H00.02 Hordeolum internum

Name of the Condition

Hordeolum internum

Summary

Hordeolum internum is an acute bacterial infection of the meibomian glands within the eyelid. It presents as a painful, localized swelling, often with pus accumulation, and is commonly referred to as an internal stye. The condition typically resolves spontaneously but may require medical intervention if symptoms persist or worsen.

Causes

The primary cause is bacterial infection, most commonly by Staphylococcus aureus, which invades the oil-producing glands of the eyelid. Blockage of these glands can predispose to infection and subsequent inflammation.

Risk Factors

• Poor eyelid hygiene
• Touching the eyes with unclean hands
• Use of expired or contaminated eye cosmetics
• Chronic blepharitis (eyelid inflammation)
• Underlying skin conditions such as rosacea or seborrheic dermatitis

Symptoms

• Tender, red swelling on the eyelid
• Pain or discomfort in the affected area
• Increased tear production
• Sensitivity to light
• A sensation of a foreign body in the eye

Diagnosis

Diagnosis is typically made through a physical examination by a healthcare professional, who evaluates the location and characteristics of the eyelid swelling. Additional tests are rarely necessary unless recurrent infections suggest an underlying condition.

Treatment Options

• Warm compresses applied several times daily to promote drainage
• Over-the-counter pain relievers for discomfort
• Antibiotic ointments or drops if a secondary infection is present
• Rarely, minor surgical drainage if the lesion does not resolve

Prognosis and Follow-Up

Most hordeola internum resolve within 1–2 weeks with minimal intervention. Follow-up may be recommended if symptoms persist, worsen, or recur, to rule out underlying conditions such as blepharitis or meibomian gland dysfunction.

Complications

• Spread of infection to surrounding tissues
• Formation of a chalazion (chronic inflammation)
• Rarely, cellulitis or preseptal cellulitis

Lifestyle & Prevention

• Maintain good eyelid hygiene by gently cleaning the eyelids with a warm, damp cloth
• Avoid touching the eyes with unwashed hands
• Replace eye cosmetics regularly and avoid sharing them
• Manage underlying conditions like blepharitis or rosacea as directed by a healthcare provider

When to Seek Professional Help

Seek medical attention if the swelling worsens, does not improve after a week, causes vision changes, or is accompanied by fever or severe pain. Recurrent infections may also warrant evaluation for underlying causes.

Tips for Medical Coders

Code H00.02 is used for hordeolum internum. Documentation should specify the location (e.g., upper or lower eyelid) and laterality (e.g., right, left, bilateral) when applicable. Ensure the diagnosis aligns with clinical findings and avoid coding for external styes (hordeolum externum) under this code.