This value set includes codes based on the following rules:

<status value="draft"/><experimental value="true"/><date value="2016-05-18T16:57:59+00:00"/><publisher value="FHIR Project team"/><contact><telecom><system value="url"/><value value="http://hl7.org/fhir"/></telecom></contact><description value="This value set includes [SNOMED CT](http://snomed.info/sct) where concept is-a 105590001 (Substance (substance)) or concept is-a 260787004 (Physical object) and provided as an example value set."/><copyright value="This value set includes content from SNOMED CT, which is copyright © 2002+ International Health Terminology Standards Development Organisation (IHTSDO), and distributed by agreement between IHTSDO and HL7. Implementer use of SNOMED CT is not covered by this agreement."/><compose><include><system value="http://snomed.info/sct"/><filter><property value="concept"/><op value="is-a"/><value value="105590001"/></filter></include><include><system value="http://snomed.info/sct"/><filter><property value="concept"/><op value="is-a"/><value value="260787004"/></filter></include></compose></ValueSet>