Drug-induced chronic gout, left hip, with tophus (tophi)

This code signifies a chronic inflammatory arthritis of the left hip joint caused by medication, characterized by the presence of urate crystal deposits (tophi). The drug-induced nature differentiates it from primary gout, and the chronicity implies persistent or recurrent inflammation.

Apply this code when documentation clearly states chronic gout of the left hip, explicitly linked to a specific drug, and confirms the presence of tophi. This typically occurs in patients with a history of medication use (e.g., diuretics, aspirin) contributing to hyperuricemia and subsequent gout attacks.

• Ensure the documentation specifies "drug-induced" and identifies the causative drug if possible (though not required for this specific code).
• Verify the laterality (left hip) and the presence of tophi are clearly documented.
• Do not use this code for acute drug-induced gout; a different subcategory would apply.