This value set includes codes based on the following rules:

This value set excludes codes based on the following rules:

 <status value="active"/> <date value="2014-03-26"/> <description value="Diffusion"/> <compose> <include> <system value="http://terminology.hl7.org/CodeSystem/v3-RouteOfAdministration"/> <filter> <property value="concept"/> <op value="is-a"/> <value value="_Diffusion"/> </filter> </include> <exclude> <system value="http://terminology.hl7.org/CodeSystem/v3-RouteOfAdministration"/> <concept> <code value="_Diffusion"/> </concept> </exclude> </compose> </ValueSet>