Does Campagnolo have a groupset model number system?
If compatibility is what you're after, you should know that it's not always necessary to use the same group. Many times, you can mix and match different groups,  even different manufacturers.

As far as I know, all 10-speed Campy geartrain components should be compatible with each other. You have to consider the capacity of both derailleurs relative to your gearing, but you have to do that even if using the same group for everything.