Lead-induced gout, unspecified ankle and foot

This code represents gout that is specifically caused by lead exposure, affecting an unspecified ankle and/or foot. Gout is an inflammatory arthritis characterized by sudden, severe attacks of pain, redness, and tenderness in joints, caused by the deposition of uric acid crystals. In this case, the etiology is directly linked to lead toxicity.

Use this code when documentation clearly states a diagnosis of lead-induced gout affecting the ankle and/or foot, without specifying laterality. This diagnosis requires evidence of elevated lead levels or a history of lead exposure, alongside clinical and laboratory findings consistent with gout.

• Ensure documentation explicitly links the gout to lead exposure; otherwise, use a code for gout of unspecified etiology.
• If the specific ankle (right or left) is documented, use the more specific code (M10.171 or M10.172).
• Code any associated lead toxicity (e.g., T56.0X1-) as a secondary diagnosis.