Extensions for Using Data Elements from FHIR STU3 in FHIR R4B
0.1.0 - STU
Extensions for Using Data Elements from FHIR STU3 in FHIR R4B
0.1.0 - STU
Extensions for Using Data Elements from FHIR STU3 in FHIR R4B - Downloaded Version null See the Directory of published versions
| Official URL: http://hl7.org/fhir/3.0/StructureDefinition/extension-MessageDefinition.base | Version: 0.1.0 | |||
| Standards status: Trial-use | Maturity Level: 0 | Computable Name: ExtensionMessageDefinition_Base | ||
STU3: MessageDefinition.base additional types (Reference(http://hl7.org/fhir/StructureDefinition/MessageDefinition)) additional types from child elements (display, identifier, reference)
This extension is part of the cross-version definitions generated to enable use of the
element MessageDefinition.base as defined in FHIR STU3
in FHIR R4B.
The source element is defined as:
MessageDefinition.base 0..1 Reference(http://hl7.org/fhir/StructureDefinition/MessageDefinition)
Across FHIR versions, the element set has been mapped as:
MessageDefinition.base 0..1 Reference(http://hl7.org/fhir/StructureDefinition/MessageDefinition)MessageDefinition.base 0..1 canonical(http://hl7.org/fhir/StructureDefinition/MessageDefinition)MessageDefinition.base 0..1 canonical(http://hl7.org/fhir/StructureDefinition/MessageDefinition)Following are the generation technical comments:
Element MessageDefinition.base is mapped to FHIR R4B element MessageDefinition.base as SourceIsBroaderThanTarget.
The mappings for MessageDefinition.base do not cover the following types: Reference.
The mappings for MessageDefinition.base do not cover the following types based on type expansion: display, identifier, reference.
Context of Use
This extension may be used on the following element(s)
MessageDefinition.base
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) | STU3: base additional types | |
 url |
1..1 | uri | "http://hl7.org/fhir/3.0/StructureDefinition/extension-MessageDefinition.base" | |
  value[x] |
0..1 | Reference(Cross-version Profile for STU3.MessageDefinition for use in FHIR R4B(0.1.0) | MessageDefinition) | Definition this one is based on | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension(4.3.0) | STU3: base additional types 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/3.0/StructureDefinition/extension-MessageDefinition.base" | |
| value[x] |
0..1 | Reference(Cross-version Profile for STU3.MessageDefinition for use in FHIR R4B(0.1.0) | MessageDefinition) | Definition this one is based on | |
| 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) | STU3: base additional types | |
| url |
1..1 | uri | "http://hl7.org/fhir/3.0/StructureDefinition/extension-MessageDefinition.base" | |
| value[x] |
0..1 | Reference(Cross-version Profile for STU3.MessageDefinition for use in FHIR R4B(0.1.0) | MessageDefinition) | Definition this one is based on | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension(4.3.0) | STU3: base additional types 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/3.0/StructureDefinition/extension-MessageDefinition.base" | |
| value[x] |
0..1 | Reference(Cross-version Profile for STU3.MessageDefinition for use in FHIR R4B(0.1.0) | MessageDefinition) | Definition this one is based on | |
| 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-r3.r4b#0.1.0 based on FHIR 4.3.0. Generated 2026-03-20
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