Also known as: Osteoarthritis of knee, unspecified / Osteoarthritis knee / Knee osteoarthritis / Osteoarthritis, Knee / Osteoarthritis of knee / OA knee / Osteo arthritis knees / Osteoarthritis knees / Osteoarthritis of knee (disorder) / Osteoarthritis, unspecified site / Unspecified osteoarthritis, unspecified site / Osteoarthritis NOS / Degenerative joint disease / Osteoarthrosis, unspecified whether generalized or localized / Osteoarthrosis / Osteoarthritis / Osteoarthritis (disorder) / Degenerative polyarthritis (disorder)