<SearchParameter xmlns="http://hl7.org/fhir">
  <id value="bundle-composition-immunization-occurrence" />
  <url value="http://ontariohealth.ca/fhir/ir/SearchParameter/bundle-composition-immunization-occurrence" />
  <version value="1.0.0" />
  <name value="CompositionImmunizationOccurrence" />
  <status value="active" />
  <experimental value="false" />
  <date value="2026-05-29" />
  <publisher value="Ontario Health" />
  <contact>
    <name value="Ontario Health" />
    <telecom>
      <system value="url" />
      <value value="http://ontariohealth.ca" />
    </telecom>
  </contact>
  <description value="This parameter filters the document bundle content based on the specific vaccine administration occurrence date." />
  <purpose value="Need to search immunization records within document bundles by administration occurrence date" />
  <code value="composition.immunization.occurrence" />
  <base value="Bundle" />
  <type value="date" />
  <expression value="Bundle.entry.resource.ofType(Immunization).occurrence" />
</SearchParameter>