ICD-10-CM > M00-M99 > M05-M14 > M1A > M1A.4 > M1A.45 > M1A.451 M1A.451 Other secondary chronic gout, right hip Non-Billable/Non-Specific Codes M1A.4510..., without tophus (tophi)M1A.4511..., with tophus (tophi)