<?xml version=“1.0” encoding=“UTF-8”?> <Substance xmlns=“hl7.org/fhir”>
<id value="f203"/> <meta> <security> <system value="http://terminology.hl7.org/CodeSystem/v3-ActReason"/> <code value="HTEST"/> <display value="test health data"/> </security> </meta> <identifier> <system value="http://acme.org/identifiers/substances"/> <value value="1234"/> </identifier> <category><coding> <system value="http://terminology.hl7.org/CodeSystem/substance-category"/> <code value="chemical"/> <display value="Chemical"/> </coding></category> <code> <coding> <system value="http://snomed.info/sct"/> <code value="88480006"/> <display value="Potassium"/> </coding> </code>
</Substance>