I67.5

Billable

Moyamoya disease

I67.5 is the ICD-10-CM code for Moyamoya disease. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
I00-I99
Parent
I67
Edition
FY2026

I00-I99 Diseases of the circulatory system

What this means — in plain language

MedlinePlus · NIH

Most brain malformations begin long before a baby is born. Something damages the developing nervous system or causes it to develop abnormally. Sometimes it's a genetic problem. In other cases, exposure to certain medicines , infections , or radiation during pregnancy interferes with brain development. Parts of the brain may be missing, abnormally small or large, or not fully developed. Treatment depends upon the…

Read more about Brain Malformations 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 I67.5?
I67.5 is the ICD-10-CM code for "Moyamoya disease". It falls under I00-I99 Diseases of the circulatory system.
Is I67.5 a billable code?
Yes — I67.5 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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