ICD-10-CM > M00-M99 > M86-M90 > M89 > M89.3 > M89.34 M89.34 Hypertrophy of bone, hand Non-Billable/Non-Specific Codes M89.341Hypertrophy of bone, right handM89.342Hypertrophy of bone, left handM89.349Hypertrophy of bone, unspecified hand