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| Package | Version | Identity | Name/Title | Status | FMM | WG | Date | Realm | Auth | DataType | Usage # |
|---|---|---|---|---|---|---|---|---|---|---|---|
| hl7.fhir.au.base | R4 | StructureDefinition-change-description.json | Change Description | trial-use | 1 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-medication-strength.json | Medication Strength | trial-use | 1 | 2026-07 | au | hl7 | Extension | ||
| hl7.fhir.au.base | R4 | StructureDefinition-medication-brand-name.json | Medication Brand Name | trial-use | 1 | 2026-07 | au | hl7 | Extension | ||
| hl7.fhir.au.base | R4 | StructureDefinition-medication-generic-name.json | Medication Generic Drug Name | trial-use | 1 | 2026-07 | au | hl7 | Extension | ||
| hl7.fhir.au.base | R4 | StructureDefinition-dispense-number.json | Dispense Number | trial-use | 2 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-subsidised-concurrent-supply.json | Subsidised Concurrent Supply | trial-use | 2 | 2026-07 | au | hl7 | Extension | 2 | |
| hl7.fhir.au.base | R4 | StructureDefinition-medication-long-term.json | Long Term | trial-use | 2 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-veteran-status.json | Australian Veteran Status | trial-use | 1 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-ethnicity.json | Ethnicity | trial-use | 0 | 2026-07 | au | hl7 | Extension | ||
| hl7.fhir.au.base | R4 | StructureDefinition-closing-the-gap-registration.json | Closing the Gap Registration | trial-use | 3 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-indigenous-status.json | Australian Indigenous Status | trial-use | 4 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-date-of-arrival.json | Date of Arrival in Australia | trial-use | 1 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-ahpraprofession-details.json | Ahpra Profession Details | deprecated | 1 | 2026-07 | au | hl7 | Extension | ||
| hl7.fhir.au.base | R4 | StructureDefinition-ahpraregistration-details.json | Ahpra Registration Details | deprecated | 1 | 2026-07 | au | hl7 | Extension | ||
| hl7.fhir.ca.baseline | R4 | StructureDefinition-ext-rolestatus.json | Extension: RoleStatus | draft | 2024-08 | ca | hl7 | Extension | 1 | ||
| hl7.fhir.au.base | R4 | StructureDefinition-result-copies-to.json | Result Copies To | deprecated | 1 | 2026-07 | au | hl7 | Extension | ||
| hl7.fhir.au.ereq | R4 | StructureDefinition-au-erequesting-displaysequence.json | AU eRequesting Display Sequence | trial-use | 1 | 2026-09 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.ereq | R4 | StructureDefinition-au-erequesting-fastingprecondition.json | AU eRequesting Fasting Precondition | trial-use | 1 | 2026-09 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-address-identifier.json | Address Identifier | trial-use | 1 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-medication-type.json | Medication Type | trial-use | 2 | 2026-07 | au | hl7 | Extension | 5 | |
| hl7.fhir.au.base | R4 | StructureDefinition-contact-purpose.json | Contact Purpose | trial-use | 1 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-name-context.json | Name Context | trial-use | 1 | 2026-07 | au | hl7 | Extension | ||
| hl7.fhir.au.base | R4 | StructureDefinition-ihi-record-status.json | IHI Record Status | trial-use | 3 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-au-assigningauthority.json | HL7 V2 Assigning Authority | trial-use | 3 | 2026-07 | au | hl7 | Extension | 2 | |
| hl7.fhir.au.base | R4 | StructureDefinition-ihi-verified-date.json | IHI Verification Date | trial-use | 1 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-ihi-status.json | IHI Status | trial-use | 3 | 2026-07 | au | hl7 | Extension | 1 | |
| hl7.fhir.au.base | R4 | StructureDefinition-identifier-routability.json | Identifier Routability | trial-use | 2 | 2026-07 | au | hl7 | Extension | 2 | |
| hl7.fhir.au.base | R4 | StructureDefinition-date-accuracy-indicator.json | Date Accuracy Indicator | trial-use | 2 | 2026-07 | au | hl7 | Extension | 2 | |
| ee.fhir.base | R5 | StructureDefinition-ee-date-accuracy-indicator.json | EEBase Date Accuracy Indicator | active | 2025-11 | ee | hl7 | Extension | 1 | ||
| hl7.fhir.au.base | R4 | StructureDefinition-au-timezone.json | Australian Time Zone | deprecated | 1 | 2026-07 | au | hl7 | Extension | 2 | |
| hl7.fhir.uv.deqm | R4 | StructureDefinition-deqm-calculatedDate.json | DEQM Calculated Date Extension | trial-use | 4 | cqi | 2018-06 | uv | hl7 | Extension | 3 |
| hl7.fhir.us.davinci-deqm | R4 | StructureDefinition-extension-calculatedDate.json | DEQM Calculated Date Extension | trial-use | 4 | cqi | 2018-06 | us | hl7 | Extension | 3 |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-target-feature-assertion.json | Target Feature Assertion | draft | 2 | fhir | 2022-08 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-feature-assertion.json | Feature Assertion | draft | 2 | fhir | 2022-08 | uv | hl7 | Extension | |
| ehealth4u.package | R4 | CYEHREXTPartofPractitionerRole.StructureDefinition.json | Cyprus EHR Extension: PartOfPractitionerRole | draft | Extension | 2 | |||||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-encounter-recordLinkage.json | Encounter Record Linkage | trial-use | 1 | pa | 2025-11 | uv | hl7 | Extension | |
| nictiz.fhir.nl.r4.nl-core | R4 | ext-EdifactReferenceNumber.json | ext EdifactReferenceNumber | draft | nl | Extension | 1 | ||||
| hl7-france-fhir.administrative-2022 | R4 | fr-contact-identifier-R4.structuredefinition.json | FrPatientContactIdentifier | active | 2019-07 | Extension | 1 | ||||
| fhir.r4.wales.test | R4 | Extension-DataStandardsWales-DocumentErrorStatus.json | Extension Data Standards Wales Document Error Status | draft | 2025-09 | us | hl7 | Extension | 1 | ||
| ihe.iti.mhd | R4 | StructureDefinition-ihe-full-text-search-match-snippet.json | Full-Text Search Match Snippet | active | 2026-06 | uv | ihe | Extension | 2 | ||
| hl7.fhir.us.ecr.r4b | R4B | StructureDefinition-us-ph-initiation-reason-extension.json | US Public Health Initiation Reason Extension | active | pher | 2024-10 | us | hl7 | Extension | ||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-servicerequest-order-callback-phone-number.json | ServiceRequest Order Callback Phone Number | trial-use | 0 | oo | 2023-12 | uv | hl7 | Extension | |
| ihe.iti.mhd | R4 | StructureDefinition-ihe-full-text-search-match-total-hits.json | Full-Text Search Match Total Hits | active | 2026-06 | uv | ihe | Extension | 2 | ||
| hl7.fhir.us.carin-rtpbc | R4 | StructureDefinition-rtpbc-benefitRestriction.json | RTPBC benefitRestriction Extension | trial-use | 1 | phx | 2020-05 | us | hl7 | Extension | 2 |
| hl7.fhir.us.carin-rtpbc | R4 | StructureDefinition-rtpbc-relatedCoverage.json | RTPBC relatedCoverage Extension | trial-use | 1 | phx | 2026-02 | us | hl7 | Extension | 2 |
| hl7.fhir.us.carin-rtpbc | R4 | StructureDefinition-rtpbc-nextAvailableFillDate.json | RTPBC nextAvailableFillDate Extension | trial-use | 1 | phx | 2025-12 | us | hl7 | Extension | 2 |
| hl7.fhir.us.carin-rtpbc | R4 | StructureDefinition-rtpbc-formularyStatus.json | RTPBC formularyStatus Extension | trial-use | 1 | phx | 2025-10 | us | hl7 | Extension | 2 |
| hl7.fhir.us.carin-rtpbc | R4 | StructureDefinition-rtpbc-preferenceLevel.json | RTPBC preferenceLevel Extension | trial-use | 1 | phx | 2025-12 | us | hl7 | Extension | 2 |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-valueset-expand-group.json | ValueSet Expand Group | deprecated | 1 | vocab | 2019-10 | uv | hl7 | Extension | |
| hl7.fhir.uv.tools | R5 | StructureDefinition-valueset-parameter.json | ValueSet Parameter Declaration | informative | 0 | fhir | 2026-09 | uv | hl7 | Extension | |
| hl7.fhir.uv.tools | R5 | StructureDefinition-binding-parameter.json | Binding Parameter Declaration | informative | 0 | fhir | 2026-09 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-valueset-supplement.json | ValueSet Supplement | trial-use | 3 | vocab | 2020-12 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-obligations-profile.json | Obligations Profile | draft | 0 | fhir | 2022-08 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-capabilitystatement-search-parameter-combination.json | CapabilityStatement Search Parameter Combination | trial-use | 3 | fhir | 2022-08 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-capabilitystatement-search-parameter-use.json | CapabilityStatement Search Parameter Use | trial-use | 2 | fhir | 2022-08 | uv | hl7 | Extension | |
| umcterminologies.org | R5 | StructureDefinition-administration-method.json | Pharmaceutical dose form - AdministrationMethod | active | 2026-08 | uv | Extension | 1 | |||
| umcterminologies.org | R5 | StructureDefinition-basic-dose-form.json | Pharmaceutical dose form - BasicDoseForm | active | 2026-08 | uv | Extension | 1 | |||
| umcterminologies.org | R5 | StructureDefinition-intended-site.json | Pharmaceutical dose form - IntendedSite | active | 2026-08 | uv | Extension | 1 | |||
| umcterminologies.org | R5 | StructureDefinition-release-characteristics.json | Pharmaceutical dose form - ReleaseCharacteristics | active | 2026-08 | uv | Extension | 1 | |||
| tiplu.maia.schnittstellendefinition | R4 | StructureDefinition-MaiaRiskAssessmentDefinitionDescriptionExtension.json | MaiaRiskAssessmentDefinition Description Extension | active | 2025-04 | Extension | 1 | ||||
| tiplu.maia.schnittstellendefinition | R4 | StructureDefinition-MaiaRiskAssessmentDefinitionNameExtension.json | MaiaRiskAssessmentDefinition Name Extension | active | 2025-04 | Extension | 1 | ||||
| hl7se.fhir.base | R4 | StructureDefinition-SEBaseAddressPersonExtension.json | SE extension for official address types | active | 2026-09 | se | hl7 | Extension | 2 | ||
| umcterminologies.org | R5 | StructureDefinition-parent-phpid.json | Parent PhPID | active | 2026-08 | uv | Extension | 1 | |||
| tiplu.maia.schnittstellendefinition | R4 | StructureDefinition-MaiaRiskAssessmentDefinitionSeverity.json | MaiaRiskAssessmentDefinition Severity Extension | active | 2025-04 | Extension | 1 | ||||
| hl7.fhir.essilux.core | R4 | ELCoreExtensionUsedfor.json | EL Core Extension Used For | active | 2023-05 | essilux | hl7 | Extension | 1 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-serviceassignment.json | CH ALIS Extension ServiceAssignment | active | 2026-06 | ch | hl7 | Extension | 2 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-sessionannexb.json | CH ALIS Extension SessionAnnexB | active | 2026-06 | ch | hl7 | Extension | 2 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-diagnosisconfidential.json | CH ALIS Extension DiagnosisConfidential | active | 2026-06 | ch | hl7 | Extension | 1 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-form.json | CH ALIS Extension Form | active | 2026-06 | ch | hl7 | Extension | 1 | ||
| dk.ehealth.sundhed.fhir.ig.core | R4 | StructureDefinition-patient-interpreterRequired.json | Interpreter required | active | 2026-09 | dk | Extension | 1 | |||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-itemnumber.json | CH ALIS Extension ItemNumber | active | 2026-06 | ch | hl7 | Extension | 1 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-orderdate.json | CH ALIS Extension OrderDate | active | 2026-06 | ch | hl7 | Extension | 1 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-orderid.json | CH ALIS Extension OrderID | active | 2026-06 | ch | hl7 | Extension | 1 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-parameterv40.json | CH ALIS Extension ParameterV40 | active | 2026-06 | ch | hl7 | Extension | 2 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-refitemnumber.json | CH ALIS Extension RefItemNumber | active | 2026-06 | ch | hl7 | Extension | 1 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-sectioncode.json | CH ALIS Extension SectionCode | active | 2026-06 | ch | hl7 | Extension | 1 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-serviceitemerrorcode.json | CH ALIS Extension ServiceItemErrorCode | active | 2026-06 | ch | hl7 | Extension | 1 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-sessionid.json | CH ALIS Extension SessionID | active | 2026-06 | ch | hl7 | Extension | 1 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-tpvalue.json | CH ALIS Extension TPValue | active | 2026-06 | ch | hl7 | Extension | 1 | ||
| ch.fhir.ig.ch-alis-connect | R4 | StructureDefinition-ch-alis-connect-ext-termination.json | CH ALIS Extension Termination | active | 2026-06 | ch | hl7 | Extension | 1 | ||
| ca.infoway.io.ca-ext-reg | R4 | CurrentWaitTime.json | HealthcareService Current WaitTime | draft | Extension | 1 | |||||
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-ServiceRequestMethod.json | Extension UK Core Service Request Method | retired | 2022-05 | us | hl7 | Extension | |||
| ca.infoway.io.ca-ext-reg | R4 | AcceptingNewPatients.json | Location Accepting New Patients | draft | Extension | 4 | |||||
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-SourceOfServiceRequest.json | Extension UK Core Source Of Service Request | active | 2022-12 | us | hl7 | Extension | 2 | ||
| hl7.fhir.uv.application-feature | R5 | StructureDefinition-feature.json | Feature | trial-use | 2 | fhir | 2026-06 | uv | hl7 | Extension | 1 |
| il.core.fhir.r4 | R4 | StructureDefinition-ext-device-dispense-when-handed-over.json | Ext: ILCore Device Dispense When Handed Over | active | 2026-09 | il | national | Extension | 1 | ||
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-identifier-status.json | NDH Identifier Status | trial-use | 4 | pa | 2017-11 | us | hl7 | Extension | 10 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-logo.json | NDH Logo | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 3 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-endpoint-reference.json | NDH Endpoint Reference | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 2 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-newpatients-characteristics.json | NDH New Patients Characteristics | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-rating-details.json | NDH Rating Details | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-endpoint-environment-type.json | NDH Endpoint EnvironmentType | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-org-alias-type.json | NDH Organization Alias Type | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-accessibility.json | NDH Accessibility | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 2 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-security-details.json | NDH Security Details | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-verification-status.json | NDH Verification Status | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 11 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-dynamicRegistration.json | NDH Dynamic Registration | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-location-reference.json | NDH Location Reference | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 3 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-endpointAccessControlMechanism.json | NDH Endpoint Access Control Mechanism | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-delivery-method.json | NDH Delivery Method | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-implementation-guide.json | NDH Implementation Guide Supported | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-communication-proficiency.json | NDH Communication Proficiency | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-service-or-program-requirement.json | NDH HealthcareService or Program Requirement | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-requiredDocument.json | NDH Required Document | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-network-reference.json | NDH Network Reference | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 2 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-endpoint-rank.json | NDH Endpoint Rank | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-fundingSource.json | NDH Funding Source | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 2 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-insuranceplan-reference.json | NDH InsurancePlan Reference | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-org-description.json | NDH Org Description | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-secureExchangeArtifacts.json | NDH Secure Exchange Artifacts | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 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 | 2026-09 | us | hl7 | Extension | 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 | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-ndh-age-range.json | NDH Age Range | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-ndh-age-group.json | NDH Age Group | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-associatedServers.json | NDH Associated Servers | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-newpatients.json | NDH New Patients | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 3 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-rating.json | NDH Rating | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 4 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-language-speak.json | NDH Language Speak | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 3 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-paymentAccepted.json | NDH Payment Accepted | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 2 |
| hl7.fhir.us.ndh | R4 | StructureDefinition-base-ext-org-alias-period.json | NDH Organization Alias Period | trial-use | 4 | pa | 2026-09 | us | hl7 | Extension | 1 |
| hl7.fhir.uv.smart-scheduling-links | R4 | StructureDefinition-patient-type.json | Patient Type | trial-use | 2 | pa | 2026-09 | uv | hl7 | Extension | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-BackgroundColor-extension.json | Background Color | trial-use | 2 | claims | 2026-08 | us | hl7 | Extension | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-ForegroundColor-extension.json | Foreground Color | trial-use | 2 | claims | 2026-08 | us | hl7 | Extension | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-HighlightColor-extension.json | Highlight Color | trial-use | 2 | claims | 2026-08 | us | hl7 | Extension | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-QRCode-extension.json | QR Code | trial-use | 2 | claims | 2026-08 | us | hl7 | Extension | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-Barcode-extension.json | Barcode | trial-use | 2 | claims | 2026-08 | us | hl7 | Extension | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-Logo-extension.json | Logo | trial-use | 2 | claims | 2026-08 | us | hl7 | Extension | 1 |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-SupportingImage-extension.json | Supporting image | trial-use | 2 | claims | 2026-08 | us | hl7 | Extension | 1 |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-messageheader-response-request.json | MessageHeader Response Request | trial-use | 3 | inm | 2017-01 | uv | hl7 | Extension | |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-AdditionalCardInformation-extension.json | Additional Insurance Card Information | trial-use | 2 | claims | 2026-08 | us | hl7 | Extension | 1 |
| hl7.fhir.uv.fhir-for-fair | R4B | StructureDefinition-relatedArtifactResourceReference.json | ResourceReference [RelatedArtifact] | active | 2024-01 | uv | hl7 | Extension | 1 | ||
| hl7.fhir.uv.fhir-for-fair | R4B | StructureDefinition-relatedArtifactType.json | Type [RelatedArtifact] | active | 2024-01 | uv | hl7 | Extension | 1 | ||
| hl7.fhir.uv.fhir-for-fair | R4B | StructureDefinition-relatedArtifactClassifier.json | Classifier [RelatedArtifact] | active | 2024-01 | uv | hl7 | Extension | 1 | ||
| ndhm.in | R4 | StructureDefinition-Claim-SupportingInfoRequirement.json | ClaimSupportingInfoRequirement | draft | 2025-03 | in | national | Extension | 1 | ||
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-DeviceReference.json | Extension UK Core Device Reference | active | 2024-07 | us | hl7 | Extension | 2 | ||
| hl7.fhir.uv.tools | R5 | StructureDefinition-additional-resource.json | Additional Resource Flag | informative | 4 | fhir | 2026-09 | uv | hl7 | Extension | |
| hl7.fhir.us.insurance-card | R4 | StructureDefinition-C4DIC-ColorPalette-extension.json | Color Palette | trial-use | 2 | claims | 2026-08 | us | hl7 | Extension | 1 |
| nhsdigital.fhir.stu3 | R3 | Extension-DCH-SignificantIndividual-1.json | Extension-DCH-SignificantIndividual-1 | draft | 2018-01 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-DCH-ParentalResponsibility-1.json | Extension-DCH-ParentalResponsibility-1 | draft | 2018-01 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-DCH-Link-1.json | Extension-DCH-Link-1 | draft | 2018-01 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-DCH-ProfessionalContactReason-1.json | Extension-DCH-ProfessionalContactReason-1 | draft | 2018-01 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-PDS-SystemEffectivePeriod-1.json | Extension-PDS-SystemEffectivePeriod-1 | draft | 2018-09 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-EMS-FailsafeAlertEscalationLevel-1.json | Extension-EMS-FailsafeAlertEscalationLevel-1 | draft | 2017-11 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-DCH-HouseholdMember-1.json | Extension-DCH-HouseholdMember-1 | draft | 2019-02 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-EMS-FailsafeAlertSeverityLevel-1.json | Extension-EMS-FailsafeAlertSeverityLevel-1 | draft | 2017-11 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-EMS-MessageEventType-1.json | Extension-EMS-MessageEventType-1 | draft | 2017-11 | hl7 | Extension | 1 | |||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-codesystem-otherName.json | CodeSystem Other Name | deprecated | 3 | vocab | 2020-12 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-capabilitystatement-declared-profile.json | CapabilityStatement Declared Profile | deprecated | 2 | fhir | 2022-08 | uv | hl7 | Extension | |
| ca.on.oh.erec | R4 | ext-primary-type.json | IsPrimary | draft | ca | national | Extension | 1 | |||
| hl7.fhir.us.davinci-ra | R4 | StructureDefinition-ra-groupReference.json | Group Reference Extension | trial-use | 2 | cqi | 2026-09 | us | hl7 | Extension | 2 |
| hl7.fhir.essilux.core | R4 | ELCoreExtensionBalance.json | EL Core Extension Lens Balance | active | 2023-05 | essilux | hl7 | Extension | 1 | ||
| hl7.fhir.essilux.core | R4 | ELCoreExtensionLenscleaner.json | EL Core Extension Lens Cleaner | active | 2023-05 | essilux | hl7 | Extension | 1 | ||
| hl7.fhir.essilux.core | R4 | ELCoreExtensionSpeciality.json | EL Core Extension Len Speciality | active | 2023-05 | essilux | hl7 | Extension | 1 | ||
| hl7.fhir.essilux.core | R4 | ELCoreExtensionDisinfectionSolution.json | EL Core Extension Lens Disinfection Solution | active | 2023-05 | essilux | hl7 | Extension | 1 | ||
| hl7.fhir.essilux.core | R4 | ELCoreExtensionLensType.json | EL Core Extension Lens Type | active | 2023-05 | essilux | hl7 | Extension | 1 | ||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-medication-manufacturer.json | Medication Manufacturer | trial-use | 1 | phx | 2025-07 | uv | hl7 | Extension | |
| hl7.fhir.ca.baseline | R4 | StructureDefinition-ext-deceased.json | Extension: Individual is deceased flag or date | draft | 2024-08 | ca | hl7 | Extension | 1 | ||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-valueset-select-by-map.json | Select By Map | trial-use | 1 | vocab | 2026-09 | uv | hl7 | Extension | |
| hl7.fhir.uv.tools | R5 | StructureDefinition-select-by-map.json | Select By Map | deprecated | 1 | fhir | 2026-09 | uv | hl7 | Extension | |
| hl7.fhir.us.carin-rtpbc | R4 | StructureDefinition-rtpbc-isAlternative.json | RTPBC isAlternative Extension | trial-use | 1 | phx | 2020-05 | us | hl7 | Extension | 2 |
| hl7.fhir.us.core | R4 | StructureDefinition-us-core-interpreter-needed.json | US Core Interpreter Needed Extension | trial-use | 2 | cgp | 2024-09 | us | hl7 | Extension | 2 |
| hl7.fhir.be.medication | R4 | StructureDefinition-BeExtMedicationLineRegistrationStatus.json | BeExtMedicationLineRegistrationStatus | active | 2026-08 | be | hl7 | Extension | 1 | ||
| hl7.fhir.us.core | R4 | StructureDefinition-us-core-authentication-time.json | US Core Authentication Time Extension | deprecated | 2 | cgp | 2024-10 | us | hl7 | Extension | |
| hl7.fhir.us.home-lab-report.r4 | R4 | StructureDefinition-Extension-sex-for-clinical-use.json | Extension - Sex For Clinical Use | active | 2022-10 | us | hl7 | Extension | |||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-NominatedPharmacy-1.json | Extension-CareConnect-GPC-NominatedPharmacy-1 | active | 2017-11 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-NominatedPharmacy-1.json | Extension-CareConnect-NominatedPharmacy-1 | draft | 2018-11 | hl7 | Extension | 6 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-DeathNotificationStatus-1.json | Extension-CareConnect-GPC-DeathNotificationStatus-1 | active | 2018-02 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-DeathNotificationStatus-1.json | Extension-CareConnect-DeathNotificationStatus-1 | draft | 2018-11 | hl7 | Extension | 6 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-MainLocation-1.json | Extension-CareConnect-GPC-MainLocation-1 | active | 2017-07 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-MainLocation-1.json | Extension-CareConnect-MainLocation-1 | draft | 2018-11 | hl7 | Extension | 4 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-NHSNumberVerificationStatus-1.json | Extension-CareConnect-GPC-NHSNumberVerificationStatus-1 | active | 2017-06 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-NHSNumberVerificationStatus-1.json | Extension-CareConnect-NHSNumberVerificationStatus-1 | draft | 2018-11 | hl7 | Extension | 6 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-RegistrationDetails-1.json | Extension-CareConnect-GPC-RegistrationDetails-1 | active | 2017-06 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-RegistrationDetails-1.json | Extension-CareConnect-RegistrationDetails-1 | draft | 2017-06 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-GPConnect-CareSettingType-1.json | Extension-GPConnect-CareSettingType-1 | draft | 2018-01 | hl7 | Extension | ||||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-EthnicCategory-1.json | Extension-CareConnect-GPC-EthnicCategory-1 | active | 2017-06 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-EthnicCategory-1.json | Extension-CareConnect-EthnicCategory-1 | draft | 2018-11 | hl7 | Extension | 6 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-DCH-ReferralRequestMethod-1.json | Extension-DCH-ReferralRequestMethod-1 | draft | 2018-01 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-ReferralRequestMethod-1.json | Extension-CareConnect-ReferralRequestMethod-1 | draft | 2019-07 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-ReligiousAffiliation-1.json | Extension-CareConnect-GPC-ReligiousAffiliation-1 | active | 2017-06 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-ReligiousAffiliation-1.json | Extension-CareConnect-ReligiousAffiliation-1 | draft | 2018-11 | hl7 | Extension | 6 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-ResidentialStatus-1.json | Extension-CareConnect-GPC-ResidentialStatus-1 | active | 2017-06 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-ResidentialStatus-1.json | Extension-CareConnect-ResidentialStatus-1 | draft | 2018-11 | hl7 | Extension | 6 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-DCH-SourceOfReferral-1.json | Extension-DCH-SourceOfReferral-1 | draft | 2018-01 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-SourceOfReferral-1.json | Extension-CareConnect-SourceOfReferral-1 | draft | 2019-08 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-TreatmentCategory-1.json | Extension-CareConnect-GPC-TreatmentCategory-1 | active | 2017-06 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-TreatmentCategory-1.json | Extension-CareConnect-TreatmentCategory-1 | draft | 2018-11 | hl7 | Extension | 6 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-NHSCommunication-1.json | Extension-CareConnect-GPC-NHSCommunication-1 | active | 2017-06 | hl7 | Extension | 2 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-EOL-NHSCommunication-1.json | Extension-EOL-NHSCommunication-1 | draft | 2018-08 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-NHSCommunication-1.json | Extension-CareConnect-NHSCommunication-1 | draft | 2018-11 | hl7 | Extension | 8 | |||
| hl7.fhir.au.base | R4 | StructureDefinition-no-fixed-address.json | No Fixed Address | deprecated | 2 | 2026-07 | au | hl7 | Extension | ||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-diagnosticReport-locationPerformed.json | DiagnosticReport Location Performed | deprecated | 3 | oo | 2015-02 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-observation-focusCode.json | Observation Focal Subject Code | deprecated | 3 | oo | 2015-03 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-entered-in-error-status.json | Entered In Error Status | trial-use | 4 | fhir | 2026-09 | uv | hl7 | Extension | |
| hl7.fhir.uv.tools | R5 | StructureDefinition-entered-in-error-status.json | Entered In Error Status | trial-use | 4 | fhir | 2026-09 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-web-source.json | Web Source | trial-use | 4 | fhir | 2026-09 | uv | hl7 | Extension | |
| hl7.fhir.uv.tools | R5 | StructureDefinition-web-source.json | Web Source | deprecated | 4 | fhir | 2026-09 | uv | hl7 | Extension | |
| hl7.eu.fhir.idea4rc | R4 | StructureDefinition-same-hospital.json | Same Hospital | active | 2026-09 | eu | hl7 | Extension | 6 | ||
| csiro.fhir.au.smartforms | R4 | StructureDefinition-ContainedResourceReference.json | Contained Resource Reference | draft | 2026-09 | au | Extension | ||||
| niceprofiling.v23q1 | R3 | NICE-EncryptedData.json | NICE-EncryptedData | active | Extension |
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