Gout due to renal impairment, left ankle and foot

This code signifies gout that has developed as a direct consequence of impaired kidney function, specifically affecting the left ankle and foot. It indicates a secondary form of gout where the body's inability to properly excrete uric acid due to renal issues leads to crystal deposition in these specific joints.

Use this code when documentation clearly links the patient's gout in the left ankle and foot to an underlying renal impairment. This applies to patients with chronic kidney disease, acute kidney injury, or other renal conditions contributing to hyperuricemia and subsequent gout attacks. Supporting documentation should include physician notes detailing the renal etiology and the specific joint involvement.

• Ensure documentation explicitly states the causal link between renal impairment and gout.
• Do not use this code for primary gout or gout due to other secondary causes (e.g., drug-induced) without renal involvement.
• Always code the underlying renal condition first, followed by this code to demonstrate the etiology.