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ICD-Code I66.3: Occlusion and stenosis of cerebellar arteries

Arteries in your brain have narrowed or got blocked.

Arteries are blood vessels that transport blood away from the heart. They supply all the tissue in the body with oxygen-rich blood.

The cerebellum and the brain stem are parts of the brain. The cerebellum is important for movement and balance. The cerebellum stores movement processes, for example, how one eats with cutlery or rides a bike. The brain stem is where breathing and heart rate are regulated. Various arteries supply blood to the cerebellum and the brain stem. One or more of these arteries to your brain have narrowed or become blocked.

There are various reasons for an artery getting blocked. The artery can be narrowed by deposits of calcium and fats in the blood vessel wall. Then not enough blood can flow through. Or the artery can be blocked by a blood clot. Blood clots occur when components of the blood clump together. The blood clot can form in the heart or somewhere else in the body. The blood clot can then be swept towards the brain along with the blood.

Various risk factors can favor the blocking of an artery. These include, for example, smoking, obesity, and high blood pressure.

When an artery gets blocked or narrows, it can cause various problems. There may also be no symptoms at all, however.

Additional indicator

On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body.

  • G: Confirmed diagnosis
  • V: Tentative diagnosis
  • Z: Condition after
  • A: Excluded diagnosis
  • L: Left
  • R: Right
  • B: Both sides

Further information

Note

This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.
Your doctor will assist you with any health-related questions and explain the ICD diagnosis code to you in a direct consultation if necessary.

Source

Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).