Lead-induced chronic gout, right elbow, with tophus (tophi)

This code signifies a chronic inflammatory arthritis of the right elbow caused by lead toxicity, characterized by the presence of tophi. Tophi are deposits of monosodium urate crystals that form visible lumps under the skin or in other tissues, indicating advanced gout.

Use this code when documentation clearly states a diagnosis of chronic gout directly attributed to lead exposure, specifically affecting the right elbow, and explicitly mentions the presence of tophaceous deposits. This typically occurs in patients with a history of lead poisoning or significant lead exposure.

• Ensure documentation specifies "chronic" gout and a clear causal link to lead.
• Verify the affected joint is the "right elbow" and that "tophus" or "tophi" are present.
• Always sequence a code for lead poisoning (e.g., T56.0X1- or T56.0X2-) as an underlying cause, if not already resolved.