Your physician probably did an Arthroscopic Irrigation, Debridement (limited or extensive?), and Synovectomy (partial or complete?). I would check with your physician for more details about what he did. From what I understand, payers don't give much "Credence" to Arthroscopic "Debridement" procedures, so I would lean more toward a Synovectomy code, as that might be given better "Credence" as a code, and be better reimbursed.
Respectfully submitted, Alan Pechacek, M.D.