ICD-10-CM > M00-M99 > M05-M14 > M1A > M1A.3 > M1A.37 M1A.37 Chronic gout due to renal impairment, ankle and foot Non-Billable/Non-Specific Codes M1A.371Chronic gout due to renal impairment, right ankle and footM1A.3710..., without tophus (tophi)M1A.3711..., with tophus (tophi)M1A.372Chronic gout due to renal impairment, left ankle and footM1A.3720..., without tophus (tophi)M1A.3721..., with tophus (tophi)M1A.379Chronic gout due to renal impairment, unspecified ankle and footM1A.3790..., without tophus (tophi)M1A.3791..., with tophus (tophi)