I am struggling with an orthopedic office and an unlisted code of 29999, which I am using to code either an arthroscopic corocoplasty OR a micfrofracture of greater tuberosity. The surgeons office is not booking with this procedure and when we ask they say they are not going to do it, but end up doing it. The problem is with my Medicare patients, Medicare leaves it to their responsibilities, and I am not having them sign an ABN because the surgeon is stating he will not be doing that procedure. The surgeons office is not disclosing if they bill or not the 29999 (kind of shady). I need help with this code. Can the ortho clinic legally not bill this code even though it is on the op report? any advice would be helpful on this matter. I need something concrete to go to the surgeon ortho clinic about this, but I cannot find anything. Thank you