NHS North West Genomics
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: Message Definition - Referral Order (O19)

Draft as of 2026-11-03

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<MessageDefinition xmlns="http://hl7.org/fhir">
  <id value="referral-order"/>
  <language value="en"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: MessageDefinition referral-order</b></p><a name="referral-order"> </a><a name="hcreferral-order"> </a><p><b>url</b>: <a href="MessageDefinition-referral-order.html">MessageDefinition Referral Order (O19)</a></p><p><b>version</b>: 2.2.5</p><p><b>name</b>: ReferralOrder</p><p><b>title</b>: Referral Order (O19)</p><p><b>status</b>: Draft</p><p><b>experimental</b>: true</p><p><b>date</b>: 2026-11-03</p><p><b>publisher</b>: NHS North West Genomics</p><p><b>contact</b>: <a href="https://www.nwgenomics.nhs.uk/contact-us">https://www.nwgenomics.nhs.uk/contact-us</a></p><p><b>description</b>: </p><div><p><strong>For future use.</strong> FHIR Message equivalent of the IHE 360X HL7 v2.5.1 <code>OMG^O19^OMG_O19</code>
referral order (ORC-1 <code>NW</code>), used for a <a href="StructureDefinition-GeneticClinicalReferral.html">Genetic Clinical
Referral</a> - <code>ServiceRequest.code</code>
SNOMED CT <code>306119003</code>. The Referral Recipient replies with a <a href="MessageDefinition-referral-order-status.html">Referral Order Status
(O51)</a> message (accept or decline). A
laboratory order sent as <code>OMG^O19</code> uses the <a href="MessageDefinition-laboratory-order.html">Laboratory
Order</a> FHIR Message instead.</p>
</div><p><b>jurisdiction</b>: <span title="Codes:{urn:iso:std:iso:3166 GB}">United Kingdom of Great Britain and Northern Ireland</span></p><p><b>event</b>: <a href="http://terminology.hl7.org/7.5.0/CodeSystem-v2-0003.html#v2-0003-O19">event: O19</a> (OMG - General clinical order)</p><p><b>category</b>: Consequence</p><h3>Focus</h3><table class="grid"><tr><td style="display: none">-</td><td><b>Code</b></td><td><b>Profile</b></td><td><b>Min</b></td><td><b>Max</b></td></tr><tr><td style="display: none">*</td><td>ServiceRequest</td><td><a href="http://hl7.org/fhir/R4/servicerequest.html">ServiceRequest</a></td><td>1</td><td>1</td></tr></table><p><b>responseRequired</b>: Always</p><blockquote><p><b>allowedResponse</b></p><p><b>message</b>: <a href="MessageDefinition-referral-order-status.html">Referral Order Status (O51)</a></p><p><b>situation</b>: </p><div><p>Accept (ORC-1 OK, ORC-5 IP) or decline (ORC-1 UA, ORC-5 CA) [PCC-55].</p>
</div></blockquote><blockquote><p><b>allowedResponse</b></p><p><b>message</b>: <a href="MessageDefinition-acknowledgement.html">Message Definition - Acknowledgement</a></p></blockquote></div>
  </text>
  <url
       value="https://fhir.nwgenomics.nhs.uk/MessageDefinition/referral-order"/>
  <version value="2.2.5"/>
  <name value="ReferralOrder"/>
  <title value="Referral Order (O19)"/>
  <status value="draft"/>
  <experimental value="true"/>
  <date value="2026-11-03"/>
  <publisher value="NHS North West Genomics"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="https://www.nwgenomics.nhs.uk/contact-us"/>
    </telecom>
  </contact>
  <description
               value="**For future use.** FHIR Message equivalent of the IHE 360X HL7 v2.5.1 `OMG^O19^OMG_O19`
referral order (ORC-1 `NW`), used for a [Genetic Clinical
Referral](StructureDefinition-GeneticClinicalReferral.html) - `ServiceRequest.code`
SNOMED CT `306119003`. The Referral Recipient replies with a [Referral Order Status
(O51)](MessageDefinition-referral-order-status.html) message (accept or decline). A
laboratory order sent as `OMG^O19` uses the [Laboratory
Order](MessageDefinition-laboratory-order.html) FHIR Message instead."/>
  <jurisdiction>
    <coding>
      <system value="urn:iso:std:iso:3166"/>
      <code value="GB"/>
      <display value="United Kingdom of Great Britain and Northern Ireland"/>
    </coding>
  </jurisdiction>
  <eventCoding>
    <system value="http://terminology.hl7.org/CodeSystem/v2-0003"/>
    <code value="O19"/>
  </eventCoding>
  <category value="consequence"/>
  <focus>
    <code value="ServiceRequest"/>
    <profile value="http://hl7.org/fhir/StructureDefinition/ServiceRequest"/>
    <min value="1"/>
    <max value="1"/>
  </focus>
  <responseRequired value="always"/>
  <allowedResponse>
    <message
             value="https://fhir.nwgenomics.nhs.uk/MessageDefinition/referral-order-status"/>
    <situation
               value="Accept (ORC-1 OK, ORC-5 IP) or decline (ORC-1 UA, ORC-5 CA) [PCC-55]."/>
  </allowedResponse>
  <allowedResponse>
    <message
             value="https://fhir.nwgenomics.nhs.uk/MessageDefinition/acknowledgement"/>
  </allowedResponse>
</MessageDefinition>