ICD-10-CM > M00-M99 > M05-M14 > M1A > M1A.2 > M1A.28 M1A.28 Drug-induced chronic gout, vertebrae Non-Billable/Non-Specific Codes M1A.28X0..., without tophus (tophi)M1A.28X1..., with tophus (tophi)