<?xml version="1.0" encoding="UTF-8"?><Substance xmlns="http://hl7.org/fhir">
  <id value="f204"/>
  <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/lot"/>
    <value value="AB94687"/>
  </identifier>
  <category>
    <coding>
      <system value="http://terminology.hl7.org/CodeSystem/substance-category"/>
      <code value="chemical"/>
      <display value="Chemical"/>
    </coding>
  </category>
  <code>
    <concept>
      <coding>
        <system value="http://snomed.info/sct"/>
        <code value="333346007"/>
        <display value="Silver nitrate 200 mg/mL cutaneous solution"/>
      </coding>
    </concept>
  </code>
  <description value="Solution for silver nitrate stain"/>
  <expiry value="2018-01-01"/>
  <quantity>
    <value value="100"/>
    <unit value="mL"/>
    <system value="http://unitsofmeasure.org"/>
    <code value="mL"/>
  </quantity>
</Substance>