Extensions for Using Data Elements from FHIR R5 in FHIR R4
0.1.0 - STU
Extensions for Using Data Elements from FHIR R5 in FHIR R4
0.1.0 - STU
Extensions for Using Data Elements from FHIR R5 in FHIR R4 - Downloaded Version null See the Directory of published versions
| Official URL: http://hl7.org/fhir/5.0/StructureDefinition/extension-SubstanceDefinition.relationship.comparator | Version: 0.1.0 | |||
| Standards status: Trial-use | Maturity Level: 0 | Computable Name: ExtensionSubstanceDefinition_Relationship_Comparator | ||
R5: SubstanceDefinition.relationship.comparator (new:CodeableConcept)
This extension is part of the cross-version definitions generated to enable use of the
element SubstanceDefinition.relationship.comparator as defined in FHIR R5
in FHIR R4.
The source element is defined as:
SubstanceDefinition.relationship.comparator 0..1 CodeableConcept
Across FHIR versions, the element set has been mapped as:
SubstanceDefinition.relationship.comparator 0..1 CodeableConceptSubstanceDefinition.relationship.comparator 0..1 CodeableConceptFollowing are the generation technical comments:
Element SubstanceDefinition.relationship.comparator has a context of SubstanceSpecification.relationship based on following the parent source element upwards and mapping to SubstanceSpecification.
Element SubstanceDefinition.relationship.comparator has no mapping targets in FHIR R4. 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)
SubstanceSpecification.relationship
This extension is allowed for use with FHIR versions R4 to R4 .
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(4.0.1) | R5: An operator for the amount, for example "average", "approximately", "less than" (new) | |
 url |
1..1 | uri | "http://hl7.org/fhir/5.0/StructureDefinition/extension-SubstanceDefinition.relationship.comparator" | |
  value[x] |
0..1 | CodeableConcept | An operator for the amount, for example "average", "approximately", "less than" Binding: R5SubstanceAmountTypeForR4 (0.1.0) (example): The relationship between two substance types. | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension(4.0.1) | R5: An operator for the amount, for example "average", "approximately", "less than" (new) Constraints: ext-1 | |
 id |
0..1 | string | 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/5.0/StructureDefinition/extension-SubstanceDefinition.relationship.comparator" | |
| value[x] |
0..1 | CodeableConcept | An operator for the amount, for example "average", "approximately", "less than" Binding: R5SubstanceAmountTypeForR4 (0.1.0) (example): The relationship between two substance types. | |
| Documentation for this format | ||||
Differential View
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension(4.0.1) | R5: An operator for the amount, for example "average", "approximately", "less than" (new) | |
| url |
1..1 | uri | "http://hl7.org/fhir/5.0/StructureDefinition/extension-SubstanceDefinition.relationship.comparator" | |
| value[x] |
0..1 | CodeableConcept | An operator for the amount, for example "average", "approximately", "less than" Binding: R5SubstanceAmountTypeForR4 (0.1.0) (example): The relationship between two substance types. | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension(4.0.1) | R5: An operator for the amount, for example "average", "approximately", "less than" (new) Constraints: ext-1 | |
| id |
0..1 | string | 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/5.0/StructureDefinition/extension-SubstanceDefinition.relationship.comparator" | |
| value[x] |
0..1 | CodeableConcept | An operator for the amount, for example "average", "approximately", "less than" Binding: R5SubstanceAmountTypeForR4 (0.1.0) (example): The relationship between two substance types. | |
| Documentation for this format | ||||
Other representations of profile: CSV, Excel, Schematron
| Path | Status | Usage | ValueSet | Version | Source |
| Extension.value[x] | Base | example | Cross-version ValueSet R5.SubstanceAmountType for use in FHIR R4 | 📍0.1.0 | This IG |
| Id | Grade | Path(s) | Description | Expression |
| ele-1 | error | Extension, Extension.extension, Extension.value[x] | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| 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-r5.r4#0.1.0 based on FHIR 4.0.1. Generated 2026-03-20
Links: Table of Contents |
QA Report
| Version History |
|
Propose a change