ICD-10-CM > M00-M99 > M05-M14 > M1A > M1A.4 > M1A.44 > M1A.442 M1A.442 Other secondary chronic gout, left hand Non-Billable/Non-Specific Codes M1A.4420..., without tophus (tophi)M1A.4421..., with tophus (tophi)