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Moyamoya Disease 7 C5882748

Published: July 22, 2026Updated: August 26, 2026

A genetic subtype of Moyamoya disease where arteries in the brain progressively narrow and restrict blood flow. It may cause headaches, seizures, or strokes. Treatment involves medications and possibly surgical procedures.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 26, 2026Editorial policy

Key facts at a glance

ICD-10
G40.909
ICD-11
8A00.0
Body system
neurologic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

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Ischemic stroke

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Hemiparesis

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Intracranial hemorrhage

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Cognitive decline

(neurologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Combined Bypass Procedure

Hybrid approach using both direct and indirect revascularization techniques simultaneously for optimal blood flow restoration.

surgical
2

Evidence-based pharmacological treatment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Anticoagulation Therapy

Selected use of anticoagulant medications in certain Moyamoya presentations to prevent thrombus formation in compromised vessels.

medication

Additional treatment options

Vestibular Rehabilitation

Specialized balance and vestibular therapy addressing dizziness and coordination difficulties common in posterior circulation involvement.

physical_therapy

EEG Monitoring

Electroencephalogram monitoring to detect seizures and subclinical ischemia, particularly important in pediatric Moyamoya disease.

monitoring

Activity Modification and Exercise Guidelines

Structured guidance on appropriate physical activities avoiding high-impact sports and activities that may precipitate ischemic events.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Moyamoya Disease 7 C5882748?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Moyamoya Disease 7 C5882748. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 26, 2026. · Read our editorial policy