ICD-10-CM > M00-M99 > M86-M90 > M89 > M89.3 > M89.31 M89.31 Hypertrophy of bone, shoulder Non-Billable/Non-Specific Codes M89.311Hypertrophy of bone, right shoulderM89.312Hypertrophy of bone, left shoulderM89.319Hypertrophy of bone, unspecified shoulder