You now mention the use of a graft in this procedure to repair/reconstruct the Rotator Cuff. You are correct in that if a graft was placed, it was either used to supplement/reinforce the repair (if it could be completed/repaired back to bone), or it was used to "fill in and bridge the gap" between the lateral edge of the cuff (that could not be advanced laterally so it could be repaired to the humerus/tuberosity) and the tuberosity thus allowing for it to be repaired to bone. This also "closes the gap" so to speak in the cuff. In that respect, this was a "Reconstruction" of the Rotator Cuff for an extensive chronic tear. Unfortunately, even though the surgeon was able to do this arthroscopically, the arthroscopic code for Rotator Cuff Repair (29827) is grossly inadequate for the amount of work done to do this procedure. This code is for the more simple and less complicated repairs, not necessarily for "reconstructions" like this appears to have been. In that respect, an Unlisted arthroscopy code: 29999 paired to
23420: Reconstruction of complete shoulder (cuff) avulsion, chronic might be a better option.
I hope this helps too/more now that you have given more information.
Sincerely, Alan Pechacek, M.D.