ICD-9 Diagnosis Code 747.81

Cerebrovascular anomaly

Diagnosis Code 747.81

ICD-9: 747.81
Short Description: Cerebrovascular anomaly
Long Description: Anomalies of cerebrovascular system
This is the 2014 version of the ICD-9-CM diagnosis code 747.81

Code Classification
  • Congenital anomalies
    • Congenital anomalies (740-759)
      • 747 Other congenital anomalies of circulatory system

Information for Medical Professionals

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Index of Diseases and Injuries
References found for the code 747.81 in the Index of Diseases and Injuries:

Information for Patients


An aneurysm is a bulge or "ballooning" in the wall of an artery. Arteries are blood vessels that carry oxygen-rich blood from the heart to other parts of the body. If an aneurysm grows large, it can burst and cause dangerous bleeding or even death.

Most aneurysms occur in the aorta, the main artery that runs from the heart through the chest and abdomen. Aneurysms also can happen in arteries in the brain, heart and other parts of the body. If an aneurysm in the brain bursts, it causes a stroke.

Aneurysms can develop and become large before causing any symptoms. Often doctors can stop aneurysms from bursting if they find and treat them early. They use imaging tests to find aneurysms. Often aneurysms are found by chance during tests done for other reasons. Medicines and surgery are the two main treatments for aneurysms.

NIH: National Heart, Lung, and Blood Institute

  • Aneurysm
  • Magnetic resonance angiography

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Arteriovenous Malformations

Also called: AVM

Arteriovenous malformations (AVMs) are defects in your vascular system. The vascular system includes arteries, veins, and capillaries. Arteries carry blood away from the heart to other organs; veins carry blood back to the heart. Capillaries connect the arteries and veins. An AVM is a snarled tangle of arteries and veins. They are connected to each other, with no capillaries. That interferes with the blood circulation in an organ.

AVMs can happen anywhere, but they are more common in the brain or spinal cord. Most people with brain or spinal cord AVMs have few, if any, major symptoms. Sometimes they can cause seizures or headaches.

AVMs are rare. The cause is not known, but they seem to develop during pregnancy or soon after birth. Doctors use imaging tests to detect them.

Medicines can help with the symptoms from AVMs. The greatest danger is hemorrhage. Treatment for AVMs can include surgery or focused radiation therapy. Because surgery can be risky, you and your doctor need to make a decision carefully.

NIH: National Institute of Neurological Disorders and Stroke

  • Arteriovenous malformation - cerebral
  • Cerebral angiography
  • Klippel-Trenaunay syndrome
  • Osler-Weber-Rendu syndrome
  • Pulmonary arteriovenous fistula
  • Stereotactic radiosurgery - discharge

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