Unilateral primary oa right knee icd 10 July 8, 2019 16 32 64 128 Unilateral primary osteoarthritis unspecified knee icd 10 Unilateral primary osteoarthritis left knee icd 10 Unilateral primary osteoarthritis right hip icd 10 Oa right knee icd 10 Unilateral primary osteoarthritis left hip icd 10