<status value="active"/> <date value="2014-03-26"/> <description value="Condition must be true throughout the execution and the service is interrupted (asynchronously) as soon as the condition turns false (asynchronous WHILE loop). The service must be interruptible."/> <immutable value="true"/> <compose> <include> <system value="http://terminology.hl7.org/CodeSystem/v3-ActRelationshipCheckpoint"/> <filter> <property value="concept"/> <op value="is-a"/> <value value="T"/> </filter> </include> </compose> </ValueSet>