DICOM PS3.3 2020a - Information Object Definitions

A.19.4 RT Structure Set IOD Content Constraints

The Defined CID for Purpose of Reference Code Sequence (0040,A170) within Source Instance Sequence (0042,0013) in the General Reference Module shall be CID 7019 “Segmentation Non-Image Source Purposes of Reference”.

DICOM PS3.3 2020a - Information Object Definitions