ICD-9 Diagnosis Code 437.5

Moyamoya disease

Diagnosis Code 437.5

ICD-9: 437.5
Short Description: Moyamoya disease
Long Description: Moyamoya disease
This is the 2014 version of the ICD-9-CM diagnosis code 437.5

Code Classification
  • Diseases of the circulatory system
    • Cerebrovascular disease (430-438)
      • 437 Other and ill-defined cerebrovascular disease

Information for Patients

Genetic Brain Disorders

Also called: Inborn genetic brain disorders

A genetic brain disorder is caused by a variation or a mutation in a gene. A variation is a different form of a gene. A mutation is a change in a gene. Genetic brain disorders affect the development and function of the brain.

Some genetic brain disorders are due to random gene mutations or mutations caused by environmental exposure, such as cigarette smoke. Other disorders are inherited, which means that a mutated gene or group of genes is passed down through a family. They can also be due to a combination of both genetic changes and other outside factors.

Some examples of genetic brain disorders include

  • Leukodystrophies
  • Phenylketonuria
  • Tay-Sachs disease
  • Wilson disease

Many people with genetic brain disorders fail to produce enough of certain proteins that influence brain development and function. These brain disorders can cause serious problems that affect the nervous system. Some have treatments to control symptoms. Some are life-threatening.

  • Lesch-Nyhan syndrome
  • Maple syrup urine disease
  • Menkes syndrome
  • Neuronal ceroid lipofuscinoses (NCLS)
  • Niemann-Pick disease

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Vascular Diseases

The vascular system is the body's network of blood vessels. It includes the arteries, veins and capillaries that carry blood to and from the heart. Problems of the vascular system are common and can be serious. Arteries can become thick and stiff, a problem called atherosclerosis. Blood clots can clog vessels and block blood flow to the heart or brain. Weakened blood vessels can burst, causing bleeding inside the body.

You are more likely to have vascular disease as you get older. Other factors that make vascular disease more likely include

  • Family history of vascular or heart diseases
  • Pregnancy
  • Illness or injury
  • Long periods of sitting or standing still
  • Any condition that affects the heart and blood vessels, such as diabetes or high cholesterol
  • Smoking
  • Obesity

Losing weight, eating healthy foods, being active and not smoking can help vascular disease. Other treatments include medicines and surgery.

  • Aortic arch syndrome
  • Arterial embolism
  • Arteriogram
  • Cerebral angiography
  • Distal splenorenal shunt
  • Duplex ultrasound
  • Hereditary angioedema
  • Magnetic resonance angiography
  • Mesenteric angiography
  • Mesenteric artery ischemia
  • SVC obstruction
  • Venous insufficiency
  • Venous ulcers -- self-care
  • Volkmann ischemic contracture

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