---
type: "example"
title: "SubscriptionTopic Example: subscriptiontopic-example"
resource: "SubscriptionTopic"
example: "subscriptiontopic-example"
---
# SubscriptionTopic Example: subscriptiontopic-example

## Example XML



```xml
<?xml version="1.0" encoding="UTF-8"?><SubscriptionTopic xmlns="http://hl7.org/fhir" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://hl7.org/fhir ../../schema/SubscriptionTopic.xsd">
	<id value="example"/>
	<url value="http://example.org/FHIR/SubscriptionTopic/example"/>
	<identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:uuid:1caa02ba-051b-4602-8856-65921748ae76"/>
  </identifier>
  <version value="1.0.0-beta.1"/>
  <title value="example"/>
	<status value="draft"/>
  <date value="2019-01-01"/>
  <description value="Example topic for completed encounters"/>
	<trigger>
		<description value="An Encounter has been completed"/>
		<resource value="http://hl7.org/fhir/StructureDefinition/Encounter"/>
    <supportedInteraction value="update"/>
		<queryCriteria>
			<previous value="status:not=completed"/>
      <resultForCreate value="test-passes"/>
			<current value="status=completed"/>
      <resultForDelete value="test-fails"/>
			<requireBoth value="true"/>
		</queryCriteria>
		<fhirPathCriteria value="(%previous.empty() | (%previous.status != 'completed')) and (%current.status = 'completed')"/>
    <canFilterBy>
      <description value="Filter based on the subject of an encounter."/>
      <resource value="Encounter"/>
      <filterParameter value="subject"/>
    </canFilterBy>
    <canFilterBy>
      <description value="Filter based on the group membership of the subject of an encounter."/>
      <resource value="Encounter"/>
      <filterParameter value="_in"/>
    </canFilterBy>
    <canFilterBy>
      <description value="Filter based on the length of an encounter."/>
      <resource value="Encounter"/>
      <filterParameter value="length"/>
      <comparator value="gt"/>
      <comparator value="lt"/>
      <comparator value="ge"/>
      <comparator value="le"/>
    </canFilterBy>
    <canFilterBy>
      <description value="Filter based on the account for billing an encounter."/>
      <resource value="Encounter"/>
      <filterParameter value="account"/>
      <modifier value="missing"/>
      <modifier value="not"/>
      <modifier value="identifier"/>
    </canFilterBy>
    <notificationShape>
      <resource value="Encounter"/>
      <include value="Encounter:patient&amp;iterate=Patient.link"/>
      <include value="Encounter:practitioner"/>
      <include value="Encounter:service-provider"/>
      <include value="Encounter:account"/>
      <include value="Encounter:diagnosis"/>
      <include value="Encounter:observation"/>
      <include value="Encounter:location"/>
      <relatedQuery>
        <queryType>
          <coding>
            <system value="http://example.org/fhir/CodeSystem-patient-queries"/>
            <code value="current-patient"/>
          </coding>
        </queryType>
        <query value="Patient?_include:iterate=Patient:link"/>
      </relatedQuery>
      <relatedQuery>
        <queryType>
          <system value="http://example.org/fhir/CodeSystem-patient-queries"/>
          <code value="current-providers"/>
        </queryType>
        <query value="$current-providers"/>
      </relatedQuery>
    </notificationShape>
	</trigger>
</SubscriptionTopic>
```