M89.331 Hypertrophy of bone, right ulna

Billable ICD-10-CM code, FY2026.

MS-DRG index

Defines the logic of DRG(s) 564-566 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 733.99 Other disorders of bone and cartilage (approximate)

Nearby codes

• M89.32 Hypertrophy of bone, humerus
• M89.321 Hypertrophy of bone, right humerus
• M89.322 Hypertrophy of bone, left humerus
• M89.329 Hypertrophy of bone, unspecified humerus
• M89.33 Hypertrophy of bone, ulna and radius
• M89.331 Hypertrophy of bone, right ulna (this code)
• M89.332 Hypertrophy of bone, left ulna
• M89.333 Hypertrophy of bone, right radius
• M89.334 Hypertrophy of bone, left radius
• M89.339 Hypertrophy of bone, unspecified ulna and radius
• M89.34 Hypertrophy of bone, hand