Oth rheumatoid arthritis w rheumatoid factor of right knee

Other rheumatoid arthritis with rheumatoid factor of right knee

📋Clinical Description

This diagnosis code signifies a form of rheumatoid arthritis affecting the right knee, characterized by the presence of rheumatoid factor (RF) in the patient's blood, but not meeting criteria for other specified types of rheumatoid arthritis. It indicates an inflammatory autoimmune condition primarily impacting the synovial lining of the right knee joint.

🎯When to Use

This code is appropriate when documentation confirms a diagnosis of rheumatoid arthritis with positive rheumatoid factor, specifically affecting the right knee, and the condition is not further specified as seropositive, seronegative, or other defined types. Use when the provider explicitly states "other rheumatoid arthritis" or similar phrasing, along with positive RF and right knee involvement.

💡Coding Tips

Ensure documentation clearly specifies "right knee" and the presence of rheumatoid factor.
Distinguish from M05.0-M05.7 codes, which specify different types of seropositive rheumatoid arthritis.
Always sequence this code after any underlying systemic conditions or manifestations, if applicable.

AI-generated reference — verify against official guidelines

Code Hierarchy

▲M05.86Other rheumatoid arthritis with rheumatoid factor of knee

M05.861(current)

Crosswalks

714.0ApproxICD-9

Same Category

M05Rheumatoid arthritis with rheumatoid factor M05.0Felty's syndrome M05.00Felty's syndrome, unspecified site M05.01Felty's syndrome, shoulder M05.011Felty's syndrome, right shoulder