Chronic gout due to renal impairment, right ank/ft, w/o toph

This code signifies a persistent inflammatory arthritis affecting the right ankle and foot, caused by elevated uric acid levels resulting from impaired kidney function. It specifically indicates the absence of tophi, which are uric acid crystal deposits in soft tissues.

Apply this code when documentation confirms a diagnosis of chronic gout directly attributed to renal insufficiency, localized to the right ankle and/or foot, and explicitly states that no tophi are present. This is common in patients with chronic kidney disease experiencing recurrent gout flares.

• Ensure documentation clearly links the gout to renal impairment and specifies "chronic" rather than acute.
• Verify the affected joint(s) are precisely the right ankle and/or foot.
• Confirm the absence of tophi; if tophi are present, a different code from the M1A.371- series would be appropriate.