M24.64

Non-billable

Ankylosis, hand

M24.64 is the ICD-10-CM code for Ankylosis, hand. It is a non-billable category code — use a more specific child code such as M24.641 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M24.6
Subcodes
3
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

What this means — in plain language

MedlinePlus · NIH

No matter how old you are or what you do for a living, you are always using your hands. When there is something wrong with them, you may not be able to do your regular activities. Hand problems include : Carpal tunnel syndrome - compression of a nerve as it goes through the wrist, often making your fingers feel numb Injuries that result in fractures (broken bones), ruptured ligaments and dislocations Osteoarthritis…

Read more about Hand Injuries and Disorders at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code M24.64?
M24.64 is the ICD-10-CM code for "Ankylosis, hand". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M24.64 a billable code?
No — M24.64 is a non-billable header code. Use a more specific child code (such as M24.641) for billing.
What are the subcodes of M24.64?
M24.64 has 3 more specific child codes, including M24.641, M24.642, M24.649.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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