ICD-10-CM > M00-M99 > M05-M14 > M1A > M1A.1 > M1A.16 > M1A.161 M1A.161 Lead-induced chronic gout, right knee Non-Billable/Non-Specific Codes M1A.1610..., without tophus (tophi)M1A.1611..., with tophus (tophi)