Generated Narrative: MessageDefinition laboratory-order
url: MessageDefinition Laboratory Order (O21)
version: 0.1.0
name: LaboratoryOrder
title: Laboratory Order (O21)
status: Draft
experimental: true
date: 2026-11-04
publisher: Kevin Mayfield
contact: https://github.com/KevinMayfield/PathologyAndLaboratory
description:
FHIR Message equivalent of the HL7 v2.5.1 OML^O21^OML_O21 message, sent by the Order
Placer (EPR, GP system, order comms) to the Order Filler (LIMS) for
Placer Order Management [LAB-1], by the Order Filler to the Order Placer
for Filler Order Management [LAB-2], and by a Requester (referring
laboratory) to a Subcontractor (reference laboratory) for
Sub-order Management [LAB-35].
Each ORC/OBR pair becomes a Laboratory Order, PID a Patient and SPM a Specimen. See Mapping HL7 v2 and FHIR.
The HL7 v2 acknowledgement ORL^O22 (or ACK^O21) is a FHIR response message
(MessageHeader.response).
jurisdiction: United Kingdom of Great Britain and Northern Ireland
event: event: O21 (OML - Laboratory order)
category: Consequence
| Code | Profile | Min | Max |
| ServiceRequest | Laboratory Order | 1 | * |
responseRequired: Always