| # | | Name | Source | Ver | Description |
| 1 | | adheres to | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | The action represented by this resource has been determined to satisfy the expectations established by the referenced Definition resource. |
| 2 | | Episode of care | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | Identifies the episode(s) of care that this resource is relevant to. Establishes the EpisodeOfCare as a 'grouper' of resources that are relevant to that episode. |
| 3 | | Event history | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | Links to *Provenance* records for past versions of this resource that document key state transitions or updates that are deemed "relevant" or important to a user looking at the current version of the resource. E.g, when an observation was verified or corrected. This extension does not point to the Provenance associated with the current version of the resource - as it would be created after this version existed. The *Provenance* for the current version can be retrieved with a [` _revinclude`](search.html#revinclude). |
| 4 | | Event Location | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | The principal physical location where the event was performed. |
| 5 | | IHEDeliveryStage | ihe.pharm.supply#current | R5 | Stage of delivery reported in a SupplyDelivery. |
| 6 | | Research study | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | Indicates that this event is relevant to the specified research study(ies). |
| 7 | | Shall comply with | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | In satisfying this request or instantiating this definition, the expectations defined in the Definition resource are expected to be met. (This allows requirements defined elsewhere to be brought into play by reference rather than providing all of the detail in-line necessary to satisfy the referenced Definition.). |
| 8 | | Status reason | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | Captures the reason for the current state of the resource. |
| 9 | | Triggered by | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | This resource came into being as a result of expectations set in the referenced Definition resource. I.e. This resource represents a 'step' dictated within the protocol/order set/etc. |