Enterprise Imaging (Proof of Concept)
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Enterprise Imaging (Proof of Concept) - Local Development build (v0.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

MessageDefinition: Message Definition - Procedure Scheduled (O23) (Experimental)

Official URL: https://fhir.nwgenomics.nhs.uk/Imaging/MessageDefinition/procedure-scheduled Version: 0.1.0
Draft as of 2026-11-01 Computable Name: ProcedureScheduled

FHIR Message equivalent of the IHE SWF.b HL7 v2.5.1 OMI^O23^OMI_O23 message, sent by the Order Filler (RIS) to the Image Manager / Image Archive (PACS) for Procedure Scheduled [RAD-4] and Procedure Update [RAD-13].

Each ORC-TQ1-OBR-IPC group (one per Requested Procedure) becomes a Radiology Service Request and a Radiology Imaging Study with status registered - the study before any images are acquired:

IPC field FHIR
IPC-1 Accession Identifier ServiceRequest.identifier:accessionNumber, ImagingStudy.basedOn.identifier
IPC-2 Requested Procedure ID ServiceRequest.identifier
IPC-3 Study Instance UID ImagingStudy.identifier:studyInstanceUid
IPC-4 Scheduled Procedure Step ID -
IPC-5 Modality ImagingStudy.modality

For RAD-13 the message carries the updated ServiceRequest and ImagingStudy; a cancellation sets ServiceRequest.status revoked and ImagingStudy.status cancelled. The ORC-1 codes used by RAD-13 are To confirm against IHE RAD TF-2 section 4.13.

The HL7 v2 acknowledgement ORI^O24^ORI_O24 is a FHIR response message (MessageHeader.response).

url: MessageDefinition Procedure Scheduled (O23)

version: 0.1.0

name: ProcedureScheduled

title: Procedure Scheduled (O23)

status: Draft

experimental: true

date: 2026-11-01

publisher: NHS North West Genomics

contact: https://www.nwgenomics.nhs.uk/contact-us

description:

FHIR Message equivalent of the IHE SWF.b HL7 v2.5.1 OMI^O23^OMI_O23 message, sent by the Order Filler (RIS) to the Image Manager / Image Archive (PACS) for Procedure Scheduled [RAD-4] and Procedure Update [RAD-13].

Each ORC-TQ1-OBR-IPC group (one per Requested Procedure) becomes a Radiology Service Request and a Radiology Imaging Study with status registered - the study before any images are acquired:

IPC field FHIR
IPC-1 Accession Identifier ServiceRequest.identifier:accessionNumber, ImagingStudy.basedOn.identifier
IPC-2 Requested Procedure ID ServiceRequest.identifier
IPC-3 Study Instance UID ImagingStudy.identifier:studyInstanceUid
IPC-4 Scheduled Procedure Step ID -
IPC-5 Modality ImagingStudy.modality

For RAD-13 the message carries the updated ServiceRequest and ImagingStudy; a cancellation sets ServiceRequest.status revoked and ImagingStudy.status cancelled. The ORC-1 codes used by RAD-13 are To confirm against IHE RAD TF-2 section 4.13.

The HL7 v2 acknowledgement ORI^O24^ORI_O24 is a FHIR response message (MessageHeader.response).

jurisdiction: United Kingdom of Great Britain and Northern Ireland

event: event: O23 (OMI - Imaging order)

category: Consequence

focus

code: ServiceRequest

profile: Radiology Service Request

min: 1

max: *

focus

code: ImagingStudy

profile: Radiology Imaging Study

min: 1

max: *

responseRequired: Always