---
type: "codesystem"
title: "Message Significance Category"
codesystem: "message-significance-category"
---
# Message Significance Category

- **Official URL**: http://hl7.org/fhir/message-significance-category
- **Version**: 6.0.0
- **Status**: active
- **Name**: MessageSignificanceCategory
- **Title**: Message Significance Category
- **Publisher**: HL7 (FHIR Project)
- **Description**: The impact of the content of a message.
- **Case Sensitive**: true
- **Content**: complete

## Concepts

| Code | Display | Definition |
| --- | --- | --- |
| consequence | Consequence | The message represents/requests a change that should not be processed more than once; e.g., making a booking for an appointment. |
| currency | Currency | The message represents a response to query for current information. Retrospective processing is wrong and/or wasteful. |
| notification | Notification | 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. |

## CodeSystem XML



```xml
<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="message-significance-category"/>
  <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"/>
  <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."/>
  <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>
```