<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="PresurgeryObservation" />
  <url value="http://mrdm.nl/profiles/fhir/r4/dbir/StructureDefinition/PresurgeryObservation" />
  <name value="PresurgeryObservation" />
  <status value="draft" />
  <description value="Any pre-surgery observation registered by a questionnaire. In the DBIR registry this can include the following measurements:&#xD;&#xA;- ASA classification&#xD;&#xA;- nicotine abuse&#xD;&#xA;- height&#xD;&#xA;- weight" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation.code.coding.system">
      <path value="Observation.code.coding.system" />
      <min value="1" />
    </element>
    <element id="Observation.code.coding.code">
      <path value="Observation.code.coding.code" />
      <code>
        <system value="http://snomed.info/sct" />
        <code value="724697004" />
      </code>
      <code>
        <system value="http://snomed.info/sct" />
        <code value="273270000" />
      </code>
      <code>
        <system value="http://loinc.org" />
        <code value="29463-7" />
      </code>
      <code>
        <system value="http://loinc.org" />
        <code value="8302-2" />
      </code>
      <min value="1" />
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject" />
      <min value="1" />
    </element>
    <element id="Observation.encounter">
      <path value="Observation.encounter" />
      <min value="1" />
    </element>
  </differential>
</StructureDefinition>