<status value="active"/> <date value="2014-03-26"/> <description value="An event that occurred outside of the control of one or more of the parties involved. Includes the concept of an accident."/> <immutable value="true"/> <compose> <include> <system value="http://terminology.hl7.org/CodeSystem/v3-ActClass"/> <filter> <property value="concept"/> <op value="is-a"/> <value value="INC"/> </filter> </include> </compose> </ValueSet>