Idiopathic chronic gout, right hand, without tophus (tophi)

This code signifies a persistent, long-term form of gout affecting the right hand, where the underlying cause is unknown (idiopathic). It specifically indicates the absence of tophi, which are characteristic urate crystal deposits that can form in chronic gout.

Apply this code when documentation confirms a diagnosis of chronic gout in the right hand without an identifiable secondary cause, and no tophaceous deposits are noted. This is appropriate for patients experiencing recurrent gout flares or persistent symptoms in the right hand without visible or palpable tophi.

• Ensure documentation explicitly states "idiopathic" or "primary" and "chronic" gout.
• Verify the affected joint is the right hand and that tophi are specifically absent.
• Distinguish from acute gout (M10.041) and gout with tophi (M1A.1410).