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/profile-Linkage | Version: 0.1.0 | |||
| Standards status: Trial-use | Maturity Level: 0 | Computable Name: Profile_R4_Linkage_R4B | ||
This cross-version profile allows R4 Linkage content to be represented via FHIR R4B Linkage resources.
Usages:
You can also check for usages in the FHIR IG Statistics
Description of Profiles, Differentials, Snapshots and how the different presentations work.
| Name | Flags | Card. | Type | Description & Constraints Filter:   |
|---|---|---|---|---|
  Linkage |
C | 0..* | Linkage(4.3.0) | Links records for 'same' item Constraints: lnk-1 |
  implicitRules |
?!Σ | 0..1 | uri | A set of rules under which this content was created |
 modifierExtension |
?! | 0..* | Extension | Extensions that cannot be ignored Constraints: ext-1 |
  item |
ΣC | 1..* | BackboneElement | Item to be linked |
 modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized Constraints: ext-1 |
| type |
Σ | 1..1 | code | source | alternate | historical Binding: LinkageType (required): Used to distinguish different roles a resource can play within a set of linked resources. |
  resource |
Σ | 1..1 | Reference(Resource) | Resource being linked |
| Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source |
| Linkage.item.type | Base | required | LinkageType | 📍4.3.0 | FHIR Std. |
| Id | Grade | Path(s) | Description | Expression |
| dom-2 | error | Linkage | If the resource is contained in another resource, it SHALL NOT contain nested Resources |
contained.contained.empty()
|
| dom-3 | error | Linkage | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource |
contained.where(((id.exists() and ('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url)))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(uri) = '#').exists()).not()).trace('unmatched', id).empty()
|
| dom-4 | error | Linkage | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated |
contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
|
| dom-5 | error | Linkage | If a resource is contained in another resource, it SHALL NOT have a security label |
contained.meta.security.empty()
|
| dom-6 | best practice | Linkage | A resource should have narrative for robust management |
text.`div`.exists()
|
| ele-1 | error | Linkage.implicitRules, Linkage.modifierExtension, Linkage.item, Linkage.item.modifierExtension, Linkage.item.type, Linkage.item.resource | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| ext-1 | error | Linkage.modifierExtension, Linkage.item.modifierExtension | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|
| lnk-1 | error | Linkage | Must have at least two items |
item.count()>1
|
This structure is derived from Linkage
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Linkage |
0..* | Linkage(4.3.0) | Links records for 'same' item | |
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: | ||||
|---|---|---|---|---|---|---|---|---|
| Linkage |
C | 0..* | Linkage(4.3.0) | Links records for 'same' item Constraints: lnk-1 | ||||
| id |
Σ | 0..1 | id | Logical id of this artifact | ||||
| meta |
Σ | 0..1 | Meta | Metadata about the resource | ||||
| implicitRules |
?!Σ | 0..1 | uri | A set of rules under which this content was created | ||||
| language |
0..1 | code | Language of the resource content Binding: CommonLanguages (preferred): IETF language tag
| |||||
| text |
0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements | |||||
| contained |
0..* | Resource | Contained, inline Resources Constraints: dom-r4b | |||||
 extension |
0..* | Extension | Additional content defined by implementations Constraints: ext-1 | |||||
| modifierExtension |
?! | 0..* | Extension | Extensions that cannot be ignored Constraints: ext-1 | ||||
| active |
Σ | 0..1 | boolean | Whether this linkage assertion is active or not | ||||
| author |
Σ | 0..1 | Reference(Practitioner | PractitionerRole | Organization) | Who is responsible for linkages | ||||
| item |
ΣC | 1..* | BackboneElement | Item to be linked | ||||
| id |
0..1 | string | Unique id for inter-element referencing | |||||
| extension |
0..* | Extension | Additional content defined by implementations Constraints: ext-1 | |||||
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized Constraints: ext-1 | ||||
| type |
Σ | 1..1 | code | source | alternate | historical Binding: LinkageType (required): Used to distinguish different roles a resource can play within a set of linked resources. | ||||
| resource |
Σ | 1..1 | Reference(Resource) | Resource being linked | ||||
| Documentation for this format | ||||||||
| Path | Status | Usage | ValueSet | Version | Source |
| Linkage.language | Base | preferred | Common Languages | 📍4.3.0 | FHIR Std. |
| Linkage.item.type | Base | required | LinkageType | 📍4.3.0 | FHIR Std. |
| Id | Grade | Path(s) | Description | Expression |
| dom-2 | error | Linkage | If the resource is contained in another resource, it SHALL NOT contain nested Resources |
contained.contained.empty()
|
| dom-3 | error | Linkage | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource |
contained.where(((id.exists() and ('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url)))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(uri) = '#').exists()).not()).trace('unmatched', id).empty()
|
| dom-4 | error | Linkage | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated |
contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
|
| dom-5 | error | Linkage | If a resource is contained in another resource, it SHALL NOT have a security label |
contained.meta.security.empty()
|
| dom-6 | best practice | Linkage | A resource should have narrative for robust management |
text.`div`.exists()
|
| dom-r4b | warning | Linkage.contained | Containing new R4B resources within R4 resources may cause interoperability issues if instances are shared with R4 systems |
($this is Citation or $this is Evidence or $this is EvidenceReport or $this is EvidenceVariable or $this is MedicinalProductDefinition or $this is PackagedProductDefinition or $this is AdministrableProductDefinition or $this is Ingredient or $this is ClinicalUseDefinition or $this is RegulatedAuthorization or $this is SubstanceDefinition or $this is SubscriptionStatus or $this is SubscriptionTopic) implies (%resource is Citation or %resource is Evidence or %resource is EvidenceReport or %resource is EvidenceVariable or %resource is MedicinalProductDefinition or %resource is PackagedProductDefinition or %resource is AdministrableProductDefinition or %resource is Ingredient or %resource is ClinicalUseDefinition or %resource is RegulatedAuthorization or %resource is SubstanceDefinition or %resource is SubscriptionStatus or %resource is SubscriptionTopic)
|
| ele-1 | error | Linkage.meta, Linkage.implicitRules, Linkage.language, Linkage.text, Linkage.extension, Linkage.modifierExtension, Linkage.active, Linkage.author, Linkage.item, Linkage.item.extension, Linkage.item.modifierExtension, Linkage.item.type, Linkage.item.resource | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| ext-1 | error | Linkage.extension, Linkage.modifierExtension, Linkage.item.extension, Linkage.item.modifierExtension | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|
| lnk-1 | error | Linkage | Must have at least two items |
item.count()>1
|
Key Elements View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Linkage |
C | 0..* | Linkage(4.3.0) | Links records for 'same' item Constraints: lnk-1 |
| implicitRules |
?!Σ | 0..1 | uri | A set of rules under which this content was created |
| modifierExtension |
?! | 0..* | Extension | Extensions that cannot be ignored Constraints: ext-1 |
| item |
ΣC | 1..* | BackboneElement | Item to be linked |
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized Constraints: ext-1 |
| type |
Σ | 1..1 | code | source | alternate | historical Binding: LinkageType (required): Used to distinguish different roles a resource can play within a set of linked resources. |
| resource |
Σ | 1..1 | Reference(Resource) | Resource being linked |
| Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source |
| Linkage.item.type | Base | required | LinkageType | 📍4.3.0 | FHIR Std. |
| Id | Grade | Path(s) | Description | Expression |
| dom-2 | error | Linkage | If the resource is contained in another resource, it SHALL NOT contain nested Resources |
contained.contained.empty()
|
| dom-3 | error | Linkage | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource |
contained.where(((id.exists() and ('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url)))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(uri) = '#').exists()).not()).trace('unmatched', id).empty()
|
| dom-4 | error | Linkage | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated |
contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
|
| dom-5 | error | Linkage | If a resource is contained in another resource, it SHALL NOT have a security label |
contained.meta.security.empty()
|
| dom-6 | best practice | Linkage | A resource should have narrative for robust management |
text.`div`.exists()
|
| ele-1 | error | Linkage.implicitRules, Linkage.modifierExtension, Linkage.item, Linkage.item.modifierExtension, Linkage.item.type, Linkage.item.resource | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| ext-1 | error | Linkage.modifierExtension, Linkage.item.modifierExtension | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|
| lnk-1 | error | Linkage | Must have at least two items |
item.count()>1
|
Differential View
This structure is derived from Linkage
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Linkage |
0..* | Linkage(4.3.0) | Links records for 'same' item | |
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: | ||||
|---|---|---|---|---|---|---|---|---|
| Linkage |
C | 0..* | Linkage(4.3.0) | Links records for 'same' item Constraints: lnk-1 | ||||
| id |
Σ | 0..1 | id | Logical id of this artifact | ||||
| meta |
Σ | 0..1 | Meta | Metadata about the resource | ||||
| implicitRules |
?!Σ | 0..1 | uri | A set of rules under which this content was created | ||||
| language |
0..1 | code | Language of the resource content Binding: CommonLanguages (preferred): IETF language tag
| |||||
| text |
0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements | |||||
| contained |
0..* | Resource | Contained, inline Resources Constraints: dom-r4b | |||||
| extension |
0..* | Extension | Additional content defined by implementations Constraints: ext-1 | |||||
| modifierExtension |
?! | 0..* | Extension | Extensions that cannot be ignored Constraints: ext-1 | ||||
| active |
Σ | 0..1 | boolean | Whether this linkage assertion is active or not | ||||
| author |
Σ | 0..1 | Reference(Practitioner | PractitionerRole | Organization) | Who is responsible for linkages | ||||
| item |
ΣC | 1..* | BackboneElement | Item to be linked | ||||
| id |
0..1 | string | Unique id for inter-element referencing | |||||
| extension |
0..* | Extension | Additional content defined by implementations Constraints: ext-1 | |||||
| modifierExtension |
?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized Constraints: ext-1 | ||||
| type |
Σ | 1..1 | code | source | alternate | historical Binding: LinkageType (required): Used to distinguish different roles a resource can play within a set of linked resources. | ||||
| resource |
Σ | 1..1 | Reference(Resource) | Resource being linked | ||||
| Documentation for this format | ||||||||
| Path | Status | Usage | ValueSet | Version | Source |
| Linkage.language | Base | preferred | Common Languages | 📍4.3.0 | FHIR Std. |
| Linkage.item.type | Base | required | LinkageType | 📍4.3.0 | FHIR Std. |
| Id | Grade | Path(s) | Description | Expression |
| dom-2 | error | Linkage | If the resource is contained in another resource, it SHALL NOT contain nested Resources |
contained.contained.empty()
|
| dom-3 | error | Linkage | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource |
contained.where(((id.exists() and ('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url)))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(uri) = '#').exists()).not()).trace('unmatched', id).empty()
|
| dom-4 | error | Linkage | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated |
contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
|
| dom-5 | error | Linkage | If a resource is contained in another resource, it SHALL NOT have a security label |
contained.meta.security.empty()
|
| dom-6 | best practice | Linkage | A resource should have narrative for robust management |
text.`div`.exists()
|
| dom-r4b | warning | Linkage.contained | Containing new R4B resources within R4 resources may cause interoperability issues if instances are shared with R4 systems |
($this is Citation or $this is Evidence or $this is EvidenceReport or $this is EvidenceVariable or $this is MedicinalProductDefinition or $this is PackagedProductDefinition or $this is AdministrableProductDefinition or $this is Ingredient or $this is ClinicalUseDefinition or $this is RegulatedAuthorization or $this is SubstanceDefinition or $this is SubscriptionStatus or $this is SubscriptionTopic) implies (%resource is Citation or %resource is Evidence or %resource is EvidenceReport or %resource is EvidenceVariable or %resource is MedicinalProductDefinition or %resource is PackagedProductDefinition or %resource is AdministrableProductDefinition or %resource is Ingredient or %resource is ClinicalUseDefinition or %resource is RegulatedAuthorization or %resource is SubstanceDefinition or %resource is SubscriptionStatus or %resource is SubscriptionTopic)
|
| ele-1 | error | Linkage.meta, Linkage.implicitRules, Linkage.language, Linkage.text, Linkage.extension, Linkage.modifierExtension, Linkage.active, Linkage.author, Linkage.item, Linkage.item.extension, Linkage.item.modifierExtension, Linkage.item.type, Linkage.item.resource | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
| ext-1 | error | Linkage.extension, Linkage.modifierExtension, Linkage.item.extension, Linkage.item.modifierExtension | Must have either extensions or value[x], not both |
extension.exists() != value.exists()
|
| lnk-1 | error | Linkage | Must have at least two items |
item.count()>1
|
Other representations of profile: CSV, Excel, Schematron
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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