ICD-10-CM > M00-M99 > M86-M90 > M89 > M89.3 > M89.32 M89.32 Hypertrophy of bone, humerus Non-Billable/Non-Specific Codes M89.321Hypertrophy of bone, right humerusM89.322Hypertrophy of bone, left humerusM89.329Hypertrophy of bone, unspecified humerus