S15.122 Major laceration of left vertebral artery

Name of the Condition

• Major laceration of left vertebral artery

Summary

A major laceration of the left vertebral artery involves a significant tear or cut in the left vertebral artery, a blood vessel that supplies blood to the brainstem and cerebellum. This condition may result from trauma or iatrogenic causes and requires prompt evaluation to address potential complications such as hemorrhage, ischemia, or neurological deficits.

Causes

Traumatic events, including motor vehicle collisions, falls, or penetrating injuries to the neck, are common causes. Blunt force trauma or hyperextension of the neck may also damage the vertebral artery. Iatrogenic injuries during surgical or interventional procedures, such as cervical spine surgery or angiography, can occur.

Risk Factors

• High-velocity trauma or significant force to the cervical spine.
• Penetrating injuries involving the neck region.
• Preexisting vascular conditions (e.g., atherosclerosis) that weaken vessel walls.
• Advanced age or comorbidities affecting tissue integrity.

Symptoms

• Severe neck pain or tenderness at the injury site.
• Significant swelling, hematoma, or ecchymosis in the cervical region.
• Neurological symptoms like dizziness, vertigo, or ataxia, indicating potential brainstem or cerebellar ischemia.
• Signs of hemorrhage, including rapid pulse, low blood pressure, or shock.
• Possible stroke-like symptoms.

Diagnosis

Diagnosis typically involves a thorough clinical evaluation, including assessment of symptoms and mechanism of injury. Imaging studies, such as computed tomography angiography (CTA) or magnetic resonance angiography (MRA), are often used to visualize the vertebral artery and confirm the laceration. Additional tests may include neurological examinations to assess for deficits.

Treatment Options

Treatment depends on the severity of the laceration and associated complications. Minor injuries may be managed conservatively with observation and monitoring. Severe cases may require surgical repair, endovascular intervention (e.g., stenting or embolization), or blood pressure control to reduce bleeding risk. Neurological support and monitoring for complications are essential.

Prognosis and Follow-Up

Prognosis varies based on the extent of the injury and timely intervention. Early treatment can reduce the risk of long-term neurological damage. Follow-up care often includes repeat imaging to assess vessel healing and ongoing neurological evaluations to monitor for delayed complications.

Complications

Potential complications include hemorrhage, ischemic stroke, neurological deficits (e.g., weakness, sensory loss), or pseudoaneurysm formation. In severe cases, permanent brainstem or cerebellar damage may occur.

Lifestyle & Prevention

Preventive measures include using seat belts, avoiding high-risk activities, and ensuring proper technique during cervical spine procedures. For individuals with preexisting vascular conditions, managing risk factors (e.g., hypertension, smoking) may reduce injury susceptibility.

When to Seek Professional Help

Seek immediate medical attention if neck trauma is accompanied by severe pain, swelling, neurological symptoms (e.g., dizziness, weakness), or signs of shock. Prompt evaluation is critical to prevent life-threatening complications.

Tips for Medical Coders

Document the laterality (left) and the nature of the injury (major laceration) clearly. Ensure the mechanism of injury (e.g., trauma, iatrogenic) and any associated complications are recorded to support code assignment. Verify that the injury is not better described by another code and that documentation aligns with the specificity of S15.122.