I67.5

I67.5: Moyamoya disease

Billable / specific codeICD-10-CM

I67.5 is a billable, specific ICD-10-CM code for moyamoya disease. It is valid for submission on a claim.

Check I67.5 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above I67.5

A category’s note binds every code beneath it.

Written on I67: Other cerebrovascular diseases

Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5-)
Occlusion and stenosis of precerebral artery causing cerebral infarction (I63.2-)

Excludes2 inherited from the categories above I67.5

Not part of this code, but both may be coded when both are present.

Written on I67: Other cerebrovascular diseases

sequelae of the listed conditions (I69.8)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

I67.5 is named in 13 Medicare coverage policies: 13 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56551Billing and Coding: Visual Fields Testing
A56612Billing and Coding: CT of the Head
A56631Billing and Coding: Thoracic Aortography and Carotid, Vertebral, and Subclavian Angiography
A56722Billing and Coding: Intraoperative Neurophysiological Testing

Alphabetic index entries that lead here

Encephaloduroarteriomyosynangiosis(EDAMS)
Moyamoya disease
Nishimoto disease(-Takeuchi)
Disease, diseased›moyamoya
Disease, diseased›Nishimoto(-Takeuchi)

Code history

Unchanged in every release from FY2024 to FY2027.