Monoarthritis, not elsewhere classified, right hand

This code signifies inflammation of a single joint in the right hand that is not attributable to a specific, classified arthritic condition. It indicates a localized inflammatory process affecting only one joint, without an underlying systemic or infectious cause identified.

Apply this code when documentation specifies monoarthritis affecting the right hand, and further diagnostic workup has ruled out other specific forms of arthritis (e.g., rheumatoid arthritis, gout, infectious arthritis). Supporting documentation should clearly state "monoarthritis, right hand" and indicate that it is "not elsewhere classified" or that specific causes have been excluded.

• Ensure documentation specifies "right hand" and not a general hand or unspecified side.
• Verify that no more specific arthritis diagnosis (e.g., M05.xx, M10.xx) is applicable before using this code.
• Always review the medical record for any underlying cause or associated conditions that might require additional coding.