M05.7 - Rheumatoid arthritis with rheumatoid factor without organ or systems involvement
M05.76 - Rheumatoid arthritis with rheumatoid factor of knee without organ or systems involvement
M05.761 - Rheumatoid arthritis with rheumatoid factor of right knee without organ or systems involvement
M05.762 - Rheumatoid arthritis with rheumatoid factor of left knee without organ or systems involvement
M05.769 - Rheumatoid arthritis with rheumatoid factor of unspecified knee without organ or systems involvement