DICOM PS3.18 2019a - Web Services
6.10.3.3.2 Behavior

The origin server stores the representations contained in the request payload so that they may be retrieved later using the Retrieve transaction.

Before storing the representations, the origin server may coerce data elements.

If any element is coerced, the Original Attribute Sequence (0400,0561) (see C.12.1 in PS3.3 ) shall be included in the stored DICOM instances. Both the Original Attribute Sequence and the response shall describe the modifications.

DICOM PS3.18 2019a - Web Services