Idiopathic chronic gout, right shoulder, with tophus (tophi)

This code signifies a chronic, primary form of gout affecting the right shoulder joint, characterized by the presence of tophi. Tophi are deposits of monosodium urate crystals that form visible or palpable nodules, indicating advanced or poorly controlled hyperuricemia.

Apply this code when documentation clearly indicates a diagnosis of idiopathic chronic gout specifically impacting the right shoulder, and the presence of tophaceous deposits is confirmed. This typically applies to patients with a history of recurrent gout flares and evidence of crystal deposition.

• Ensure the documentation specifies "idiopathic" or "primary" gout to differentiate from secondary forms.
• Verify the affected joint is explicitly stated as the "right shoulder" and that tophi are present.
• Do not use this code for acute gout flares or chronic gout without documented tophi.