Hi Allison
1. It seems unlikely you would have a Patient-related UID to reference in the first
place, so why would you be wanting to populate Referenced Patient Sequence? Identifying
patients by a UID has not proven to be useful/popular.
2. Detached Patient Management SOP Class (Retired) "1.2.840.10008.3.1.2.1.1".
For a similar situation for studies, there is a specific note about it:
https://dicom.nema.org/medical/dicom/current/output/chtml/part03/sect_10.6.html#sect_10.6.1
but that is important, since references to Studies by their UID are actually used.
David