Allergen Class Extension¶
| Canonical | ../StructureDefinition/nexus-allergen-class-extension |
|---|---|
| Status | draft · 1.26.0 |
| Base | Extension (constraint) |
| Context | AllergyIntolerance (element) |
| Source | FSH · JSON |
What kind of thing the recorded allergen is: a single drug, a drug class, a food, an environmental substance or a vaccine.
Elements / Key elements
The working view: must-support, required, modifier and sliced elements from the effective (snapshot) definition.
| Element | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
| Extension | 0..* | Allergen Class Extension Invariants: ele-1, ext-1 |
||
| url | 1..1 | http://hl7.org/fhirpath/System.String | identifies the meaning of the extension i Fixed: ../StructureDefinition/nexus-allergen-class-extension |
|
| value[x] | 1..1 | Coding | What kind of thing the allergen is Binding: Allergen Class Value Set ( required)e.g. drug · class · food …Invariants: ele-1 |