<status value="active"/> <date value="2014-03-26"/> <description value="A substance (player) added to a mixture (scoper) to make it taste a certain way. In food the use is obvious, in pharmaceuticals flavors can hide disgusting taste of the active ingredient (important in pediatric treatments)."/> <immutable value="true"/> <compose> <include> <system value="http://terminology.hl7.org/CodeSystem/v3-RoleClass"/> <filter> <property value="concept"/> <op value="is-a"/> <value value="FLVR"/> </filter> </include> </compose> </ValueSet>