<status value="active"/> <date value="2014-03-26"/> <description value="An entity (person, organization or device) that is in charge of maintaining the information of this act (e.g., who maintains the report or the master service catalog item, etc.)."/> <immutable value="true"/> <compose> <include> <system value="http://terminology.hl7.org/CodeSystem/v3-ParticipationType"/> <filter> <property value="concept"/> <op value="is-a"/> <value value="CST"/> </filter> </include> </compose> </ValueSet>