Lead-induced chronic gout, left elbow, without tophus

This diagnosis code identifies chronic inflammatory arthritis of the left elbow caused by lead toxicity, specifically in the absence of urate crystal deposits (tophi). It indicates a persistent form of gout where lead exposure is the underlying etiological factor.

Apply this code when documentation clearly states chronic gout affecting the left elbow, explicitly linked to lead poisoning, and confirms the absence of tophaceous deposits. Supporting documentation would include a history of lead exposure, elevated lead levels, and clinical findings consistent with chronic gout in the specified joint.

• Ensure documentation specifies "chronic" gout and the "left elbow" as the affected joint.
• Verify that "lead-induced" is explicitly stated as the cause, not just a co-occurring condition.
• Confirm the absence of tophi; if present, a different code from the M1A.122- series would be appropriate.