<status value="active"/> <date value="2014-03-26"/> <description value="A special link between pharmaceuticals indicating that the target (scoper) is a generic for the source (player)."/> <immutable value="true"/> <compose> <include> <system value="http://terminology.hl7.org/CodeSystem/v3-RoleClass"/> <filter> <property value="concept"/> <op value="is-a"/> <value value="GRIC"/> </filter> </include> </compose> </ValueSet>