ICD-10-CM > M00-M99 > M05-M14 > M1A > M1A.4 > M1A.47 M1A.47 Other secondary chronic gout, ankle and foot Non-Billable/Non-Specific Codes M1A.471Other secondary chronic gout, right ankle and footM1A.4710..., without tophus (tophi)M1A.4711..., with tophus (tophi)M1A.472Other secondary chronic gout, left ankle and footM1A.4720..., without tophus (tophi)M1A.4721..., with tophus (tophi)M1A.479Other secondary chronic gout, unspecified ankle and footM1A.4790..., without tophus (tophi)M1A.4791..., with tophus (tophi)