Thanks for answering Kristin. So can I use these examples: Pain left leg, pain right leg, nails....11721 only, and choose dx for nails and pain on same line? We also received a letter from CGS last year that said they were watching us for using too many 25 modifiers, so I started billing the 99212 with B351 and 11721 with B351 and a 59. How do you know when you are using too many 25's? And now, I've seen the payer has recently rejected a bunch of my November claims that were billed this way, which is why I'm wondering about just using the 11721/11720 only and choosing B351 and E119 (or pain) as 2nd dx.