<OperationDefinition xmlns="http://hl7.org/fhir">
  <id value="patient-last-update-by-identifier" />
  <url value="http://smis.ch/fhir/OperationDefinition/patient-last-update-by-identifier" />
  <version value="1.0" />
  <name value="Health record update date by external patient id" />
  <status value="draft" />
  <kind value="operation" />
  <date value="2018-08-28" />
  <publisher value="Arpage AG" />
  <description value="Operation to get the update date of the last change to the health record of a patient" />
  <idempotent value="true" />
  <code value="last-update" />
  <resource value="Patient" />
  <system value="false" />
  <type value="true" />
  <instance value="false" />
  <parameter>
    <name value="identifier" />
    <use value="in" />
    <min value="1" />
    <max value="1" />
    <documentation value="External patient id" />
    <type value="string" />
    <searchType value="token" />
  </parameter>
  <parameter>
    <name value="lastPatientUpdate" />
    <use value="out" />
    <min value="1" />
    <max value="1" />
    <type value="dateTime" />
  </parameter>
</OperationDefinition>