ICD-10-CM > M00-M99 > M05-M14 > M1A > M1A.3 > M1A.37 > M1A.371 M1A.371 Chronic gout due to renal impairment, right ankle and foot Non-Billable/Non-Specific Codes M1A.3710..., without tophus (tophi)M1A.3711..., with tophus (tophi)