I63.01 Cerebral infarction due to thrombosis of vertebral artery

Name of the Condition

• Cerebral infarction due to thrombosis of vertebral artery

Summary

This condition occurs when a blood clot (thrombosis) blocks the vertebral artery, leading to a stroke. The blockage prevents blood from reaching parts of the brain, causing brain tissue damage or death.

Causes

Atherosclerosis (buildup of plaques in arteries) is a common cause. Blood clotting disorders, heart disease, and injury to the artery can also lead to thrombosis.

Risk Factors

• Advanced age
• High blood pressure
• High cholesterol
• Smoking
• Diabetes
• Obesity
• Sedentary lifestyle
• Family history of stroke or cardiovascular disease

Symptoms

• Sudden weakness or numbness in the face, arm, or leg, particularly on one side of the body
• Difficulty speaking or understanding speech
• Sudden vision problems in one or both eyes
• Loss of balance or coordination
• Sudden severe headache with no known cause

Diagnosis

CT scan or MRI of the brain to identify areas affected by stroke. Doppler ultrasound or angiography to view blood flow in the vertebral artery. Blood tests to assess clotting tendency and other stroke risk factors.

Treatment Options

• Antiplatelet or anticoagulant medications to prevent further clotting
• Thrombolytic therapy to dissolve clots (usually administered within hours of stroke onset)
• Surgical or endovascular procedures to remove or bypass blockages

Prognosis and Follow-Up

Prognosis depends on the extent of brain damage and timely treatment. Recovery may involve rehabilitation, medication management, and lifestyle changes. Regular follow-up with a healthcare provider is essential to monitor for recurrence.

Complications

• Permanent neurological deficits (e.g., paralysis, speech difficulties)
• Increased risk of future strokes
• Cognitive impairment
• Emotional or behavioral changes

Lifestyle & Prevention

• Manage blood pressure, cholesterol, and diabetes
• Quit smoking and limit alcohol intake
• Maintain a healthy diet and regular exercise
• Avoid prolonged immobility

When to Seek Professional Help

Seek immediate medical attention if you experience sudden numbness, weakness, speech difficulties, vision problems, or severe headache. Early treatment can reduce brain damage.

Tips for Medical Coders

Document the specific artery involved (vertebral artery) and confirm thrombosis as the cause. Ensure clinical documentation supports the diagnosis to justify code assignment.