AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2023 Issue 3; Ask the Editor

Patella Resurfacing and Tibial Liner Exchange

A patient underwent surgery for treatment of a left total knee arthroplasty (TKA) instability. An arthrotomy was performed and the provider decided to proceed with patellar resurfacing and a polyethylene liner exchange to increase the size of the liner. The original liner was removed and a trial liner was placed. A standard resurfacing cut was performed on the patella, the patella was sized, and pegs were drilled. A trial patella was placed and the knee was taken through range of motion. The trial patella and trial liner were removed, the patella was cemented in standard fashion, and the new liner was locked into place. What is the correct root operation and body part value for patella resurfacing with tibial polyethylene liner exchange? ...

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