Icd 10 left knee patellofemoral instability July 8, 2019 16 32 64 128 Icd 10 code for left knee patellofemoral instability Icd 10 code for patellofemoral disorders left knee Patellofemoral ligament tear icd 10 Icd 10 patellofemoral osteoarthritis Patella instability icd 10