Rheumatoid arthritis without rheumatoid factor, unsp wrist

This diagnosis code identifies a chronic autoimmune inflammatory condition primarily affecting the synovial lining of joints, specifically in an unspecified wrist. It indicates the absence of rheumatoid factor (RF) in diagnostic testing, classifying it as seronegative rheumatoid arthritis. The condition leads to pain, swelling, stiffness, and potential joint damage.

Apply this code when documentation confirms a diagnosis of rheumatoid arthritis affecting the wrist, and laboratory results indicate a negative rheumatoid factor. This code is appropriate when the specific wrist (left or right) is not documented. Supporting documentation should include physician notes detailing the diagnosis, clinical findings, and serology results.

• Ensure documentation explicitly states "seronegative" or "without rheumatoid factor" for the RA diagnosis.
• Avoid using this code if the specific wrist (left or right) is identified; use the more specific codes M06.031 or M06.032 instead.
• Consider sequencing this code with codes for associated complications or manifestations, if applicable.