Extensions for Using Data Elements from FHIR DSTU2 in FHIR R4B
0.1.0 - STU
Extensions for Using Data Elements from FHIR DSTU2 in FHIR R4B
0.1.0 - STU
Extensions for Using Data Elements from FHIR DSTU2 in FHIR R4B - Downloaded Version null See the Directory of published versions
| Official URL: http://hl7.org/fhir/1.0/StructureDefinition/extension-AllergyIntolerance.reaction.certainty | Version: 0.1.0 | |||
| Standards status: Trial-use | Maturity Level: 0 | Computable Name: ExtensionAllergyIntolerance_Reaction_Certainty | ||
DSTU2: AllergyIntolerance.reaction.certainty (new:code)
This extension is part of the cross-version definitions generated to enable use of the
element AllergyIntolerance.reaction.certainty as defined in FHIR DSTU2
in FHIR R4B.
The source element is defined as:
AllergyIntolerance.reaction.certainty 0..1 code
Across FHIR versions, the element set has been mapped as:
AllergyIntolerance.reaction.certainty 0..1 codeFollowing are the generation technical comments:
Element AllergyIntolerance.reaction.certainty has a context of AllergyIntolerance.reaction based on following the parent source element upwards and mapping to AllergyIntolerance.
Element AllergyIntolerance.reaction.certainty has no mapping targets in FHIR R4B. Typically, this is because the element has been added (is a new element).
Context of Use
This extension may be used on the following element(s)
AllergyIntolerance.reaction
This extension is allowed for use with FHIR versions R4B to R4B .
Usage info
Usages:
You can also check for usages in the FHIR IG Statistics
Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter:   |
|---|---|---|---|---|
  Extension |
0..1 | Extension(4.3.0) | DSTU2: unlikely | likely | confirmed - clinical certainty about the specific substance (new) | |
 url |
1..1 | uri | "http://hl7.org/fhir/1.0/StructureDefinition/extension-AllergyIntolerance.reaction.certainty" | |
  value[x] |
0..1 | code | unlikely | likely | confirmed - clinical certainty about the specific substance Binding: AllergyIntoleranceCertainty (required): Statement about the degree of clinical certainty that a Specific Substance was the cause of the Manifestation in an reaction event. | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension(4.3.0) | DSTU2: unlikely | likely | confirmed - clinical certainty about the specific substance (new) Constraints: ext-1 | |
| id |
0..1 | id | Unique id for inter-element referencing | |
 extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url Constraints: ext-1 | |
| url |
1..1 | uri | "http://hl7.org/fhir/1.0/StructureDefinition/extension-AllergyIntolerance.reaction.certainty" | |
| value[x] |
0..1 | code | unlikely | likely | confirmed - clinical certainty about the specific substance Binding: AllergyIntoleranceCertainty (required): Statement about the degree of clinical certainty that a Specific Substance was the cause of the Manifestation in an reaction event. | |
| Documentation for this format | ||||
Differential View
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension(4.3.0) | DSTU2: unlikely | likely | confirmed - clinical certainty about the specific substance (new) | |
| url |
1..1 | uri | "http://hl7.org/fhir/1.0/StructureDefinition/extension-AllergyIntolerance.reaction.certainty" | |
| value[x] |
0..1 | code | unlikely | likely | confirmed - clinical certainty about the specific substance Binding: AllergyIntoleranceCertainty (required): Statement about the degree of clinical certainty that a Specific Substance was the cause of the Manifestation in an reaction event. | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension(4.3.0) | DSTU2: unlikely | likely | confirmed - clinical certainty about the specific substance (new) Constraints: ext-1 | |
| id |
0..1 | id | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url Constraints: ext-1 | |
| url |
1..1 | uri | "http://hl7.org/fhir/1.0/StructureDefinition/extension-AllergyIntolerance.reaction.certainty" | |
| value[x] |
0..1 | code | unlikely | likely | confirmed - clinical certainty about the specific substance Binding: AllergyIntoleranceCertainty (required): Statement about the degree of clinical certainty that a Specific Substance was the cause of the Manifestation in an reaction event. | |
| Documentation for this format | ||||
Other representations of profile: CSV, Excel, Schematron
| Path | Status | Usage | ValueSet | Version | Source |
| Extension.value[x] | Base | required | AllergyIntoleranceCertainty | 📍4.3.0 | FHIR Std. |
| Id | Grade | Path(s) | Description | Expression |
| ele-1 | error | Extension, Extension.extension, Extension.value[x] | All FHIR elements must have a @value or children unless an empty Parameters resource |
hasValue() or (children().count() > id.count()) or $this is Parameters
|
| ext-1 | error | Extension, Extension.extension | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|
IG © 2025+ FHIR Infrastructure. Package hl7.fhir.uv.xver-r2.r4b#0.1.0 based on FHIR 4.3.0. Generated 2026-03-20
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