H11.023 Central pterygium of eye, bilateral

Name of the Condition

• Central pterygium of eye, bilateral

Summary

Central pterygium of the eye, bilateral, is a benign, fleshy growth of conjunctival tissue that extends onto the cornea, specifically located in the central region of both eyes. This growth may cause irritation or visual impairment if it progresses onto the corneal surface.

Causes

The exact cause is not fully understood, but prolonged exposure to ultraviolet (UV) light, dry eye conditions, and chronic environmental irritation (such as wind or dust) are associated with its development.

Risk Factors

• Increased UV exposure from sunlight or outdoor activities.
• Living in sunny or windy climates.
• Age, with higher incidence in adults.
• Family history of pterygium.
• Exposure to dust, smoke, or other irritants.

Symptoms

• Eye redness or irritation.
• Foreign body sensation.
• Blurred vision if the growth encroaches on the cornea.
• Visible tissue growth on the conjunctiva or cornea.

Diagnosis

Diagnosis is made through a clinical examination by an eye care professional, typically using a slit-lamp microscope to assess the growth’s location, size, and impact on the cornea. The central position and bilateral involvement are noted during evaluation.

Treatment Options

• Observation: Regular monitoring for mild cases without symptoms.
• Lubricating Eye Drops: To relieve irritation and redness.
• Surgery: Pterygium removal may be recommended if vision is affected or for cosmetic reasons.

Prognosis and Follow-Up

Prognosis is generally good, especially with early intervention. Regular follow-up is recommended to monitor for recurrence or progression, particularly if surgery is performed.

Complications

• Recurrence after surgical removal.
• Corneal scarring or astigmatism if the growth advances significantly.
• Persistent irritation or discomfort.

Lifestyle & Prevention

• Wear UV-protective sunglasses outdoors.
• Use lubricating eye drops to manage dryness.
• Avoid prolonged exposure to wind, dust, or smoke.
• Maintain good eye hygiene and regular eye examinations.

When to Seek Professional Help

Seek care if symptoms worsen, vision changes, or if the growth becomes painful or rapidly enlarges.

Tips for Medical Coders

Document the bilateral nature and central location of the pterygium. Ensure clinical notes specify both eyes are affected and the growth is centrally positioned on the cornea. Code H11.023 is specific to bilateral central pterygium; verify laterality and location details in the medical record.