Gout due to renal impairment, left knee

This diagnosis code signifies gout that has developed as a direct consequence of impaired kidney function, specifically affecting the left knee. Renal impairment leads to elevated uric acid levels, which can precipitate in joints, causing the characteristic inflammatory arthritis of gout.

Use this code when documentation clearly links the patient's gout in the left knee to an underlying renal impairment. This typically applies to patients with chronic kidney disease, acute kidney injury, or other conditions compromising renal excretion of uric acid. Supporting documentation should include a diagnosis of gout, laterality of the affected joint, and evidence of renal dysfunction.

• Always confirm the laterality (left knee) is explicitly documented.
• Ensure documentation specifies the causal link between renal impairment and the gout.
• Code the underlying renal impairment concurrently, following sequencing guidelines.