Yes, PCV (gasser term) = CCV (diesel term). Pretty much. They both do the same thing. There really isn't a difference except that VW wants to call it something different. Might be related to german arrogance, or american vs european industrial terminology, but who knows?
There's a few other nomenclative anomalies. I don't really know what they would be at this point, but I am sure there are plenty. Some of them are because this is a diesel community, so there's stuff that happens because of that. For example, you can have a go-pedal, fuel pedal, skinny pedal, but technically you can't have a gas pedal because these cars run on a fuel that is NOT gasoline. You don't have a gas mileage, but you do have a fuel mileage, but everyone still calls it mpg. And sometime people refer to mpg when they really mean mph, but that's just typing without thinking or proofreading.
I think there's at least one thread with one or more pages of VW TDI acronyms. Maybe you can find it with a search.
Cheers,
PH