Oth secondary chronic gout, left ankle and foot, w/o tophus

This code signifies a chronic form of gout that is secondary to another underlying condition, affecting the left ankle and foot. It indicates the absence of tophaceous deposits, which are characteristic urate crystal aggregations. The chronicity implies persistent or recurrent inflammation and pain in the specified joint.

Use this code for patients diagnosed with chronic gout in the left ankle and foot, where the gout is a consequence of another medical condition (e.g., renal insufficiency, certain medications). Documentation should clearly state "secondary gout," "chronic," and specify the left ankle and/or foot involvement, along with the absence of tophi.

• Ensure documentation explicitly states "secondary" gout and identifies the underlying cause.
• Verify the laterality (left) and specific joint involvement (ankle and foot).
• Confirm the absence of tophi; if tophi are present, a different code in the M1A.47x series would be appropriate.