Icd 9 osteoarthritis right knee July 8, 2019 16 32 64 128 Icd 9 code for osteoarthritis right knee Icd 9 code for unilateral primary osteoarthritis right knee Unilateral primary osteoarthritis right knee icd 9 Icd 9 osteoarthrosis Osteoarthritis of right knee icd 10 Knee arthritis icd 9