My ortho surgeon performed a fibular osteotomy with a total ankle arthroplasty. The description of the arthroplasty does not appear to include that work, but CCI edits of 27702 and 27707 say can be billed with 59 modifier. The diagnoses for the procedure are DJD, instability and anterior talar subluxation. I am questioning if the work of the osteotomy was to reach the ankle and therefore not separately billable. Does anyone have experience with this?