27422 Patellar reconstruction Medicare reimbursement rates in Arkansas

An orthopedic surgeon uses this service to surgically address recurrent patellar instability, such as a kneecap that repeatedly slips out of position. The reconstruction includes realignment of the extensor mechanism, muscle advancement, or imbrication as part of stabilizing the patella. It is typically performed in a hospital or ambulatory surgery setting; CMS recorded these services in facility settings in 2024.

Choose this code when the operative report supports the instability reconstruction and the added realignment or muscle work, rather than a soft-tissue reconstruction without those elements. Document the affected knee, the instability being treated, and the structures and techniques used. Medicare assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in the same session, the highest-valued procedure is paid in full and others at 50%. Bilateral reporting with modifier 50 is paid at 150%. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team surgery is not permitted.