ICD-10-CM > M00-M99 > M05-M14 > M1A > M1A.1 > M1A.16 M1A.16 Lead-induced chronic gout, knee Non-Billable/Non-Specific Codes M1A.161Lead-induced chronic gout, right kneeM1A.1610..., without tophus (tophi)M1A.1611..., with tophus (tophi)M1A.162Lead-induced chronic gout, left kneeM1A.1620..., without tophus (tophi)M1A.1621..., with tophus (tophi)M1A.169Lead-induced chronic gout, unspecified kneeM1A.1690..., without tophus (tophi)M1A.1691..., with tophus (tophi)