I have been having an issue getting paid by UHC Americhoice and dual complete for both my smoking cessations and vaccines. If I send my smoking cessation without a modifier it will deny as service bundled. If I add a 59 modifier it denies as procedure inconsistent with the modifier used/required modifier missing. I am at a loss and when I call they have no idea what I am talking about and when I appeal they just tell me to send a corrected claim (which has already been done) or decision upheld with no explanation. Any suggestions as to what modifier I should be using? or anyone else have this same issue? This is just a regular medical clinic that does office visits.