Extensions for Using Data Elements from FHIR R4 in FHIR R4B
0.1.0 - STU
Extensions for Using Data Elements from FHIR R4 in FHIR R4B
0.1.0 - STU
Extensions for Using Data Elements from FHIR R4 in FHIR R4B - Downloaded Version null See the Directory of published versions
| Official URL: http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.code.comment | Version: 0.1.0 | |||
| Standards status: Trial-use | Maturity Level: 0 | Computable Name: ExtensionSubstanceSpecification_Code_Comment | ||
R4: SubstanceSpecification.code.comment (new:string)
This extension is part of the cross-version definitions generated to enable use of the
element SubstanceSpecification.code.comment as defined in FHIR R4
in FHIR R4B.
The source element is defined as:
SubstanceSpecification.code.comment 0..1 string
Following are the generation technical comments:
Element SubstanceSpecification.code.comment has a context of SubstanceDefinition.code based on following the parent source element upwards and mapping to SubstanceDefinition.
Element SubstanceSpecification.code.comment 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)
SubstanceDefinition.code
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) | R4: Any comment can be provided in this field, if necessary (new) | |
 url |
1..1 | uri | "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.code.comment" | |
  value[x] |
0..1 | string | Any comment can be provided in this field, if necessary | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension(4.3.0) | R4: Any comment can be provided in this field, if necessary (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/4.0/StructureDefinition/extension-SubstanceSpecification.code.comment" | |
| value[x] |
0..1 | string | Any comment can be provided in this field, if necessary | |
| 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) | R4: Any comment can be provided in this field, if necessary (new) | |
| url |
1..1 | uri | "http://hl7.org/fhir/4.0/StructureDefinition/extension-SubstanceSpecification.code.comment" | |
| value[x] |
0..1 | string | Any comment can be provided in this field, if necessary | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension(4.3.0) | R4: Any comment can be provided in this field, if necessary (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/4.0/StructureDefinition/extension-SubstanceSpecification.code.comment" | |
| value[x] |
0..1 | string | Any comment can be provided in this field, if necessary | |
| Documentation for this format | ||||
Other representations of profile: CSV, Excel, Schematron
| 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-r4.r4b#0.1.0 based on FHIR 4.3.0. Generated 2026-03-20
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