Lead-induced chronic gout, unspecified elbow, with tophus

This code signifies a chronic inflammatory arthritis caused by elevated lead levels, specifically affecting an unspecified elbow joint. The condition is characterized by the presence of tophi, which are deposits of uric acid crystals in soft tissues. This represents a long-standing form of gout with a clear etiological link to lead exposure.

Apply this code when documentation confirms chronic gout in the elbow, explicitly attributed to lead poisoning, and the presence of tophaceous deposits. This diagnosis requires a history of lead exposure and laboratory confirmation of elevated lead levels, alongside clinical and imaging evidence of gouty arthritis with tophi in the elbow.

• Ensure documentation clearly links the gout to lead exposure; otherwise, a different etiology of chronic gout should be coded.
• Verify the presence of tophi; if absent, a different code for lead-induced chronic gout without tophi would be appropriate.
• Confirm the affected joint is the elbow; if another joint is involved, select the corresponding anatomical site.