Dermatologist in particular find the need to use modifier 25 more frequently than many other specialties, and with that modifier being constantly under review, it means that you are more likely to face a review of your records. Our practice had large requests like this frequently.
It is frustrating, but modifier 25 is heavily abused (maybe not on purpose, but it is) and the OIG has identified it as a code that leads to inappropriate payments.
Make sure that your practice is using the modifier correctly, and that you are documenting a patient's visit accurately and correctly. While time consuming, the reviews happen for a reason for this modifier and as long as you can support the separate visit, you have nothing to worry about!
Karl, in the post above has a great and super useful tip that I used for dermatology and still do. His highlighter tip absolutely works to ensure an office visit stands on its own. I see he is from Ellzey Coding, and that is where I originally learned the tip.
I know how frustrating it can be.