M21.8
Non-billableOther specified acquired deformities of limbs
M21.8 is the ICD-10-CM code for Other specified acquired deformities of limbs. It is a non-billable category code — use a more specific child code such as M21.80 for billing.
M00-M99 Diseases of the musculoskeletal system and connective tissue
What this means — in plain language
MedlinePlus · NIHOf the 206 bones in your body, three of them are in your arm: the humerus, radius, and ulna. Your arms are also made up of muscles, joints, tendons, and other connective tissue. Injuries to any of these parts of the arm can occur during sports, a fall, or an accident. Types of arm injuries include : Tendinitis and bursitis Sprains Dislocations Fractures (broken bones) Nerve problems Osteoarthritis You may also have…
Read more about Arm Injuries and Disorders at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes2 — not included here
- •coxa plana (M91.2)
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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