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| Package | Version | Identity | Name/Title | Status | FMM | WG | Date | Realm | Context | Modifier | Type | Usage # |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RatioRange.denominator.json | R4B: Denominator value (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Quantity | Mod:0 | |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RatioRange.highNumerator.json | R4B: High Numerator limit (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Quantity | Mod:0 | |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RatioRange.lowNumerator.json | R4B: Low Numerator limit (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Quantity | Mod:0 | |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Reference.identifier.json | R4B: identifier additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Reference.identifier | Type:Identifier | Mod:0 | |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Reference.type.json | R4B: Type the reference refers to (e.g. "Patient") (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Reference | Type:uri | Mod:0 | |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.basis.json | R4B: The legal/regulatory framework or reasons under which this authorization is granted (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.case.json | R4B: The case or regulatory procedure for granting or amending a regulated authorization. Note: This area is subject to ongoing review and the workgroup is seeking implementer feedback on its use (see link at bottom of page) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:complex | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.description.json | R4B: General textual supporting information (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:markdown | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.holder.json | R4B: The organization that has been granted this authorization, by the regulator (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Reference | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.indication.json | R4B: Condition for which the use of the regulated product applies (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:complex | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.intendedUse.json | R4B: The intended use of the product, e.g. prevention, treatment (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.region.json | R4B: The territory in which the authorization has been granted (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.regulator.json | R4B: The regulatory authority or authorizing body granting the authorization (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Reference | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.statusDate.json | R4B: The date at which the current status was assigned (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:dateTime | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.status.json | R4B: The status that is authorised e.g. approved. Intermediate states can be tracked with cases and applications (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.type.json | R4B: Overall type of this authorization, for example drug marketing approval, orphan drug designation (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r4 | R4 | StructureDefinition-ext-R4B-RegulatedAuthorization.validityPeriod.json | R4B: The time period in which the regulatory approval etc. is in effect, e.g. a Marketing Authorization includes the date of authorization and/or expiration date (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Period | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedArtifact.document.json | R4B: document additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedArtifact.document | Type:Attachment | Mod:0 | |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedArtifact.label.json | R4B: Short label (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedArtifact | Type:string | Mod:0 | |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedArtifact.resource.json | R4B: resource additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedArtifact.resource | Type:uri | Mod:0 | |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-RelatedArtifact.url.json | R4B: Where the artifact can be accessed (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedArtifact | Type:url | Mod:0 | |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedPerson.address.json | R4B: address additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedPerson.address | Type:Address | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedPerson.communication.json | R4B: A language which may be used to communicate with about the patient's health (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedPerson | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedPerson.identifier.json | R4B: identifier additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedPerson.identifier | Type:Identifier | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedPerson.meta.json | R4B: meta additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedPerson.meta | Type:Meta | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedPerson.name.json | R4B: name additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedPerson.name | Type:HumanName | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedPerson.period.json | R4B: period additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedPerson.period | Type:Period | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedPerson.photo.json | R4B: photo additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedPerson.photo | Type:Attachment | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedPerson.telecom.json | R4B: telecom additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedPerson.telecom | Type:ContactPoint | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RelatedPerson.text.json | R4B: text additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RelatedPerson.text | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.act.documentation.json | R4B: documentation additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.action.documentation | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.act.priority.json | R4B: routine | urgent | asap | stat (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.action | Type:code | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.act.rel.offset.json | R4B: offset additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.action.relatedAction | Type:Range | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.act.timing.json | R4B: timing additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.action | Type:Period,Timing,Range,Age | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.act.type.json | R4B: type additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.action.type | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.code.json | R4B: What's being requested/ordered (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.groupIdentifier.json | R4B: groupIdentifier additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.groupIdentifier | Type:Identifier | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.identifier.json | R4B: identifier additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.identifier | Type:Identifier | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.instantiatesCanonical.json | R4B: Instantiates FHIR protocol or definition additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.definition | Type:uri | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.instantiatesUri.json | R4B: Instantiates external protocol or definition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup | Type:uri | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.intent.json | R4B: proposal | plan | directive | order | original-order | reflex-order | filler-order | instance-order | option | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.intent | Type:code | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.meta.json | R4B: meta additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.meta | Type:Meta | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.note.json | R4B: note additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.note | Type:Annotation | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-RequestGroup.reasonCode.json | R4B: Why the request group is needed (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestOrchestration | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-RequestGroup.reasonReference.json | R4B: Why the request group is needed (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestOrchestration | Type:Reference | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RequestGroup.text.json | R4B: text additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RequestGroup.text | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.approvalDate.json | R4B: When the research definition was approved by publisher (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:date | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.author.json | R4B: Who authored the content (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:ContactDetail | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.comment.json | R4B: Used for footnotes or explanatory notes (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.contact.json | R4B: Contact details for the publisher (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:ContactDetail | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.copyright.json | R4B: Use and/or publishing restrictions (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:markdown | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.date.json | R4B: Date last changed (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:dateTime | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.description.json | R4B: Natural language description of the research definition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:markdown | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.editor.json | R4B: Who edited the content (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:ContactDetail | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.effectivePeriod.json | R4B: When the research definition is expected to be used (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Period | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.endorser.json | R4B: Who endorsed the content (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:ContactDetail | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.experimental.json | R4B: For testing purposes, not real usage (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:boolean | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.exposureAlternative.json | R4B: What alternative exposure state? (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Reference | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.exposure.json | R4B: What exposure? (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Reference | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.jurisdiction.json | R4B: Intended jurisdiction for research definition (if applicable) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.lastReviewDate.json | R4B: When the research definition was last reviewed (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:date | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.library.json | R4B: Logic used by the ResearchDefinition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:canonical | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.name.json | R4B: Name for this research definition (computer friendly) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.outcome.json | R4B: What outcome? (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Reference | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.population.json | R4B: What population? (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Reference | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.publisher.json | R4B: Name of the publisher (organization or individual) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.purpose.json | R4B: Why this research definition is defined (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:markdown | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.relatedArtifact.json | R4B: Additional documentation, citations, etc. (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:RelatedArtifact | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.reviewer.json | R4B: Who reviewed the content (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:ContactDetail | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.shortTitle.json | R4B: Title for use in informal contexts (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.status.json | R4B: draft | active | retired | unknown (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:code | Mod:1 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.subject.json | R4B: E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Reference,CodeableConcept | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.subtitle.json | R4B: Subordinate title of the ResearchDefinition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.title.json | R4B: Name for this research definition (human friendly) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.topic.json | R4B: The category of the ResearchDefinition, such as Education, Treatment, Assessment, etc. (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.url.json | R4B: Canonical identifier for this research definition, represented as a URI (globally unique) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:uri | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.usage.json | R4B: Describes the clinical usage of the ResearchDefinition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.useContext.json | R4B: The context that the content is intended to support (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:UsageContext | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchDefinition.version.json | R4B: Business version of the research definition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.approvalDate.json | R4B: When the research element definition was approved by publisher (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:date | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.author.json | R4B: Who authored the content (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:ContactDetail | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.characteristic.json | R4B: What defines the members of the research element (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:complex | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.comment.json | R4B: Used for footnotes or explanatory notes (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.contact.json | R4B: Contact details for the publisher (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:ContactDetail | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.copyright.json | R4B: Use and/or publishing restrictions (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:markdown | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.date.json | R4B: Date last changed (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:dateTime | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.description.json | R4B: Natural language description of the research element definition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:markdown | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.editor.json | R4B: Who edited the content (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:ContactDetail | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.effectivePeriod.json | R4B: When the research element definition is expected to be used (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Period | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.endorser.json | R4B: Who endorsed the content (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:ContactDetail | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.experimental.json | R4B: For testing purposes, not real usage (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:boolean | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.jurisdiction.json | R4B: Intended jurisdiction for research element definition (if applicable) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.lastReviewDate.json | R4B: When the research element definition was last reviewed (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:date | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.library.json | R4B: Logic used by the ResearchElementDefinition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:canonical | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.name.json | R4B: Name for this research element definition (computer friendly) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.publisher.json | R4B: Name of the publisher (organization or individual) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.purpose.json | R4B: Why this research element definition is defined (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:markdown | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.relatedArtifact.json | R4B: Additional documentation, citations, etc. (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:RelatedArtifact | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.reviewer.json | R4B: Who reviewed the content (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:ContactDetail | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.shortTitle.json | R4B: Title for use in informal contexts (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.status.json | R4B: draft | active | retired | unknown (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:code | Mod:1 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.subject.json | R4B: E.g. Patient, Practitioner, RelatedPerson, Organization, Location, Device (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:Reference,CodeableConcept | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.subtitle.json | R4B: Subordinate title of the ResearchElementDefinition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.title.json | R4B: Name for this research element definition (human friendly) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.topic.json | R4B: The category of the ResearchElementDefinition, such as Education, Treatment, Assessment, etc. (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.type.json | R4B: population | exposure | outcome (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:code | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.url.json | R4B: Canonical identifier for this research element definition, represented as a URI (globally unique) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:uri | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.usage.json | R4B: Describes the clinical usage of the ResearchElementDefinition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.useContext.json | R4B: The context that the content is intended to support (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:UsageContext | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.variableType.json | R4B: dichotomous | continuous | descriptive (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:code | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchElementDefinition.version.json | R4B: Business version of the research element definition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchStudy.category.json | R4B: Classifications for the study (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchStudy.condition.json | R4B: Condition being studied (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchStudy.contact.json | R4B: Contact details for the study (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy | Type:ContactDetail | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchStudy.enrollment.json | R4B: Inclusion & exclusion criteria (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy | Type:Reference | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchStudy.identifier.json | R4B: identifier additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy.identifier | Type:Identifier | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchStudy.location.json | R4B: Geographic region(s) for study (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchStudy.meta.json | R4B: meta additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy.meta | Type:Meta | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchStudy.note.json | R4B: Comments made about the study additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy.note | Type:Annotation | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchStudy.objective.json | R4B: A goal for the study (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchStudy.period.json | R4B: period additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy.period | Type:Period | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchStudy.phase.json | R4B: n-a | early-phase-1 | phase-1 | phase-1-phase-2 | phase-2 | phase-2-phase-3 | phase-3 | phase-4 (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchStudy.primaryPurposeType.json | R4B: treatment | prevention | diagnostic | supportive-care | screening | health-services-research | basic-science | device-feasibility (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchStudy.principalInvestigator.json | R4B: Researcher who oversees multiple aspects of the study (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy | Type:Reference | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchStudy.reasonStopped.json | R4B: accrual-goal-met | closed-due-to-toxicity | closed-due-to-lack-of-study-progress | temporarily-closed-per-study-design (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchStudy.relatedArtifact.json | R4B: relatedArtifact additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy.relatedArtifact | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchStudy.sponsor.json | R4B: Organization that initiates and is legally responsible for the study (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy | Type:Reference | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchStudy.status.json | R4B: active | administratively-completed | approved | closed-to-accrual | closed-to-accrual-and-intervention | completed | disapproved | in-review | temporarily-closed-to-accrual | temporarily-closed-to-accrual-and-intervention | withdrawn | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy.status | Type:code | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchStudy.text.json | R4B: text additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchStudy.text | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchSubject.identifier.json | R4B: Business Identifier for research subject in a study additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchSubject.identifier | Type:Identifier | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchSubject.meta.json | R4B: meta additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchSubject.meta | Type:Meta | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchSubject.period.json | R4B: period additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchSubject.period | Type:Period | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ResearchSubject.status.json | R4B: candidate | eligible | follow-up | ineligible | not-registered | off-study | on-study | on-study-intervention | on-study-observation | pending-on-study | potential-candidate | screening | withdrawn | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchSubject.status | Type:code | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ResearchSubject.text.json | R4B: text additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ResearchSubject.text | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Resource.meta.json | R4B: meta additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Resource.meta | Type:Meta | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RiskAssessment.identifier.json | R4B: identifier additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RiskAssessment.identifier | Type:Identifier | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RiskAssessment.meta.json | R4B: meta additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RiskAssessment.meta | Type:Meta | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RiskAssessment.note.json | R4B: note additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RiskAssessment.comment | Type:Annotation | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RiskAssessment.pre.probability.json | R4B: probability additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RiskAssessment.prediction | Type:Range | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RiskAssessment.pre.when.json | R4B: when additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RiskAssessment.prediction | Type:Period,Range | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-RiskAssessment.reasonReference.json | R4B: reasonReference additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RiskAssessment.reason | Type:Reference | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-RiskAssessment.text.json | R4B: text additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: RiskAssessment.text | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-SampledData.period.json | R4B: Number of milliseconds between samples additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: SampledData.intervalUnit | Type:decimal | Mod:0 | |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Schedule.identifier.json | R4B: identifier additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Schedule.identifier | Type:Identifier | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Schedule.meta.json | R4B: meta additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Schedule.meta | Type:Meta | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Schedule.planningHorizon.json | R4B: Period of time covered by schedule additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Schedule.planningHorizon | Type:Period | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Schedule.text.json | R4B: text additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Schedule.text | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SearchParameter.base.json | R4B: base additional codes | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter.base | Type:code | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SearchParameter.com.definition.json | R4B: definition additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter.component.definition | Type:uri | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SearchParameter.contact.json | R4B: contact additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter.contact | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SearchParameter.meta.json | R4B: meta additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter.meta | Type:Meta | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-SearchParameter.modifier.json | R4B: missing | exact | contains | not | text | in | not-in | below | above | type | identifier | ofType additional codes | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter.modifier | Type:code | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SearchParameter.multipleAnd.json | R4B: Allow multiple parameters (and) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter | Type:boolean | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SearchParameter.multipleOr.json | R4B: Allow multiple values per parameter (or) (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter | Type:boolean | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SearchParameter.target.json | R4B: target additional codes | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter.target | Type:code | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SearchParameter.text.json | R4B: text additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter.text | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SearchParameter.type.json | R4B: number | date | string | token | reference | composite | quantity | uri | special | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter.type | Type:code | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SearchParameter.useContext.json | R4B: The context that the content is intended to support additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter.useContext | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-SearchParameter.xpathUsage.json | R4B: normal | phonetic | nearby | distance | other additional codes | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter.processingMode | Type:code | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-SearchParameter.xpath.json | R4B: XPath that extracts the values (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: SearchParameter | Type:string | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.identifier.json | R4B: Identifiers assigned to this order additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ProcedureRequest.identifier,ReferralRequest.identifier | Type:Identifier | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.instantiatesCanonical.json | R4B: Instantiates FHIR protocol or definition additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ReferralRequest.definition,ProcedureRequest.definition | Type:uri | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.instantiatesUri.json | R4B: Instantiates external protocol or definition (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ReferralRequest,ProcedureRequest | Type:uri | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.insurance.json | R4B: Associated insurance coverage (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ReferralRequest,ProcedureRequest | Type:Reference | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.intent.json | R4B: proposal | plan | directive | order | original-order | reflex-order | filler-order | instance-order | option | trial-use | 0 | fhir | 2026-03 | uv | Context: ProcedureRequest.intent,ReferralRequest.intent | Type:code | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.locationCode.json | R4B: Requested location (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ReferralRequest,ProcedureRequest | Type:CodeableConcept | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.locationReference.json | R4B: Requested location (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ReferralRequest,ProcedureRequest | Type:Reference | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.meta.json | R4B: Metadata about the resource additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ReferralRequest.meta,ProcedureRequest.meta | Type:Meta | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.note.json | R4B: Comments additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ReferralRequest.note,ProcedureRequest.note | Type:Annotation | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.occurrence.json | R4B: When service should occur additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ReferralRequest,ProcedureRequest | Type:Period,Timing | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.patientInstruction.json | R4B: Patient or consumer-oriented instructions (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ReferralRequest,ProcedureRequest | Type:string | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.quantity.json | R4B: Service amount (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: ReferralRequest,ProcedureRequest | Type:Quantity,Ratio,Range | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-ServiceRequest.reasonReference.json | R4B: Explanation/Justification for service or service additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ServiceRequest.reason | Type:Reference | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.requisition.json | R4B: Composite Request ID additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ReferralRequest.groupIdentifier,ProcedureRequest.requisition | Type:Identifier | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-ServiceRequest.text.json | R4B: Text summary of the resource, for human interpretation additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: ProcedureRequest.text,ReferralRequest.text | Type:complex | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Signature.targetFormat.json | R4B: The technical format of the signed resources (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Signature | Type:code | Mod:0 | |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Slot.identifier.json | R4B: identifier additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Slot.identifier | Type:Identifier | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Slot.meta.json | R4B: meta additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Slot.meta | Type:Meta | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Slot.text.json | R4B: text additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Slot.text | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Specimen.accessionIdentifier.json | R4B: accessionIdentifier additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.accessionIdentifier | Type:Identifier | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Specimen.col.duration.json | R4B: How long it took to collect specimen (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.collection | Type:Duration | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Specimen.col.fastingStatus.json | R4B: Whether or how long patient abstained from food and/or drink (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.collection | Type:Duration,CodeableConcept | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Specimen.condition.json | R4B: State of the specimen (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-Specimen.con.additive.json | R4B: Additive associated with container (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.container | Type:Reference,CodeableConcept | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-Specimen.con.capacity.json | R4B: Container volume or size (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.container | Type:Quantity | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-Specimen.con.description.json | R4B: Textual description of the container (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.container | Type:string | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-Specimen.con.identifier.json | R4B: Id for the container (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.container | Type:Identifier | Mod:0 | 3 |
| hl7.fhir.uv.xver-r4b.r5 | R5 | StructureDefinition-ext-R4B-Specimen.con.type.json | R4B: Kind of container directly associated with specimen (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.container | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Specimen.identifier.json | R4B: identifier additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.identifier | Type:Identifier | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Specimen.meta.json | R4B: meta additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.meta | Type:Meta | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Specimen.note.json | R4B: note additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.note | Type:Annotation | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-Specimen.text.json | R4B: text additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: Specimen.text | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SpecimenDefinition.collection.json | R4B: Specimen collection procedure (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SpecimenDefinition.patientPreparation.json | R4B: Patient preparation for collection (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SpecimenDefinition.timeAspect.json | R4B: Time aspect for collection (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:string | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SpecimenDefinition.typeCollected.json | R4B: Kind of material to collect (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-SpecimenDefinition.typeTested.json | R4B: Specimen in container intended for testing by lab (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: Basic | Type:complex | Mod:0 | 1 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-StructureDefinition.contact.json | R4B: Contact details for the publisher additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: StructureDefinition.contact,DataElement.contact | Type:complex | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-StructureDefinition.con.type.json | R4B: fhirpath | element | extension (new) | trial-use | 0 | fhir | 2026-03 | uv | Context: DataElement,StructureDefinition.context | Type:code | Mod:0 | 2 |
| hl7.fhir.uv.xver-r4b.r3 | R3 | StructureDefinition-ext-R4B-StructureDefinition.dif.element.json | R4B: Definition of elements in the resource (if no StructureDefinition) additional types | trial-use | 0 | fhir | 2026-03 | uv | Context: StructureDefinition.differential.element,DataElement.element | Type:complex | Mod:0 | 2 |
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