M31.4

Billable

Aortic arch syndrome [Takayasu]

M31.4 is the ICD-10-CM code for Aortic arch syndrome [Takayasu]. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
M00-M99
Parent
M31
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

What this means — in plain language

MedlinePlus · NIH

Vasculitis is an inflammation of the blood vessels. It happens when the body's immune system attacks the blood vessel by mistake. It can happen because of an infection, a medicine, or another disease. The cause is often unknown. Vasculitis can affect arteries, veins and capillaries. Arteries are vessels that carry blood from the heart to the body's organs. Veins are the vessels that carry blood back to the heart.…

Read more about Vasculitis at MedlinePlus ↗

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

No additional coding notes for this code.

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Conditions mapped to this code

MedlinePlus · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code M31.4?
M31.4 is the ICD-10-CM code for "Aortic arch syndrome [Takayasu]". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M31.4 a billable code?
Yes — M31.4 is a billable, specific ICD-10-CM code valid for reimbursement.

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

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