Allowed metadatas are $XDSDocumentEntryPatientId, $XDSDocumentEntryEntryUUID, $XDSDocumentEntryUniqueId, $XDSDocumentEntryPracticeSettingCode, $XDSDocumentEntryCreationTimeFrom, $XDSDocumentEntryCreationTimeTo, $XDSDocumentEntryServiceStartTimeFrom, $XDSDocumentEntryServiceStartTimeTo, $XDSDocumentEntryServiceStopTimeFrom, $XDSDocumentEntryServiceStopTimeTo, $XDSDocumentEntryHealthcareFacilityTypeCode, $XDSDocumentEntryEventCodeList, $XDSDocumentEntryConfidentialityCode, $XDSDocumentEntryAuthorPerson, $XDSDocumentEntryStatus on FindPrescriptionsForDispense messageType (IHE_PHARM_Suppl_CMPD_Rev1, 3.1.4.1.2.1.1.2)