Our office has recently credentialed with a lot of insurance companies and we are learning a lot about billing. Today we received a denial from Medicare for a Urinalysis (81002) due to "The code is inconsistent with the modifier used or a modifier is missing." We have billed with and without the QW modifier and both have been denied. We have read some people put modifier 25 on the E/M code, then others have said not to. Does anyone have any advice for us newbies? Thanks in advance! ![Eek! :eek: :eek:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)