M24.639 Ankylosis, unspecified wrist

Billable ICD-10-CM code, FY2026.

Applies from M24 Other specific joint derangements

Excludes1 (never code together)

• current injury - see injury of joint by body region

Excludes2 (not included here)

• ganglion (M67.4)
• snapping knee (M23.8-)
• temporomandibular joint disorders (M26.6-)

Applies from M24.6 Ankylosis of joint

Excludes1 (never code together)

• stiffness of joint without ankylosis (M25.6-)

Excludes2 (not included here)

• spine (M43.2-)

MS-DRG index

Defines the logic of DRG(s) 553-554 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 718.53 Ankylosis of joint, forearm (approximate)

Code annotations containing back-references to M24.639

Back-references to M24.6

• Type 1 Excludes: M25.6 Stiffness of joint, not elsewhere classified ("ankylosis of joint (M24.6-)")

Nearby codes

• M24.622 Ankylosis, left elbow
• M24.629 Ankylosis, unspecified elbow
• M24.63 Ankylosis, wrist
• M24.631 Ankylosis, right wrist
• M24.632 Ankylosis, left wrist
• M24.639 Ankylosis, unspecified wrist (this code)
• M24.64 Ankylosis, hand
• M24.641 Ankylosis, right hand
• M24.642 Ankylosis, left hand
• M24.649 Ankylosis, unspecified hand
• M24.65 Ankylosis, hip