ICD-10-CM > M00-M99 > M05-M14 > M1A > M1A.0 > M1A.01 > M1A.019 M1A.019 Idiopathic chronic gout, unspecified shoulder Non-Billable/Non-Specific Codes M1A.0190..., without tophus (tophi)M1A.0191..., with tophus (tophi)