repeatable course

How would you translate "repeatable" into French in the context of a university transcript, referring to a course that one may repeat for credit (for example a course that you can take more than once but that will still count towards your accumulation of credits)? I am translating the codes on a transcript and need to translate "r: repeatable" so I am looking for a brief translation of just a word if that makes sense in French.

Thanks for your help!

literally, it would be "redoublable" but the problem is all courses are repeatable in the French university system, except it wouldn't count more than once in your accumulation of credits.
I feel you'll have to use "redoublable" ad ad a footnote

Great, thanks so much. I think I won't go into detail with a footnote since it doesn't even pertain to this transcript (the student didn't have any repeatable courses) but it is just in the list of codes.

A "repeatable course" is one whose content changes each time it is given, and which may therefore be taken several times, for additional credit each time. "Un cours à contenu variable" ???