H00.01 Hordeolum externum

Name of the Condition

• Hordeolum externum

Summary

A hordeolum externum is a localized infection or inflammation of the eyelid glands, often presenting as a red, painful lump on the edge of the eyelid. It is more commonly known as a stye and usually affects just one eye.

Causes

Hordeolum externum is typically caused by a bacterial infection, most often Staphylococcus aureus, which infects the oil glands at the base of the eyelashes.

Risk Factors

• Poor eyelid hygiene
• Touching the eyes with unclean hands
• Use of contaminated eye makeup or contact lenses
• History of blepharitis (inflammation of the eyelids)
• Having seborrheic dermatitis or rosacea

Symptoms

• Red, swollen bump along the edge of the eyelid
• Pain or tenderness in the affected area
• Increased tearing
• Crustiness around the eyelid
• Sensitivity to light

Diagnosis

A physical examination by an eye care professional is usually sufficient to diagnose a stye. Additional tests are rarely needed unless recurrent styes suggest an underlying condition.

Treatment Options

• Warm compresses applied to the eyelid several times a day to promote drainage.
• Over-the-counter pain relievers for discomfort.
• Antibiotic ointments or drops if a secondary bacterial infection is present.
• Rarely, minor surgical intervention to drain.

Prognosis and Follow-Up

Most hordeola externa resolve on their own within a week or two with proper care. Follow-up may be recommended if symptoms worsen or persist beyond two weeks, indicating a possible need for further intervention.

Complications

• Spread of infection to surrounding tissues
• Recurrence of styes
• Rarely, cellulitis or abscess formation

Lifestyle & Prevention

• Maintain good eyelid hygiene by gently cleaning the eyelid margins with a warm, damp cloth.
• Avoid touching or rubbing the eyes with unwashed hands.
• Replace eye makeup and contact lenses as recommended to prevent contamination.
• Manage underlying conditions like blepharitis or rosacea to reduce recurrence.

When to Seek Professional Help

Seek medical attention if the stye does not improve after home treatment, causes significant pain, affects vision, or is accompanied by fever or swelling around the eye.

Tips for Medical Coders

Document the location and laterality (if applicable) of the hordeolum externum. Ensure the diagnosis is clearly differentiated from other eyelid conditions, such as chalazion or blepharitis, to support accurate coding.