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

This diagnosis code signifies a chronic inflammatory arthritis caused by elevated lead levels, specifically affecting the left elbow. The presence of tophi indicates the deposition of monosodium urate crystals, a hallmark of advanced gout. This condition is characterized by recurrent painful flares and joint damage.

Apply this code when documentation clearly states a diagnosis of chronic gout directly attributed to lead exposure, with involvement of the left elbow. The medical record must also confirm the presence of tophaceous deposits in or around the left elbow joint. This code is appropriate when the lead-induced etiology and specific joint involvement are explicitly documented.

• Ensure documentation explicitly links the gout to lead exposure; otherwise, a different etiology code for chronic gout may be more appropriate.
• Verify the specific joint involved is the left elbow; laterality and joint specificity are crucial for accurate coding.
• Confirm the presence of tophi; if tophi are not documented, a code without tophi (e.g., M1A.1220) should be considered.