Enterprise Imaging (Proof of Concept)
0.1.0 - proof-of-concept
Enterprise Imaging (Proof of Concept)
0.1.0 - proof-of-concept
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
Placer Order Management [RAD-2] (IHE RAD Scheduled Workflow.b) - the Order Placer (EPR or order communications) places, changes or cancels an imaging order with the Department System Scheduler / Order Filler (RIS).
This guide uses HL7 v2.5.1, as SWF.b requires and as the NW GMSA IG uses.
| Message | Trigger | Use |
|---|---|---|
OMG^O19^OMG_O19 (ORC-1 NW) |
New order | Order Placer places a new order |
OMG^O19^OMG_O19 (ORC-1 XO) |
Change order | Order Placer changes an order (v2.5.1 only) |
OMG^O19^OMG_O19 (ORC-1 CA) |
Cancel order | Order Placer cancels an order |
ORG^O20^ORG_O20 |
Acknowledgement | Order Filler accepts or rejects the order |
Parent / child orders (ORC-1 PA / CH) are optional in IHE and not covered here.
sequenceDiagram
participant OP as Order Placer<br/>EPR / Order Comms
participant OF as Order Filler<br/>RIS
OP ->> OF: OMG^O19 / FHIR Message (O19, focus ServiceRequest)
OF -->> OP: ORG^O20 / FHIR response message
The FHIR equivalent of OMG^O19 is the Imaging Order (O19)
message: a Bundle Message whose
MessageHeader has eventCoding v2-0003 O19
and whose focus is the Radiology Service Request.
The same message is used for RAD-2 and RAD-3, following the
Patient Care Coordination
proof of concept, where a referral (REF_I12 or OMG^O19) becomes one O19 FHIR
Message whatever the HL7 v2 source. ORG^O20 is a FHIR response message
(MessageHeader.response).
Example: Bundle Message - Imaging Order (O19), new order.
Indicative mapping to Radiology Service Request, following the HL7 v2-to-FHIR ORC and OBR maps.
| HL7 v2.5.1 | FHIR | Note |
|---|---|---|
| MSH-4 / MSH-6 | MessageHeader.sender / destination.receiver (ODS code) |
Sending / receiving facility |
| MSH-9 | MessageHeader.eventCoding v2-0003 O19 |
OMG^O19^OMG_O19 |
| PID-3 | ServiceRequest.subject (Patient) |
NHS number and MRN |
| PV1-19 | ServiceRequest.encounter |
Visit number |
| ORC-1 | ServiceRequest.status / intent |
NW new, XO change, CA cancel |
| ORC-2 | ServiceRequest.identifier (type PLAC) |
Placer order number |
| ORC-12 | ServiceRequest.requester |
Ordering clinician |
| OBR-4 | ServiceRequest.code |
NICIP code (required), with SNOMED CT map - see Terminology |
| OBR-13 | ServiceRequest.supportingInfo |
Relevant clinical information |
| OBR-31 | ServiceRequest.reasonCode |
Reason for study |
| TQ1-9 | ServiceRequest.priority |
Priority |
Example: Radiology Service Request - new order. The accession number is not known to the Order Placer at this point - it is assigned by the RIS (see Filler Order Management [RAD-3] and Procedure Scheduled [RAD-4]).