ICD-10-CM > M00-M99 > M05-M14 > M1A > M1A.1 > M1A.16 > M1A.162 M1A.162 Lead-induced chronic gout, left knee Non-Billable/Non-Specific Codes M1A.1620..., without tophus (tophi)M1A.1621..., with tophus (tophi)