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| Package | Version | Identity | Name/Title | Status | FMM | WG | Date | Realm | Auth | DataType | Usage # |
|---|---|---|---|---|---|---|---|---|---|---|---|
| pharmacyeclaim.trial | R4 | profile-ext-isSupply.StructureDefinition.json | IsSupply | draft | Extension | ||||||
| laniado.test.fhir.r4 | R4 | StructureDefinition-ext-encounter-s-yechida.json | Extension: Internal Encounter Class/Type | draft | Extension | 1 | |||||
| nictiz.fhir.nl.stu3.zib2017 | R3 | zib-Medication-AdditionalInformation.json | HCIM AdditionalInformation | active | nl | hl7 | Extension | 4 | |||
| hl7.fhir.be.infsec | R4 | StructureDefinition-be-ext-pseudonymization.json | Pseudonymization Extension | active | 2026-06 | be | hl7 | Extension | 1 | ||
| hl7.fhir.be.infsec | R4 | StructureDefinition-be-ext-pseudonymized-content.json | Pseudonymized content Extension | active | 2026-06 | be | hl7 | Extension | |||
| dk.ehealth.sundhed.fhir.ig.core | R4 | StructureDefinition-ehealth-modifier-role.json | Modified role | active | 2026-08 | dk | Extension | 7 | |||
| uk.nhsdigital.r4.test | R4 | Extension-NHSDigital-MessageHeader-messageId.StructureDefinition.json | ExtensionMessageHeadermessageId | draft | Extension | ||||||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-rendering-xhtml.json | XHTML Representation | trial-use | 3 | fhir | 2014-04 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-rendering-markdown.json | Markdown | trial-use | 3 | fhir | 2014-04 | uv | hl7 | Extension | |
| hl7.fhir.us.cimilabs | R4 | StructureDefinition-ref-range-nominal.json | Reference Range Nominal | draft | 2023-08 | us | hl7 | Extension | 4 | ||
| nictiz.fhir.nl.stu3.zib2017 | R3 | zib-Medication-MedicationTreatment.json | HCIM MedicationTreatment | active | nl | hl7 | Extension | 6 | |||
| ca.on.oh.erec | R4 | RoutingOptions.json | RoutingOptions | draft | ca | national | Extension | 2 | |||
| ca.on.ehr.r4 | R4 | RoutingOptions.json | RoutingOptions | active | ca | Extension | 2 | ||||
| ca.infoway.io.core | R4 | StructureDefinition-Routing-Options-EXT.json | RoutingOptions | trial-use | 2 | ca | national | Extension | 1 | ||
| ca.ab.fhir.aberec1 | R4 | StructureDefinition-ext-ResourceIdentifier.json | ResourceIdentifier | draft | 2025-10 | ca | Extension | 1 | |||
| ca.ab.fhir.aberec1 | R4 | StructureDefinition-ext-PerformerRole.json | PerformerRole | draft | 2025-10 | ca | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-ITK-MessageHandling-2.json | Extension-ITK-MessageHandling-2 | active | 2018-08 | hl7 | Extension | 1 | |||
| hl7.fhir.uv.saner | R4 | StructureDefinition-GeoLocation.json | Extension Attributes to associate with a Location Reference to simplify Geographic search | draft | pher | 2024-05 | uv | hl7 | Extension | 1 | |
| pharmacyeclaim.trial | R4 | ext-trace-number.StructureDefinition.json | CPHA trace number | draft | Extension | ||||||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-codesystem-effectiveDate.json | Code System EffectiveDate | deprecated | 1 | vocab | 2019-10 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-valueset-effectiveDate.json | Value Set Effective Date | deprecated | 1 | vocab | 2019-10 | uv | hl7 | Extension | |
| pharmacyeclaim.trial | R4 | profile-ext-medication-request-total-authorized-quantity.StructureDefinition.json | TotalAuthorizedQuantity | draft | Extension | ||||||
| pharmacyeclaim.trial | R4 | profile-ext-source-conformance-version.StructureDefinition.json | SourceConformanceVersion | draft | Extension | ||||||
| dk.ehealth.sundhed.fhir.ig.core | R4 | StructureDefinition-ehealth-patient-contactnote.json | Patient contact note | active | 2026-08 | dk | Extension | 2 | |||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-observation-sequelTo.json | Observation Sequel To | trial-use | 3 | oo | 2015-03 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-observation-replaces.json | Observation Replaces | trial-use | 3 | oo | 2015-03 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-patient-animal.json | Patient Animal | trial-use | 3 | pa | 2021-01 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-patient-knownNonDuplicate.json | Patient Known Non Duplicate | trial-use | 1 | pa | 2023-12 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-procedure-causedBy.json | Procedure Caused By | trial-use | 3 | pc | 2015-02 | uv | hl7 | Extension | |
| hl7.fhir.au.base | R4 | StructureDefinition-au-timezone-usage.json | Australian Time Zone Usage | trial-use | 1 | 2026-07 | au | hl7 | Extension | ||
| hl7.fhir.au.core | R4 | StructureDefinition-au-core-rsg-sexassignedab.json | AU Core Sex Assigned At Birth | trial-use | 2 | 2026-05 | au | hl7 | Extension | ||
| hl7.fhir.uv.tools | R5 | StructureDefinition-binding-definition.json | Binding Definition | informative | 4 | fhir | 2026-07 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-workflow-triggeredBy.json | Triggered by | trial-use | 2 | fhir | 2017-12 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-parameters-definition.json | Parameters Definition for parameter | trial-use | 2 | fhir | 2015-02 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-parameters-fullUrl.json | Parameters FullUrl for resource | trial-use | 3 | fhir | 2015-02 | uv | hl7 | Extension | |
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-ConditionEpisode.json | Extension UK Core Condition Episode | active | 2024-06 | us | hl7 | Extension | 1 | ||
| fhir.r4.nhsengland.stu1 | R4 | Extension-England-TypedDateTime.json | Extension England Typed Date Time | active | 2023-12 | us | hl7 | Extension | |||
| fhir.r4.nhsengland.stu1 | R4 | Extension-England-TypedPeriod.json | Extension England Typed Period | active | 2025-06 | us | hl7 | Extension | 1 | ||
| fhir.r4.ukcore.stu3.currentbuild | R4 | Extension-UKCore-BookingOrganization.json | Extension UK Core Booking Organization | active | 2023-12 | us | hl7 | Extension | 1 | ||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-valueset-sourceReference.json | ValueSet Source Reference | trial-use | 3 | vocab | 2020-12 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-codesystem-sourceReference.json | CodeSystem Source Reference | deprecated | 3 | vocab | 2020-12 | uv | hl7 | Extension | |
| hl7.fhir.fi.scheduling | R4 | StructureDefinition-ticket-number.json | Ticket Number | draft | 2025-08 | fi | hl7 | Extension | 1 | ||
| colonoscopyreport.no | R4 | WithdrawalTime.StructureDefinition.json | Colonoscopy Report Withdrawal Time | draft | 2021-03 | Extension | 1 | ||||
| hl7.fhir.uv.vhdir | R4 | StructureDefinition-contactpoint-availabletime.json | VhDir Contactpoint Availabletime | trial-use | 2 | pa | 2017-11 | uv | hl7 | Extension | 10 |
| ca.on.oh.mha-pds | R4 | StructureDefinition.ca-on-mha-ext-direct-minutes.json | DirectMinutes | active | 2022-08 | hl7 | Extension | 2 | |||
| ca.on.oh.mha-pds | R4 | StructureDefinition.ca-on-mha-ext-indirect-minutes.json | IndirectMinutes | active | 2022-08 | ca | hl7 | Extension | 2 | ||
| hl7.fhir.uv.subscriptions-backport | R4B | StructureDefinition-backport-timeout.json | Backport R5 Subscription Timeout | trial-use | fhir | 2024-06 | uv | hl7 | Extension | 7 | |
| nexuzhealth.fhir.r4 | R4 | NxhExtValidation.StructureDefinition.json | NxhExtValidation | draft | 2022-05 | Extension | 1 | ||||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-tz-offset.json | Timezone Offset | trial-use | 3 | fhir | 2013-12 | uv | hl7 | Extension | |
| hl7.fhir.uv.ebm | R6 | StructureDefinition-characteristic-timing.json | CharacteristicTiming | trial-use | 1 | cds | 2026-08 | uv | hl7 | Extension | 3 |
| de.netzwerk-universitaetsmedizin.ebm-cpg | R5 | StructureDefinition-relative-time.json | RelativeTime | draft | 2025-03 | uv | Extension | 3 | |||
| br.go.ses.imunizacao | R4 | StructureDefinition-tipo-notificante.json | Tipo Notificante | draft | 2025-12 | br | Extension | 1 | |||
| br.go.ses.core | R4 | StructureDefinition-tipo-informacao-endereco.json | TipoInformacaoEndereco | draft | 2025-11 | Extension | |||||
| br.go.ses.medicamentos | R4 | StructureDefinition-tipo-produto.json | Tipo Profissional | draft | 2026-03 | br | Extension | 1 | |||
| portuguese.use-cases.guide | R4B | RegisterTypePTExtension.StructureDefinition.json | Register Type PT Extension | draft | Extension | ||||||
| portuguese.core.guide | R4B | TransitionalRegistrationPTExtension.StructureDefinition.json | Transitional Registration PT Extension | active | 2024-01 | Extension | 1 | ||||
| dk.ehealth.sundhed.fhir.ig.core | R4 | StructureDefinition-ehealth-employee-title.json | Employee title | active | 2026-08 | dk | Extension | 3 | |||
| ca.on.health.idms | R5 | IDMS-EXTENSION-TITLE.json | Title | active | Extension | 3 | |||||
| ca.on.health.idms | R5 | IDMS-EXTENSION-REQUEST-TITLE.json | Request Title | active | Extension | ||||||
| rlfhir.lab | R4 | Extension_RL_Patient_TitoloDiStudio.json | RLPatientTitoloDiStudio | active | Extension | 1 | |||||
| ans.fhir.fr.tddui | R4 | StructureDefinition-tddui-event-label.json | TDDUI Event Label | active | 2026-07 | fr | national | Extension | 1 | ||
| portuguese.use-cases.guide | R4B | MarketingAuthorizationHolderPTExtension.StructureDefinition.json | Marketing Authorization Holder PT Extension | draft | 2024-05 | Extension | |||||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-observation-gatewayDevice.json | Observation Gateway Device | trial-use | 3 | oo | 2015-03 | uv | hl7 | Extension | |
| ca.on.oh-seris | R4 | SETPScheduleAdjustmentExt.json | Extension: Schedule Adjustment | draft | 2023-03 | Extension | |||||
| fhir.nhs.uk.stu3.assets | R3 | Extension-eRS-AttachedByOrganisation-1.json | Extension-eRS-AttachedByOrganisation-1 | draft | 2024-10 | us | hl7 | Extension | |||
| synapxe.hsar | R4B | extension-HealthPlan-patientDeceasedStatus.json | extension-CarePlan-patientDeceasedStatus | active | 2019-10 | Extension | |||||
| synapxe.hsar | R4B | extension-Composition-careReportExists.json | extension-Composition-careReportExists | active | 2019-10 | Extension | 1 | ||||
| synapxe.hsar | R4B | extension-HealthPlan-healthPlanExists.json | extension-CarePlan-healthPlanExists | active | 2019-10 | Extension | 1 | ||||
| nhsdigital.fhir.stu3 | R3 | Extension-eRS-PathwayServiceFor-Shortlist-1.json | Extension-eRS-PathwayServiceFor-Shortlist-1 | draft | 2019-01 | hl7 | Extension | 1 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-MedicationStatusReason-1.json | Extension-CareConnect-GPC-MedicationStatusReason-1 | active | 2018-03 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-MedicationStatusReason-1.json | Extension-CareConnect-MedicationStatusReason-1 | draft | 2018-11 | hl7 | Extension | 2 | |||
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-PrescriptionType-1.json | Extension-CareConnect-GPC-PrescriptionType-1 | active | 2018-03 | hl7 | Extension | 1 | |||
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-PrescriptionType-1.json | Extension-CareConnect-PrescriptionType-1 | draft | 2018-11 | hl7 | Extension | 2 | |||
| signal.core.r4 | R4 | StructureDefinition-extension-SignalServiceRequestPatient.json | SignalServiceRequestPatient | draft | us | hl7 | Extension | ||||
| nictiz.fhir.nl.stu3.iwlz | R3 | iwlz-ext-Toelichting.json | iwlz ext Toelichting | draft | nl | Extension | 1 | ||||
| eu.miabis.r4 | R4 | StructureDefinition-miabis-common-collaboration-topics-extension.json | Common Collaboration Topics Extension | active | 2026-06 | Extension | 1 | ||||
| hl7.eu.fhir.idea4rc | R4 | StructureDefinition-total-high-dose-delivered.json | Total High Dose Delivered | draft | 2026-08 | eu | hl7 | Extension | 1 | ||
| ihe.pharm.mpd | R5 | StructureDefinition-ihe-ext-medicationrequest-prescribedQuantity.json | MedicationRequest - Prescribed Quantity | active | 2026-06 | uv | ihe | Extension | 5 | ||
| fhir.ke.nccp | R4 | StructureDefinition-nccp-rt-total-fractions-extension.json | Radiotherapy Total Fractions Extension | draft | 2026-06 | us | hl7 | Extension | 3 | ||
| fhir.ke.nccp | R4 | StructureDefinition-nccp-sessions-required-extension.json | Sessions Required Extension | draft | 2026-06 | us | hl7 | Extension | 1 | ||
| eu.miabis.r4 | R4 | StructureDefinition-miabis-number-of-subjects-extension.json | Number Of Subjects | active | 2026-06 | Extension | 1 | ||||
| hl7-france-fhir.administrative-2022 | R4 | fr-organization-total-number-of-theorical-accomodation-space-R4.StructureDefinition.json | FrOrganizationTotalNumberOfTheoricalAccomodationSpace | active | 2019-07 | Extension | 1 | ||||
| de.gematik.epa.medication | R4 | StructureDefinition-medication-total-quantity-formulation-extension.json | MedicationTotalQuantityFormulationExtension | active | 2025-12 | de | Extension | 3 | |||
| ca.on.oh-dhdr | R4 | DispenseRemainingQuantity.json | DispenseRemainingQuantity | active | 2022-01 | us | hl7 | Extension | 4 | ||
| fhir.ca-bc.provider | R4 | StructureDefinition-bc-end-reason-extension.json | BC End Reason Extension | active | 2025-02 | us | hl7 | Extension | 25 | ||
| hl7.fhir.us.mdi | R4 | StructureDefinition-Extension-tracking-number.json | Tracking Number | trial-use | 3 | pher | 2025-07 | us | hl7 | Extension | 3 |
| fhir.ca-bc.provider | R4 | StructureDefinition-bc-owner-extension.json | BC Owner Extension | active | 2025-02 | us | hl7 | Extension | 25 | ||
| fhir.ca-bc.provider | R4 | StructureDefinition-bc-license-status-extension.json | BC License Status Extension | active | 2025-02 | us | hl7 | Extension | 2 | ||
| fhir.iptpig | R4 | StructureDefinition-iptp-confirmation-status.json | IPTp Dose Confirmation Status | draft | 2026-06 | us | hl7 | Extension | 1 | ||
| hl7.fhir.uv.cpg | R4 | StructureDefinition-cpg-enrolledIn.json | CPG Enrolled In Extension | active | cds | 2026-06 | uv | hl7 | Extension | 1 | |
| eng.fhir.profile.dev | R4 | extension-resource-enrolledIn.json | extension-resource-enrolledIn | draft | 2023-06 | hl7 | Extension | ||||
| fhir.kenyaClaimsIG | R4 | StructureDefinition-eclaim-state-extension.json | Claim Workflow State | draft | 2026-06 | us | hl7 | Extension | 1 | ||
| hl7.fhir.uv.tools | R5 | StructureDefinition-snapshot-source.json | Extension Snapshot Source | informative | 2 | fhir | 2026-07 | uv | hl7 | Extension | |
| fhir.ke.nccp | R4 | StructureDefinition-nccp-cycle-number-extension.json | Cycle Number Extension | draft | 2026-06 | us | hl7 | Extension | 5 | ||
| hl7.fhir.us.breastcancer | R3 | StructureDefinition-cimi-entity-SpecimenTreatment-extension.json | BC SpecimenTreatment Extension | draft | 2018-08 | us | hl7 | Extension | 2 | ||
| hl7.fhir.us.lower-extremity-skin-wound-assessment | R4 | StructureDefinition-TrendExt.json | Trend | draft | 2019-06 | us | hl7 | Extension | 1 | ||
| hl7.org.nz.fhir.ig.formulary | R4B | StructureDefinition-nzf-prescribe-by-brand.json | PrescribeByBrand | draft | 2026-06 | nz | hl7 | Extension | 1 | ||
| dk.ehealth.sundhed.fhir.ig.core | R4 | StructureDefinition-ehealth-device-privatelyOwned.json | Privately owned | active | 2026-08 | dk | Extension | 1 | |||
| hl7.org.nz.fhir.ig.formulary | R4B | StructureDefinition-nzf-unapproved.json | Unapproved | draft | 2026-06 | nz | hl7 | Extension | 1 | ||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-auditevent-Anonymized.json | AuditEvent Anonymized | trial-use | 3 | sec | 2020-12 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-auditevent-Encrypted.json | AuditEvent Encrypted | trial-use | 3 | sec | 2020-12 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-documentreference-thumbnail.json | DocumentReference Thumbnail | trial-use | 2 | oo | 2022-03 | uv | hl7 | Extension | |
| hl7.fhir.us.directory-query | R4 | StructureDefinition-trustFramework.json | Trust Framework | active | 2022-12 | us | hl7 | Extension | 1 | ||
| hl7.fhir.us.davinci-pdex | R4 | StructureDefinition-base-ext-trustFramework.json | NDH Trust Framework | trial-use | 2 | fm | 2026-08 | us | hl7 | Extension | 1 |
| hl7.fhir.pl.base.r5 | R5 | StructureDefinition-address-isoalpha3countrycode.json | Address: ISO Alpha-3 Country Code | active | 2026-06 | pl | hl7 | Extension | 1 | ||
| ee.fhir.ahd | R5 | StructureDefinition-ahd-witness-reference.json | Tunnistaja | draft | 2026-07 | Extension | 1 | ||||
| hl7.fhir.pl.ssidl | R5 | StructureDefinition-specimenDefinition-handlingCode.json | Typ czynnika przedanalitycznego (SSIDL) | active | 2026-07 | pl | hl7 | Extension | 2 | ||
| hl7.fhir.fr.core | R4 | StructureDefinition-fr-core-organization-type-activite.json | FR Core Organization Extension - Type d'activité | active | 2026-08 | fr | hl7 | Extension | 1 | ||
| hl7.fhir.fr.core | R4 | StructureDefinition-fr-core-location-type-chambre.json | FR Core Location Extension - Type de chambre | active | 2026-08 | fr | hl7 | Extension | 1 | ||
| hl7.fhir.uv.v2mappings | R4 | StructureDefinition-TypeInfo.json | TypeInfo | trial-use | 1 | oo | 2025-10 | uv | hl7 | Extension | |
| hl7.fhir.us.directory-query | R4 | StructureDefinition-endpointType.json | Endpoint Type | active | 2022-12 | us | hl7 | Extension | 1 | ||
| hl7.fhir.uv.vhdir | R4 | StructureDefinition-org-alias-type.json | VhDir Org Alias Type | trial-use | 2 | pa | 2017-08 | uv | hl7 | Extension | 1 |
| fhir.kenyaClaimsIG | R4 | StructureDefinition-eclaims-anaesthesia-type.json | Anaesthesia Type | draft | 2026-06 | us | hl7 | Extension | 1 | ||
| fhir.ke.nccp | R4 | StructureDefinition-nccp-rt-beam-type-extension.json | Radiotherapy Beam Type Extension | draft | 2026-06 | us | hl7 | Extension | 1 | ||
| fhir.ke.nccp | R4 | StructureDefinition-nccp-bmt-type-extension.json | BMT Type Extension | draft | 2026-06 | us | hl7 | Extension | 1 | ||
| dk.ehealth.sundhed.fhir.ig.core | R4 | StructureDefinition-ehealth-organization-telecomSystem.json | Telecom System | active | 2026-08 | dk | Extension | 1 | |||
| no.nhn.fhir.helsenorge.profiles | R4 | StructureDefinition-hn-basis-consultationType.json | hn-basis-consultationType | draft | 2025-12 | no | Extension | 2 | |||
| lt.hl7.fhir.eu | R5 | StructureDefinition-specimen-container-type.json | Extension: Specimen Container Type | draft | 2015-02 | Extension | |||||
| uz.dhp.integrations | R5 | StructureDefinition-care-for-diagnosis-use.json | Diagnosis Use Type | draft | 2026-08 | Extension | 1 | ||||
| nexuzhealth.fhir.r4 | R4 | NxhExtMedicationType.StructureDefinition.json | NxhExtMedicationType | active | 2023-11 | Extension | 3 | ||||
| sfm.130323 | R4 | sfm-prescriptiontype.StructureDefinition.json | sfm-prescriptiontype | active | 2021-05 | Extension | |||||
| ca.on.ppr.r4 | R4 | practitionerRole-classification.json | PPR PractitionerRole Classification Extension | draft | 2019-03 | ca | hl7 | Extension | 1 | ||
| ca.on.phsd.r4-alpha | R4 | practitionerRole-classification.json | PractitionerRole Classification Extension | draft | 2019-03 | Extension | 2 | ||||
| fhir.iptpig | R4 | StructureDefinition-iptp-reminder-anchor.json | IPTp Reminder Anchor | draft | 2026-06 | us | hl7 | Extension | 1 | ||
| de.nfdi4health.mds | R4 | StructureDefinition-nfdi4health-ex-mds-related-artifact-nfdi-scheme.json | NFDI4Health EX MDS Related Artifact Scheme | draft | Extension | ||||||
| nexuzhealth.fhir.r4 | R4 | NxhExtPhoneType.StructureDefinition.json | NxhExtPhoneType | active | 2022-11 | Extension | 1 | ||||
| ca.on.health.idms | R5 | Extension-Ministry-Recommendation.json | Ministry Recommendation | active | Extension | ||||||
| kanta.sosiaalihuolto.r4 | R4 | TypeOfDisclosure.json | Social Welfare Type Of Disclosure extension | active | 2025-03 | Extension | 1 | ||||
| eu.miabis.r4 | R4 | StructureDefinition-miabis-collection-dataset-type-extension.json | Collection Dataset Type Extension | active | 2026-06 | Extension | 1 | ||||
| hl7.fhir.be.drp | R4 | StructureDefinition-be-ext-performer-type.json | BePerformerType | active | 2025-10 | be | hl7 | Extension | 1 | ||
| hl7.fhir.pl.laboratory.r5 | R5 | StructureDefinition-observationDefinition-componentTitle.json | ObservationDefinition: Component title (PL) | draft | 2025-07 | pl | hl7 | Extension | 2 | ||
| ee.fhir.ahd | R5 | StructureDefinition-ahd-allowed-to-sign.json | Luba PET teha | draft | 2026-07 | Extension | |||||
| io.health-samurai.core.r4b | R4B | StructureDefinition-client-hl7B2b.json | Hl7 B2b | active | uv | Extension | |||||
| hl7.fhir.fi.scheduling | R4 | StructureDefinition-additional-information-url.json | Additional Information URL | draft | 2025-08 | fi | hl7 | Extension | 1 | ||
| hl7.fhir.fi.scheduling | R4 | StructureDefinition-patient-instruction-url.json | Patient Instruction URL | draft | 2025-08 | fi | hl7 | Extension | 1 | ||
| silth.fhir.th.extensions | R5 | StructureDefinition-ex-medication-image-url.json | Medication: Image URL | active | 2023-10 | Extension | 1 | ||||
| hl7.fhir.us.core | R4 | StructureDefinition-us-core-individual-sex.json | US Core Individual Sex Extension | trial-use | 5 | cgp | 2025-04 | us | hl7 | Extension | 2 |
| rlfhir.lab | R4 | Extension_RL_ServiceRequest_UlterioriDettagli.json | RLServiceRequestUlterioriDettagli | active | Extension | 4 | |||||
| de.medizininformatikinitiative.kerndatensatz.biobank | R4 | StructureDefinition-mii-ex-biobank-temperaturbedingungen.json | MII EX Biobank Temperaturbedingungen | active | de | Extension | 1 | ||||
| de.gkvsv.erezeptabrechnungsdaten | R4 | GKVSV_EX_ERP_VAT_VALUE.json | GKVSV_EX_ERP_VAT_VALUE | active | 2024-05 | Extension | 1 | ||||
| hl7.fhir.us.davinci-ra | R4 | StructureDefinition-ra-payerCodingGapReportId.json | Payer Coding Gap Report Id Extension | trial-use | 1 | cqi | 2026-04 | us | hl7 | Extension | 1 |
| fhir.ke.nccp | R4 | StructureDefinition-nccp-recist-target-lesion-id-extension.json | RECIST Target Lesion ID Extension | draft | 2026-06 | us | hl7 | Extension | 1 | ||
| fhir.ke.nccp | R4 | StructureDefinition-nccp-session-id-extension.json | Session ID Extension | draft | 2026-06 | us | hl7 | Extension | 2 | ||
| hl7.fhir.us.davinci-pas | R4 | StructureDefinition-extension-itemTraceNumber.json | Item Trace Number | trial-use | 4 | fm | 2026-06 | us | hl7 | Extension | 3 |
| ihe.pharm.mpd | R5 | StructureDefinition-ihe-ext-medication-unitofpresentation.json | Medication - Unit of presentation | active | 2026-06 | uv | ihe | Extension | 4 | ||
| hl7.fhir.us.vr-common-library | R4 | StructureDefinition-UnitOrAptNumber.json | UnitOrAptNumber Vital Records | active | pher | 2026-06 | us | hl7 | Extension | 4 | |
| fhir.kenyaPSIG | R4 | StructureDefinition-specimen-priority.json | Specimen Priority | draft | 2026-06 | us | hl7 | Extension | 1 | ||
| dk.ehealth.sundhed.fhir.ig.core | R4 | StructureDefinition-ehealth-media-usage-mode.json | Usage mode | active | 2026-08 | dk | Extension | 1 | |||
| hl7.fhir.uv.genomics-reporting.r4 | R4 | StructureDefinition-workflow-relatedArtifactComponent.json | Related Artifact for Observation component | active | cg | 2024-12 | uv | hl7 | Extension | ||
| hl7.fhir.uv.sdc | R4 | StructureDefinition-sdc-questionnaire-preferredTerminologyServer.json | Preferred Terminology Server | deprecated | 4 | fhir | 2026-07 | uv | hl7 | Extension | 1 |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-elementdefinition-namespace.json | Namespace | deprecated | 1 | fhir | 2015-02 | uv | hl7 | Extension | |
| hl7.fhir.uv.tools | R5 | StructureDefinition-xml-namespace.json | Namespace | informative | 4 | fhir | 2015-02 | uv | hl7 | Extension | |
| hl7.fhir.uv.genomics-reporting | R4 | StructureDefinition-repeat-motif-order.json | Repeat Motif Order | trial-use | 2 | cg | 2026-01 | uv | hl7 | Extension | 1 |
| hl7.fhir.uv.tools | R5 | StructureDefinition-ig-example-actor.json | Actor For Example | informative | 3 | fhir | 2026-07 | uv | hl7 | Extension | |
| ca.on.ppr.r4 | R4 | ca-on-ext-phsd-contact-purpose.json | ContactPurpose | draft | Extension | 4 | |||||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-DiagnosticReport-geneticsAssessedCondition.json | Assessed Condition | deprecated | 1 | oo | 2015-10 | uv | hl7 | Extension | |
| nexuzhealth.fhir.r4 | R4 | NxhExtDiseaseCourse.StructureDefinition.json | NxhExtDiseaseCourse | active | Extension | 1 | |||||
| nexuzhealth.fhir.r4 | R4 | NxhExtMorphology.StructureDefinition.json | NxhExtMorphology | active | Extension | 1 | |||||
| nexuzhealth.fhir.r4 | R4 | NxhExtDsmGafScore.StructureDefinition.json | NxhExtDsmGafScore | active | Extension | 2 | |||||
| nexuzhealth.fhir.r4 | R4 | NxhExtDsmAs.StructureDefinition.json | NxhExtDsmAs | active | Extension | 1 | |||||
| nexuzhealth.fhir.r4 | R4 | NxhExtDsmRang.StructureDefinition.json | NxhExtDsmRang | active | Extension | 2 | |||||
| nexuzhealth.fhir.r4 | R4 | NxhExtConditionEvidenceType.StructureDefinition.json | NxhExtConditionEvidenceType | active | Extension | 1 | |||||
| nexuzhealth.fhir.r4 | R4 | NxhExtDsmIsHoofddiagnose.StructureDefinition.json | NxhExtDsmIsHoofddiagnose | active | Extension | 1 | |||||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-textLink.json | Text Link | trial-use | 3 | fhir | 2013-12 | uv | hl7 | Extension | |
| ca.on.oh.erec | R4 | ext-override-reason-TO-BE-REMOVED.json | OverrideReason | draft | ca | national | Extension | ||||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-uncertainPeriod.json | Uncertain period | draft | 1 | fhir | 2014-04 | uv | hl7 | Extension | |
| hl7.fhir.uv.genomics-reporting | R4 | StructureDefinition-knowledgebase-ancestry-group.json | Knowledgebase Ancestry Group | trial-use | 2 | cg | 2026-01 | uv | hl7 | Extension | 1 |
| pharmacyeclaim.trial | R4 | profile-ext-quantity-is-unlimited.StructureDefinition.json | QuantityIsUnlimited | draft | Extension | ||||||
| hl7.fhir.us.spl | R5 | StructureDefinition-itemMarketingStatusDates.json | Manufactured Item Marketing Status Date Range | trial-use | 1 | brr | 2025-07 | us | hl7 | Extension | 1 |
| hl7.fhir.us.vrdr | R4 | StructureDefinition-practitioner-role.json | Practitioner Role | active | pher | 2024-10 | us | hl7 | Extension | 2 | |
| fhir.org.nz.ig.base | R4 | StructureDefinition-alias-type.json | AliasType | active | 2026-05 | us | hl7 | Extension | 2 | ||
| hl7.fhir.us.bfdr | R4 | StructureDefinition-Extension-role.json | Extension Parental Role | draft | pher | 2025-08 | us | hl7 | Extension | 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 | us | hl7 | Extension | 1 | |
| dk.ehealth.sundhed.fhir.ig.core | R4 | StructureDefinition-ehealth-include-as-extra.json | includeAsExtra | active | 2026-08 | dk | Extension | 2 | |||
| hl7.fhir.us.davinci-pas | R4 | StructureDefinition-extension-productOrServiceCodeEnd.json | Product or Service Code End | trial-use | 4 | fm | 2026-06 | us | hl7 | Extension | 4 |
| hl7.fhir.uv.genomics-reporting | R4 | StructureDefinition-genomic-study-reference.json | Genomic Study Reference | trial-use | 2 | cg | 2026-01 | uv | hl7 | Extension | 1 |
| hl7.fhir.uv.genomics-reporting | R4 | StructureDefinition-medication-assessed-reference.json | Medication Assessed reference to a FHIR resource | trial-use | 2 | cg | 2026-01 | uv | hl7 | Extension | 1 |
| hl7.fhir.uv.genomics-reporting | R4 | StructureDefinition-therapy-assessed-reference.json | Therapy Assessed reference to a FHIR resource | trial-use | 2 | cg | 2026-01 | uv | hl7 | Extension | 1 |
| hl7.fhir.uv.genomics-reporting | R4 | StructureDefinition-genomic-study-referrer-ext.json | Genomic Study Referrer Extension | trial-use | 2 | cg | 2026-01 | uv | hl7 | Extension | 1 |
| nhsdigital.fhir.stu3 | R3 | Extension-CareConnect-GPC-MedicationOrderStatement-1.json | Extension-CareConnect-GPC-MedicationOrderStatement-1 | draft | 2017-10 | hl7 | Extension | ||||
| hl7.fhir.uv.genomics-reporting | R4 | StructureDefinition-genomic-study-analysis-ext.json | Genomic Study Analysis Extension | trial-use | 2 | cg | 2026-01 | uv | hl7 | Extension | 2 |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-datatype.json | Datatype | trial-use | 2 | fhir | 2014-04 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-alternate-reference.json | Alternate Reference | trial-use | 2 | fhir | 2014-04 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-alternate-canonical.json | Alternate Canonical | trial-use | 2 | fhir | 2014-04 | uv | hl7 | Extension | |
| johnmoehrke.relatedpersonconsent.example | R4 | StructureDefinition-JFM-authorizingConsent.json | Extension that points at an authorizing Consent | draft | 2026-07 | uv | Extension | 1 | |||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-codesystem-author.json | Code System Author | deprecated | 1 | vocab | 2019-10 | uv | hl7 | Extension | |
| hl7.fhir.uv.extensions | R5 | StructureDefinition-valueset-compose-createdBy.json | ValueSet Compose CreatedBy | trial-use | 2 | vocab | 2020-12 | uv | hl7 | Extension | |
| smart.who.int.immunizations | R4 | StructureDefinition-IMMZLiveVaccine.json | Immunization Live Vaccine | draft | 2026-07 | who | Extension | 1 | |||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-iso21090-AD-use.json | AD Use | trial-use | 3 | fhir | 2012-06 | uv | hl7 | Extension | |
| hl7.fhir.be.infsec | R4 | StructureDefinition-be-ext-intended-profile.json | Intended profile | active | 2026-06 | be | hl7 | Extension | |||
| elga.moped | R5 | StructureDefinition-moped-ext-verpflegskostenBeitragsbefreiung.json | VerpflegskostenBeitragsbefreiung | draft | 2026-05 | Extension | 1 | ||||
| hl7.fhir.fi.base | R4 | StructureDefinition-vaccination-recorder.json | Vaccination Recorder | active | 2025-10 | fi | hl7 | Extension | 1 | ||
| ans.fhir.fr.tddui | R4 | StructureDefinition-tddui-patient-validation.json | TDDUI Patient Validation | active | 2026-07 | fr | national | Extension | 1 | ||
| br.go.ses.medicamentos | R4 | StructureDefinition-valor-unitario-produto.json | Valor Unitário do Produto | draft | 2026-03 | br | Extension | 2 | |||
| br.go.ses.seguranca | R4 | StructureDefinition-hash-sha256.json | Hash Sha256 | draft | 2026-01 | br | Extension | 1 | |||
| hl7.fhir.us.cardio.ig | R4 | StructureDefinition-ValveInsuficiencyExt.json | Valor de la insuficiencia de válvula | draft | 2024-04 | us | hl7 | Extension | 1 | ||
| hl7.fhir.us.cardio.ig | R4 | StructureDefinition-ExplantTypeExt.json | Valores que acepta el tipo de explante. | draft | 2024-04 | us | hl7 | Extension | 1 | ||
| hl7.fhir.us.cardio.ig | R4 | StructureDefinition-ImplantTypeExt.json | Valores que acepta el tipo de implante. | draft | 2024-04 | us | hl7 | Extension | 1 | ||
| hl7.fhir.uv.extensions | R5 | StructureDefinition-patient-disability.json | Patient Disability | deprecated | 3 | pa | 2020-12 | uv | hl7 | Extension | |
| careconnect.stu3.03.00.00 | R3 | Extension-CareConnect-FailsafeRuleVersion-1.json | Extension-CareConnect-FailsafeRuleVersion-1 | draft | 2020-04 | hl7 | Extension | 1 |
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