Lead-induced chronic gout, right hand, without tophus

This code signifies a chronic inflammatory arthritis affecting the right hand, specifically caused by elevated lead levels in the body. It indicates the presence of gout without the characteristic nodular deposits of uric acid crystals (tophi). The condition is persistent, rather than an acute flare-up.

Apply this code when documentation clearly states chronic gout in the right hand, explicitly linked to lead exposure, and confirms the absence of tophi. This diagnosis is typically supported by laboratory findings of elevated lead levels and uric acid, along with clinical examination noting chronic right hand joint pain and inflammation consistent with gout.

• Ensure documentation specifies "chronic" gout and "right hand" involvement.
• Verify the absence of tophi; if tophi are present, a different subclassification code is required.
• Always code the underlying lead poisoning (e.g., T56.0X1-) as a primary or secondary diagnosis, depending on the clinical scenario, to fully explain the etiology.