reactions within primary care EMR systems. This profile establishes the foundational requirements for documenting and tracking allergies across the Nexus EMR ecosystem, supporting clinical decision support and patient safety initiatives.
Key Features
- Flexible Allergen Coding: Supports standard terminology (SNOMED CT for any allergen; CCDD or ATC for a drug allergen, which is what makes it matchable against a medication) and source EMR codes
- Clinical Status Tracking: Distinguishes active, inactive, and resolved allergies
- Encounter Context: Optional linkage to the encounter where allergy was documented
- Raw Code Preservation: Maintains original EMR codes alongside standard terminology
Clinical Importance
Accurate allergy documentation is critical for:
- Medication safety and prescribing decisions
- Clinical decision support alerts
- Care transitions and information exchange
- Emergency care scenarios
Terminology bindings
| Path | Strength | Value set |
|---|---|---|
AllergyIntolerance.clinicalStatus |
required | allergyintolerance-clinical |