ICD-10-CM > M00-M99 > M05-M14 > M1A > M1A.0 > M1A.05 > M1A.059 M1A.059 Idiopathic chronic gout, unspecified hip Non-Billable/Non-Specific Codes M1A.0590..., without tophus (tophi)M1A.0591..., with tophus (tophi)