<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="message-significance-category"/><meta><lastUpdated value="2026-04-01T11:29:14.669+00:00"/></meta><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem message-significance-category</b></p><a name="message-significance-category"> </a><a name="hcmessage-significance-category"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/message-significance-category</code> defines the following codes:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style="white-space:nowrap">consequence<a name="message-significance-category-consequence"> </a></td><td>Consequence</td><td>The message represents/requests a change that should not be processed more than once; e.g., making a booking for an appointment.</td></tr><tr><td style="white-space:nowrap">currency<a name="message-significance-category-currency"> </a></td><td>Currency</td><td>The message represents a response to query for current information. Retrospective processing is wrong and/or wasteful.</td></tr><tr><td style="white-space:nowrap">notification<a name="message-significance-category-notification"> </a></td><td>Notification</td><td>The content is not necessarily intended to be current, and it can be reprocessed, though there may be version issues created by processing old notifications.</td></tr></table></div></text><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"><valueCode value="inm"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"><valueCode value="normative"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"><valueInteger value="1"/></extension><url value="http://hl7.org/fhir/message-significance-category"/><identifier><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.4.642.4.189"/></identifier><identifier><use value="old"/><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.4.642.1.179"/></identifier><identifier><use value="old"/><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.4.642.2.88"/></identifier><version value="6.0.0-ballot4"/><name value="MessageSignificanceCategory"/><title value="Message Significance Category"/><status value="active"/><experimental value="false"/><date value="2021-01-05T10:01:24+11:00"/><publisher value="HL7 (FHIR Project)"/><contact><telecom><system value="url"/><value value="http://hl7.org/fhir"/></telecom><telecom><system value="email"/><value value="fhir@lists.hl7.org"/></telecom></contact><description value="The impact of the content of a message."/><jurisdiction><coding><system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/><code value="001"/><display value="World"/></coding></jurisdiction><caseSensitive value="true"/><valueSet value="http://hl7.org/fhir/ValueSet/message-significance-category"/><content value="complete"/><concept><code value="consequence"/><display value="Consequence"/><definition value="The message represents/requests a change that should not be processed more than once; e.g., making a booking for an appointment."/></concept><concept><code value="currency"/><display value="Currency"/><definition value="The message represents a response to query for current information. Retrospective processing is wrong and/or wasteful."/></concept><concept><code value="notification"/><display value="Notification"/><definition value="The content is not necessarily intended to be current, and it can be reprocessed, though there may be version issues created by processing old notifications."/></concept></CodeSystem>