Can some one help clear up a question ? Our provider gave me procedure code 27607,20702 add on code. when I look up procedure code 20702 we can only bill certain procedures with it and mine is not one of them for any of the series of codes. The provider says in his notes that he took the screws out of the ankle from a previous fracture patient also as osteomyelitis then vancomycin and gentamicin calcium sulfate beads were made . These were placed into the distal screw holes and into the canal and then into the canal proximally and impacted. Do you agree with using procedures 11981-11983 ? I can't think of another code that would work any suggestions?