I'm pretty sure you won't be able to do this in v3 lists. You can however, probably do something along these lines in v4. You can append the with_genres param which will filter the results. Notice the high level list stats don't change however, but if you look at the items returned in the results array, they are being filtered.

https://api.themoviedb.org/4/list/143355?api_key=<<api_key>>&with_genres=12