| Package | Version | Identity | Name/Title | Status | FMM | WG | Date | Auth | Context | Modifier | Type | Usage # |
|---|
| hl7.fhir.us.carin-rtpbc | R4 | StructureDefinition-rtpbc-nextAvailableFillDate.json | RTPBC nextAvailableFillDate Extension | trial-use | 1 | phx | 2025-12 | hl7 | Context: ClaimResponse.item,ClaimResponse.addItem | Type:date | Mod:0 | 2 |
| hl7.fhir.us.carin-rtpbc | R4 | StructureDefinition-rtpbc-formularyStatus.json | RTPBC formularyStatus Extension | trial-use | 1 | phx | 2025-10 | hl7 | Context: ClaimResponse.item,ClaimResponse.addItem | Type:Coding | Mod:0 | 2 |
| hl7.fhir.us.carin-rtpbc | R4 | StructureDefinition-rtpbc-preferenceLevel.json | RTPBC preferenceLevel Extension | trial-use | 1 | phx | 2025-12 | hl7 | Context: ClaimResponse.item,ClaimResponse.addItem | Type:positiveInt | Mod:0 | 2 |
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-ServiceRequestMethod.json | Extension UK Core Service Request Method | retired | | | 2022-05 | hl7 | Context: ServiceRequest | Type:complex | Mod:0 | |
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-SourceOfServiceRequest.json | Extension UK Core Source Of Service Request | active | | | 2022-12 | hl7 | Context: ServiceRequest | Type:complex | Mod:0 | 2 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-identifier-status.json | NDH Identifier Status | trial-use | 4 | pa | 2017-11 | hl7 | Context: Identifier | Type:code | Mod:0 | 10 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-logo.json | NDH Logo | trial-use | 4 | pa | 2026-08 | hl7 | Context: Organization,OrganizationAffiliation,HealthcareService | Type:Attachment | Mod:0 | 3 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-endpoint-reference.json | NDH Endpoint Reference | trial-use | 4 | pa | 2026-08 | hl7 | Context: Practitioner,Group | Type:Reference | Mod:0 | 2 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-newpatients-characteristics.json | NDH New Patients Characteristics | trial-use | 4 | pa | 2026-08 | hl7 | Context: | Type:string | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-rating-details.json | NDH Rating Details | trial-use | 4 | pa | 2026-08 | hl7 | Context: | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-endpoint-environment-type.json | NDH Endpoint EnvironmentType | trial-use | 4 | pa | 2026-08 | hl7 | Context: Endpoint | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-org-alias-type.json | NDH Organization Alias Type | trial-use | 4 | pa | 2026-08 | hl7 | Context: Organization.alias | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-accessibility.json | NDH Accessibility | trial-use | 4 | pa | 2026-08 | hl7 | Context: Practitioner,Location | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-security-details.json | NDH Security Details | trial-use | 4 | pa | 2026-08 | hl7 | Context: Endpoint | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-verification-status.json | NDH Verification Status | trial-use | 4 | pa | 2026-08 | hl7 | Context: Practitioner,Group,Organization,Endpoint,OrganizationAffiliation,HealthcareService,PractitionerRole,InsurancePlan,Location | Type:CodeableConcept | Mod:0 | 11 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-dynamicRegistration.json | NDH Dynamic Registration | trial-use | 4 | pa | 2026-08 | hl7 | Context: Endpoint | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-location-reference.json | NDH Location Reference | trial-use | 4 | pa | 2026-08 | hl7 | Context: Group,Organization | Type:Reference | Mod:0 | 3 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-endpointAccessControlMechanism.json | NDH Endpoint Access Control Mechanism | trial-use | 4 | pa | 2026-08 | hl7 | Context: Endpoint | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-delivery-method.json | NDH Delivery Method | trial-use | 4 | pa | 2026-08 | hl7 | Context: HealthcareService | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-implementation-guide.json | NDH Implementation Guide Supported | trial-use | 4 | pa | 2026-08 | hl7 | Context: Endpoint | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-communication-proficiency.json | NDH Communication Proficiency | trial-use | 4 | pa | 2026-08 | hl7 | Context: Practitioner.communication | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-service-or-program-requirement.json | NDH HealthcareService or Program Requirement | trial-use | 4 | pa | 2026-08 | hl7 | Context: HealthcareService | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-requiredDocument.json | NDH Required Document | trial-use | 4 | pa | 2026-08 | hl7 | Context: HealthcareService | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-network-reference.json | NDH Network Reference | trial-use | 4 | pa | 2026-08 | hl7 | Context: HealthcareService,PractitionerRole | Type:Reference | Mod:0 | 2 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-endpoint-rank.json | NDH Endpoint Rank | trial-use | 4 | pa | 2026-08 | hl7 | Context: Endpoint | Type:positiveInt | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-fundingSource.json | NDH Funding Source | trial-use | 4 | pa | 2026-08 | hl7 | Context: Organization,HealthcareService | Type:complex | Mod:0 | 2 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-insuranceplan-reference.json | NDH InsurancePlan Reference | trial-use | 4 | pa | 2026-08 | hl7 | Context: Organization | Type:Reference | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-org-description.json | NDH Org Description | trial-use | 4 | pa | 2026-08 | hl7 | Context: Organization | Type:string | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-secureExchangeArtifacts.json | NDH Secure Exchange Artifacts | trial-use | 4 | pa | 2026-08 | hl7 | Context: Endpoint | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-practitioner-qualification-scope.json | NDH Practitioner Qualification Scope where valid and status | trial-use | 4 | pa | 2026-08 | hl7 | Context: Practitioner.qualification | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-endpoint-ihe-specific-connection-type.json | NDH Endpoint IHE Specific Connection Type | trial-use | 4 | pa | 2026-08 | hl7 | Context: Endpoint | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-ndh-age-range.json | NDH Age Range | trial-use | 4 | pa | 2026-08 | hl7 | Context: | Type:Range | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-ndh-age-group.json | NDH Age Group | trial-use | 4 | pa | 2026-08 | hl7 | Context: | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-associatedServers.json | NDH Associated Servers | trial-use | 4 | pa | 2026-08 | hl7 | Context: Endpoint | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-newpatients.json | NDH New Patients | trial-use | 4 | pa | 2026-08 | hl7 | Context: HealthcareService,PractitionerRole,Location | Type:complex | Mod:0 | 3 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-rating.json | NDH Rating | trial-use | 4 | pa | 2026-08 | hl7 | Context: Practitioner,Organization,HealthcareService,PractitionerRole | Type:complex | Mod:0 | 4 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-language-speak.json | NDH Language Speak | trial-use | 4 | pa | 2026-08 | hl7 | Context: Location.telecom,HealthcareService.telecom,Organization.telecom | Type:code | Mod:0 | 3 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-paymentAccepted.json | NDH Payment Accepted | trial-use | 4 | pa | 2026-08 | hl7 | Context: Organization,HealthcareService | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-org-alias-period.json | NDH Organization Alias Period | trial-use | 4 | pa | 2026-08 | hl7 | Context: Organization.alias | Type:Period | Mod:0 | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-BackgroundColor-extension.json | Background Color | trial-use | 2 | claims | 2026-08 | hl7 | Context: Coverage.extension | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-ForegroundColor-extension.json | Foreground Color | trial-use | 2 | claims | 2026-08 | hl7 | Context: Coverage.extension | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-HighlightColor-extension.json | Highlight Color | trial-use | 2 | claims | 2026-08 | hl7 | Context: Coverage.extension | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-QRCode-extension.json | QR Code | trial-use | 2 | claims | 2026-08 | hl7 | Context: Coverage | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-Barcode-extension.json | Barcode | trial-use | 2 | claims | 2026-08 | hl7 | Context: Coverage | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-Logo-extension.json | Logo | trial-use | 2 | claims | 2026-08 | hl7 | Context: Coverage | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-SupportingImage-extension.json | Supporting image | trial-use | 2 | claims | 2026-08 | hl7 | Context: Coverage | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-AdditionalCardInformation-extension.json | Additional Insurance Card Information | trial-use | 2 | claims | 2026-08 | hl7 | Context: Coverage | Type:Reference,Annotation | Mod:0 | 1 |
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-DeviceReference.json | Extension UK Core Device Reference | active | | | 2024-07 | hl7 | Context: DiagnosticReport.performer,DiagnosticReport.resultsInterpreter | Type:complex | Mod:0 | 2 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-ColorPalette-extension.json | Color Palette | trial-use | 2 | claims | 2026-08 | hl7 | Context: Coverage | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.davinci-ra | R4 | StructureDefinition-ra-groupReference.json | Group Reference Extension | trial-use | 2 | cqi | 2026-04 | hl7 | Context: DetectedIssue,MeasureReport.evaluatedResource | Type:string | Mod:0 | 2 |
| hl7.fhir.us.carin-rtpbc | R4 | StructureDefinition-rtpbc-isAlternative.json | RTPBC isAlternative Extension | trial-use | 1 | phx | 2020-05 | hl7 | Context: ClaimResponse.addItem | Type:boolean | Mod:0 | 2 |
| hl7.fhir.us.core | R4 | StructureDefinition-us-core-interpreter-needed.json | US Core Interpreter Needed Extension | trial-use | 2 | cgp | 2024-09 | hl7 | Context: Practitioner,Encounter,Patient,RelatedPerson | Type:Coding | Mod:0 | 2 |
| hl7.fhir.us.core | R4 | StructureDefinition-us-core-authentication-time.json | US Core Authentication Time Extension | deprecated | 2 | cgp | 2024-10 | hl7 | Context: DocumentReference | Type:dateTime | Mod:0 | |
| hl7.fhir.us.home-lab-report.r4 | R4 | StructureDefinition-Extension-sex-for-clinical-use.json | Extension - Sex For Clinical Use | active | | | 2022-10 | hl7 | Context: Patient | Type:complex | Mod:0 | |
| fhir.onc.us-quality-core | R4 | StructureDefinition-uscdiplusquality.json | US Quality Core USCDI+ Quality Extension | active | | | 2026-06 | hl7 | Context: ElementDefinition.type.targetProfile,ElementDefinition.type,ElementDefinition | Type:boolean | Mod:0 | |
| hl7.fhir.us.cimilabs | R4 | StructureDefinition-lab-document.json | Lab Document extension | draft | | | 2023-08 | hl7 | Context: Element | Type:complex | Mod:0 | 1 |
| signal.core.r4 | R4 | StructureDefinition-extension-SignalServiceRequestProvider.json | SignalServiceRequestProvider | draft | | | | hl7 | Context: ServiceRequest | Type:complex | Mod:0 | |
| hl7.fhir.us.davinci-pct | R4 | StructureDefinition-gfeBillingProviderLineItemCtrlNum.json | GFEBillingProviderLineItemCtrlNum | trial-use | 2 | fm | 2026-03 | hl7 | Context: Claim.item | Type:Identifier | Mod:0 | 2 |
| hl7.fhir.us.davinci-pct | R4 | StructureDefinition-providerEventMethodology.json | ProviderEventMethodology | trial-use | 2 | fm | 2026-03 | hl7 | Context: Claim | Type:string | Mod:0 | 2 |
| hl7.fhir.us.quality-core | R4 | StructureDefinition-us-quality-core-uscdi-quality-extension.json | US Quality Core USCDI+ Quality Extension | trial-use | 4 | cqi | 2026-06 | hl7 | Context: ElementDefinition.type.targetProfile,ElementDefinition.type,ElementDefinition | Type:boolean | Mod:0 | |
| hl7.fhir.us.davinci-pct | R4 | StructureDefinition-serviceDescription.json | Service Description | trial-use | 2 | fm | 2026-03 | hl7 | Context: Claim.item,Claim.procedure,ExplanationOfBenefit,ExplanationOfBenefit.item | Type:string | Mod:0 | 5 |
| hl7.fhir.us.davinci-pct | R4 | StructureDefinition-processNoteClass.json | ProcessNote Class | trial-use | 2 | fm | 2026-03 | hl7 | Context: ExplanationOfBenefit.processNote | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.us.pacio-cs | R4 | StructureDefinition-event-location.json | ObservationEventLocation | active | | | 2024-11 | hl7 | Context: SupplyDelivery,Observation,Media,DiagnosticReport | Type:Reference | Mod:0 | 3 |
| hl7.fhir.us.pacio-fs | R4 | StructureDefinition-event-location.json | ObservationEventLocation | active | | | 2021-11 | hl7 | Context: SupplyDelivery,Observation,Media,DiagnosticReport | Type:Reference | Mod:0 | 3 |
| hl7.fhir.us.pacio-pfe | R4 | StructureDefinition-event-location.json | ObservationEventLocation | trial-use | 3 | pc | 2026-08 | hl7 | Context: MedicationDispense,SupplyDelivery,Observation,DiagnosticReport,MedicationAdministration,DocumentReference | Type:Reference | Mod:0 | 4 |
| hl7.fhir.us.davinci-pct | R4 | StructureDefinition-providerTaxonomy.json | ProviderTaxonomy | trial-use | 2 | fm | 2026-03 | hl7 | Context: Claim.provider | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.us.davinci-pct | R4 | StructureDefinition-subjectToMedicalMgmt.json | Subject To Medical Management | trial-use | 2 | fm | 2026-03 | hl7 | Context: ExplanationOfBenefit.item.adjudication,ExplanationOfBenefit.adjudication | Type:string,CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.davinci-pct | R4 | StructureDefinition-gfeServiceLinkingInfo.json | GFEServiceLinkingInfo | trial-use | 2 | fm | 2026-03 | hl7 | Context: Composition,Claim | Type:complex | Mod:0 | 5 |
| hl7.fhir.us.davinci-pct | R4 | StructureDefinition-referralNumber.json | ReferralNumber | trial-use | 2 | fm | 2026-03 | hl7 | Context: Claim.referral | Type:string | Mod:0 | 2 |
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-AssociatedEncounter.json | Extension UK Core Associated Encounter | active | | | 2024-07 | hl7 | Context: FamilyMemberHistory | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.davinci-pct | R4 | StructureDefinition-gfeReference.json | GFE Reference | trial-use | 2 | fm | 2026-03 | hl7 | Context: ExplanationOfBenefit | Type:Reference | Mod:0 | 1 |
| hl7.fhir.us.bfdr | R4 | StructureDefinition-Extension-jurisdictional-facility-identifier.json | Jurisdictional Facility Identifier | draft | | pher | 2025-08 | hl7 | Context: Identifier | Type:string | Mod:0 | 1 |
| hl7.fhir.us.bfdr | R4 | StructureDefinition-practitioner-role-birth-attendant.json | Practitioner Role - Birth Attendant | draft | | pher | 2025-08 | hl7 | Context: Practitioner | Type:code | Mod:0 | 1 |
| hl7.fhir.us.bfdr | R4 | StructureDefinition-practitioner-role-birth-certifier.json | Practitioner Role - Certifier | draft | | pher | 2025-08 | hl7 | Context: Practitioner | Type:code | Mod:0 | 1 |
| fhir.r4.wales.test | R4 | Extension-DataStandardsWales-DocumentErrorAction.json | Extension Data Standards Wales Document Error Action | draft | | | 2025-09 | hl7 | Context: DocumentReference | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.davinci-pct | R4 | StructureDefinition-inNetworkProviderOptionsLink.json | In Network Provider Options Link | trial-use | 2 | fm | 2026-03 | hl7 | Context: ExplanationOfBenefit | Type:url | Mod:0 | 2 |
| hl7.fhir.us.cancer-reporting | R4 | StructureDefinition-composition-diagnosticReportReference.json | Document DiagnosticReport Reference | trial-use | 2 | oo | 2025-10 | hl7 | Context: Composition | Type:Reference | Mod:0 | 1 |
| hl7.fhir.us.healthedata1-sandbox | R4 | StructureDefinition-us-core-accommodation.json | US Core Accommodation Extension | active | 2 | | 2026-05 | hl7 | Context: Practitioner,Encounter,Patient,RelatedPerson | Type:Annotation | Mod:0 | |
| hl7.fhir.us.ecr.r4b | R4B | StructureDefinition-us-ph-information-recipient-extension.json | US Public Health Information Recipient Extension | active | | pher | 2024-10 | hl7 | Context: Composition | Type:Reference | Mod:0 | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-service-offered.json | Service Offered for a Group | trial-use | 4 | pa | 2026-08 | hl7 | Context: Group | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.ecr.r4b | R4B | StructureDefinition-us-ph-alternative-expression-extension.json | US Public Health Alternative Expression Extension | active | | pher | 2024-10 | hl7 | Context: | Type:Expression | Mod:0 | |
| hl7.fhir.us.core | R4 | StructureDefinition-us-core-genderIdentity.json | US Core Gender Identity Extension | deprecated | 3 | cgp | 2025-04 | hl7 | Context: Practitioner,Patient,Person,RelatedPerson | Type:CodeableConcept | Mod:0 | |
| fhir.r4.wales.test | R4 | Extension-DataStandardsWales-DocumentAttribute.json | Extension Data Standards Wales Document Attribute | draft | | | 2025-08 | hl7 | Context: DocumentReference | Type:complex | Mod:0 | 1 |
| fhir.r4.wales.test | R4 | Extension-DataStandardsWales-AdministeredProduct.json | Extension Data Standards Wales Administered Product | draft | | | 2025-04 | hl7 | Context: Immunization | Type:complex | Mod:0 | 1 |
| fhir.r4.wales.test | R4 | Extension-DataStandardsWales-DocumentDigitalStatus.json | Extension Data Standards Wales Document Digital Status | draft | | | 2025-08 | hl7 | Context: DocumentReference | Type:complex | Mod:0 | 1 |
| fhir.r4.wales.test | R4 | Extension-DataStandardsWales-SourceSystem.json | Extension Data Standards Wales Source System | draft | | | 2025-09 | hl7 | Context: DocumentReference | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.carin-rtpbc | R4 | StructureDefinition-rtpbc-preferredPharmacyPostalCode.json | RTPBC Preferred Pharmacy Postal Code Extension | trial-use | 1 | phx | 2026-03 | hl7 | Context: Claim.provider | Type:string | Mod:0 | 1 |
| gov.cdc.nhsn.dqm | R4 | StructureDefinition-link-original-mapped-concept-extension.json | Original Mapped Concept | trial-use | 1 | | 2023-04 | | Context: Element | Type:code,Coding,CodeableConcept | Mod:0 | |
| gov.cdc.nhsn.dqm | R4 | StructureDefinition-link-received-date-extension.json | Received Date | trial-use | 1 | | 2023-05 | | Context: Resource.meta | Type:dateTime | Mod:0 | 32 |
| gov.cdc.nhsn.dqm | R4 | StructureDefinition-link-original-element-value-extension.json | Original Element Value | trial-use | 1 | | 2023-04 | | Context: Element | Type:date,Meta,Address,Attachment,integer,Count,DataRequirement,Dosage,uuid,Identifier,Coding,SampledData,id,positiveInt,Distance,Period,Duration,canonical,Range,RelatedArtifact,base64Binary,UsageContext,Timing,decimal,CodeableConcept,ParameterDefinition,dateTime,code,string,Contributor,oid,instant,ContactPoint,HumanName,Money,markdown,Ratio,Age,Reference,TriggerDefinition,Quantity,uri,url,Annotation,ContactDetail,boolean,Expression,Signature,unsignedInt,time | Mod:0 | |
| gov.cdc.nhsn.dqm | R4 | StructureDefinition-link-original-resource-id-extension.json | Original Resource ID | trial-use | 1 | | 2023-04 | | Context: DomainResource,Reference | Type:string | Mod:0 | |
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-ObservationTriggeredBy.json | Extension UK Core Observation Triggered By | retired | | | 2026-02 | hl7 | Context: Observation | Type:complex | Mod:0 | 10 |
| hl7.fhir.us.codex-radiation-therapy | R4 | StructureDefinition-codexrt-radiotherapy-point-dose.json | Point Dose | trial-use | | cgp | 2026-05 | hl7 | Context: | Type:boolean | Mod:0 | 7 |
| hl7.fhir.us.codex-radiation-therapy | R4 | StructureDefinition-codexrt-radiotherapy-primary-plan-dose.json | Primary Plan Dose | trial-use | | cgp | 2026-05 | hl7 | Context: | Type:boolean | Mod:0 | 7 |
| hl7.fhir.us.codex-radiation-therapy | R4 | StructureDefinition-codexrt-radiotherapy-uniform-fractionation.json | Uniform Fractionation | trial-use | | cgp | 2026-05 | hl7 | Context: | Type:boolean | Mod:0 | 1 |
| hl7.fhir.us.codex-radiation-therapy | R4 | StructureDefinition-codexrt-radiotherapy-course-involves-reirradiation.json | Course Involves Reirradiation | trial-use | | cgp | 2026-05 | hl7 | Context: Procedure,ServiceRequest,ActivityDefinition | Type:boolean | Mod:0 | 3 |
| hl7.fhir.us.cimilabs | R4 | StructureDefinition-ref-range-nominal.json | Reference Range Nominal | draft | | | 2023-08 | hl7 | Context: Element | Type:CodeableConcept | Mod:0 | 4 |
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-ConditionEpisode.json | Extension UK Core Condition Episode | active | | | 2024-06 | hl7 | Context: Condition | Type:complex | Mod:0 | 1 |
| fhir.r4.nhsengland.stu1 | R4 | Extension-England-TypedDateTime.json | Extension England Typed Date Time | active | | | 2023-12 | hl7 | Context: Organization,OrganizationAffiliation | Type:complex | Mod:0 | |
| fhir.r4.nhsengland.stu1 | R4 | Extension-England-TypedPeriod.json | Extension England Typed Period | active | | | 2025-06 | hl7 | Context: Organization,OrganizationAffiliation,RelatedPerson | Type:complex | Mod:0 | 1 |
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-BookingOrganization.json | Extension UK Core Booking Organization | active | | | 2023-12 | hl7 | Context: Appointment | Type:complex | Mod:0 | 1 |
| fhir.nhs.uk.stu3.assets | R3 | Extension-eRS-AttachedByOrganisation-1.json | Extension-eRS-AttachedByOrganisation-1 | draft | | | 2024-10 | hl7 | Context: DocumentReference.content.attachment | Type:complex | Mod:0 | |
| signal.core.r4 | R4 | StructureDefinition-extension-SignalServiceRequestPatient.json | SignalServiceRequestPatient | draft | | | | hl7 | Context: ServiceRequest | Type:complex | Mod:0 | |
| ca.on.oh-dhdr | R4 | DispenseRemainingQuantity.json | DispenseRemainingQuantity | active | | | 2022-01 | hl7 | Context: MedicationDispense | Type:complex | Mod:0 | 4 |
| fhir.ca-bc.provider | R4 | StructureDefinition-bc-end-reason-extension.json | BC End Reason Extension | active | | | 2025-02 | hl7 | Context: Practitioner,Extension,ContactPoint,HumanName,Identifier,PractitionerRole.specialty,Address,Location.name,Organization.name,OrganizationAffiliation,PractitionerRole | Type:CodeableConcept | Mod:0 | 25 |
| hl7.fhir.us.mdi | R4 | StructureDefinition-Extension-tracking-number.json | Tracking Number | trial-use | 3 | pher | 2025-07 | hl7 | Context: Composition,DiagnosticReport | Type:Identifier | Mod:0 | 3 |
| fhir.ca-bc.provider | R4 | StructureDefinition-bc-owner-extension.json | BC Owner Extension | active | | | 2025-02 | hl7 | Context: Practitioner,Extension,ContactPoint,HumanName,Practitioner.communication,Identifier,PractitionerRole.specialty,Address,Organization.name,PractitionerRole,Practitioner.qualification | Type:Identifier | Mod:0 | 25 |
| fhir.ca-bc.provider | R4 | StructureDefinition-bc-license-status-extension.json | BC License Status Extension | active | | | 2025-02 | hl7 | Context: Practitioner,Organization | Type:complex | Mod:0 | 2 |
| fhir.iptpig | R4 | StructureDefinition-iptp-confirmation-status.json | IPTp Dose Confirmation Status | draft | | | 2026-06 | hl7 | Context: MedicationAdministration | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.breastcancer | R3 | StructureDefinition-cimi-entity-SpecimenTreatment-extension.json | BC SpecimenTreatment Extension | draft | | | 2018-08 | hl7 | Context: Element | Type:complex | Mod:0 | 2 |
| hl7.fhir.us.lower-extremity-skin-wound-assessment | R4 | StructureDefinition-TrendExt.json | Trend | draft | | | 2019-06 | hl7 | Context: Condition | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.directory-query | R4 | StructureDefinition-trustFramework.json | Trust Framework | active | | | 2022-12 | hl7 | Context: Element | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.davinci-pdex | R4 | StructureDefinition-base-ext-trustFramework.json | NDH Trust Framework | trial-use | 2 | fm | 2026-08 | hl7 | Context: Endpoint | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.directory-query | R4 | StructureDefinition-endpointType.json | Endpoint Type | active | | | 2022-12 | hl7 | Context: Element | Type:complex | Mod:0 | 1 |
| fhir.iptpig | R4 | StructureDefinition-iptp-reminder-anchor.json | IPTp Reminder Anchor | draft | | | 2026-06 | hl7 | Context: Communication | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.core | R4 | StructureDefinition-us-core-individual-sex.json | US Core Individual Sex Extension | trial-use | 5 | cgp | 2025-04 | hl7 | Context: Practitioner,FamilyMemberHistory,Patient,Person,RelatedPerson | Type:Coding | Mod:0 | 2 |
| hl7.fhir.us.davinci-ra | R4 | StructureDefinition-ra-payerCodingGapReportId.json | Payer Coding Gap Report Id Extension | trial-use | 1 | cqi | 2026-04 | hl7 | Context: MeasureReport | Type:id | Mod:0 | 1 |
| hl7.fhir.us.davinci-pas | R4 | StructureDefinition-extension-itemTraceNumber.json | Item Trace Number | trial-use | 4 | fm | 2026-06 | hl7 | Context: Claim.item,ClaimResponse.item,ClaimResponse.addItem,ExplanationOfBenefit.item | Type:Identifier | Mod:0 | 3 |
| hl7.fhir.us.vr-common-library | R4 | StructureDefinition-UnitOrAptNumber.json | UnitOrAptNumber Vital Records | active | | pher | 2026-06 | hl7 | Context: Address | Type:string | Mod:0 | 4 |
| hl7.fhir.us.spl | R5 | StructureDefinition-itemMarketingStatusDates.json | Manufactured Item Marketing Status Date Range | trial-use | 1 | brr | 2025-07 | hl7 | Context: ManufacturedItemDefinition | Type:Period | Mod:0 | 1 |
| hl7.fhir.us.vrdr | R4 | StructureDefinition-practitioner-role.json | Practitioner Role | active | | pher | 2024-10 | hl7 | Context: Practitioner | Type:code | Mod:0 | 2 |
| fhir.org.nz.ig.base | R4 | StructureDefinition-alias-type.json | AliasType | active | | | 2026-05 | hl7 | Context: Location.alias,Organization.alias | Type:CodeableConcept | Mod:0 | 2 |
| hl7.fhir.us.bfdr | R4 | StructureDefinition-Extension-role.json | Extension Parental Role | draft | | pher | 2025-08 | hl7 | Context: Extension,Observation,Encounter | Type:CodeableConcept | Mod:0 | 3 |
| hl7.fhir.us.vr-common-library | R4 | StructureDefinition-Extension-within-city-limits-indicator-vr.json | Within City Limits Indicator Vital Records | active | | pher | 2026-06 | hl7 | Context: Address | Type:Coding | Mod:0 | 1 |
| hl7.fhir.us.davinci-pas | R4 | StructureDefinition-extension-productOrServiceCodeEnd.json | Product or Service Code End | trial-use | 4 | fm | 2026-06 | hl7 | Context: Claim.item,ClaimResponse,ServiceRequest | Type:CodeableConcept | Mod:0 | 4 |
| hl7.fhir.us.cardio.ig | R4 | StructureDefinition-ValveInsuficiencyExt.json | Valor de la insuficiencia de válvula | draft | | | 2024-04 | hl7 | Context: Element | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.cardio.ig | R4 | StructureDefinition-ExplantTypeExt.json | Valores que acepta el tipo de explante. | draft | | | 2024-04 | hl7 | Context: Element | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.cardio.ig | R4 | StructureDefinition-ImplantTypeExt.json | Valores que acepta el tipo de implante. | draft | | | 2024-04 | hl7 | Context: Element | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.codex-radiation-therapy | R4 | StructureDefinition-codexrt-intrafraction-verification.json | Intrafraction Verification | trial-use | | cgp | 2026-05 | hl7 | Context: Procedure,ServiceRequest,ActivityDefinition | Type:complex | Mod:0 | 10 |
| hl7.fhir.us.cdmh | R4 | StructureDefinition-cdmh-pcornet-vital-source.json | PCORNet Vital Source | draft | | | 2019-09 | hl7 | Context: Observation.code | Type:code | Mod:0 | 1 |
| hl7.fhir.us.davinci-vbpr | R4 | StructureDefinition-weight.json | Weight | trial-use | 1 | cqi | 2026-06 | hl7 | Context: Measure.relatedArtifact | Type:decimal | Mod:0 | 1 |
| hl7.fhir.us.cqfmeasures | R4 | StructureDefinition-cqfm-weight.json | CQFM Weight | active | | cqi | 2025-08 | hl7 | Context: RelatedArtifact | Type:decimal | Mod:0 | 1 |
| hl7.fhir.us.mcc | R4 | StructureDefinition-custodian.json | Custodian R5 backport | active | | pc | 2024-08 | hl7 | Context: CarePlan | Type:Reference | Mod:0 | 1 |
| hl7.fhir.us.icsr-ae-reporting | R4 | StructureDefinition-icsr-ext-eventenddate.json | EventEndDate | draft | | | 2023-08 | hl7 | Context: AdverseEvent.date | Type:dateTime | Mod:0 | 1 |
| hl7.fhir.us.breastcancer | R3 | StructureDefinition-cimi-entity-CollectionTime-extension.json | BC CollectionTime Extension | draft | | | 2018-08 | hl7 | Context: Element | Type:dateTime,Period | Mod:0 | 2 |
| fhir.kisumuhie | R4 | StructureDefinition-mnch-place-of-delivery.json | MNCH Place of Delivery | draft | | | 2026-06 | hl7 | Context: Element | Type:CodeableConcept | Mod:0 | 1 |
| fhir.iptpig | R4 | StructureDefinition-iptp-resolution-status.json | IPTp Issue Resolution Status | draft | | | 2026-06 | hl7 | Context: Observation | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.breastcancer | R3 | StructureDefinition-cimi-context-VerificationStatus-extension.json | BC VerificationStatus Extension | draft | | | 2018-08 | hl7 | Context: Element | Type:complex | Mod:0 | 1 |
| hl7.fhir.us.icsr-ae-reporting | R4 | StructureDefinition-icsr-ext-authorprimarysource.json | AuthorPrimarySource | draft | | | 2023-08 | hl7 | Context: Composition.author | Type:boolean | Mod:0 | 1 |
| fhir.kisumuhie | R4 | StructureDefinition-mnch-obstructed-labour.json | MNCH Obstructed Labour | draft | | | 2026-06 | hl7 | Context: Element | Type:boolean | Mod:0 | 1 |
| fhir.argonaut.questionnaire | R3 | StructureDefinition-extension-multipleAnd.json | Argonaut SearchParameter Multiple AND Extension | active | | | 2018-04 | hl7 | Context: SearchParameter | Type:complex | Mod:0 | |
| fhir.argonaut.questionnaire | R3 | StructureDefinition-extension-multipleOr.json | Argonaut SearchParameter Multiple OR Extension | active | | | 2018-04 | hl7 | Context: SearchParameter | Type:complex | Mod:0 | |
| fhir.kisumuhie | R4 | StructureDefinition-mnch-baby-immunization-started.json | MNCH Baby Immunization Started | draft | | | 2026-06 | hl7 | Context: Element | Type:boolean | Mod:0 | 1 |
| fhir.kisumuhie | R4 | StructureDefinition-mnch-preeclampsia-eclampsia.json | MNCH Pre-eclampsia/Eclampsia | draft | | | 2026-06 | hl7 | Context: Element | Type:boolean | Mod:0 | 1 |
| fhir.kisumuhie | R4 | StructureDefinition-mnch-resuscitation-done.json | MNCH Resuscitation Done | draft | | | 2026-06 | hl7 | Context: Element | Type:boolean | Mod:0 | 1 |
| fhir.iptpig | R4 | StructureDefinition-iptp-administration-method.json | IPTp Administration Method | draft | | | 2026-06 | hl7 | Context: MedicationAdministration | Type:CodeableConcept | Mod:0 | 1 |
| fhir.kisumuhie | R4 | StructureDefinition-mnch-mother-haart-status.json | MNCH Mother on HAART | draft | | | 2026-06 | hl7 | Context: Element | Type:CodeableConcept | Mod:0 | 1 |
| fhir.kisumuhie | R4 | StructureDefinition-mnch-fp-counseling.json | MNCH Family Planning Counseling | draft | | | 2026-06 | hl7 | Context: Element | Type:CodeableConcept | Mod:0 | 1 |
| fhir.iptpig | R4 | StructureDefinition-iptp-provider-msisdn.json | IPTp Provider MSISDN | draft | | | 2026-06 | hl7 | Context: Practitioner | Type:string | Mod:0 | 1 |
| hl7.fhir.us.lower-extremity-skin-wound-assessment | R4 | StructureDefinition-WoundAssessmentInterpretationExt.json | WoundAssessmentInterpretation | draft | | | 2019-06 | hl7 | Context: Condition | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.lower-extremity-skin-wound-assessment | R4 | StructureDefinition-WoundGradationExt.json | WoundGradationextension | draft | | | 2019-06 | hl7 | Context: Condition | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.lower-extremity-skin-wound-assessment | R4 | StructureDefinition-WoundInternalItemOrBodyStructureVisibleExt.json | WoundInternalItemOrBodyStructureVisibleextension | draft | | | 2019-06 | hl7 | Context: Condition | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.lower-extremity-skin-wound-assessment | R4 | StructureDefinition-WoundTypeEtiologyExt.json | WoundTypeEtiologyextension | draft | | | 2019-06 | hl7 | Context: Condition | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.davinci-atr | R4 | StructureDefinition-ext-changeType.json | Group Member Change Information | trial-use | 2 | fm | 2019-09 | hl7 | Context: Group.member | Type:code | Mod:0 | 1 |
| hl7.fhir.us.davinci-pdex | R4 | StructureDefinition-pdex-mtls-signedobject-extension.json | mTLS Signed Object | trial-use | 2 | fm | 2026-08 | hl7 | Context: Endpoint | Type:complex | Mod:0 | 1 |
| fhir.ph.core | R4 | StructureDefinition-race.json | Race | draft | | | 2026-06 | hl7 | Context: Patient | Type:CodeableConcept | Mod:0 | 1 |
| hl7.fhir.us.military-service | R4 | StructureDefinition-military-service-veteran-status.json | us-veteran-status | active | | | 2025-10 | hl7 | Context: Element | Type:boolean | Mod:0 | 2 |
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