L02.225 Furuncle of perineum

Name of the Condition

• Furuncle of perineum
• Also known as a boil or abscess of the perineum

Summary

A furuncle, commonly referred to as a boil, is a painful, pus-filled bump that forms under the skin due to a bacterial infection usually involving a hair follicle. When occurring on the perineum, it is termed a "Furuncle of perineum."

Causes

Typically caused by the bacterium Staphylococcus aureus. Can develop due to bacteria entering the hair follicle through cuts, scrapes, or other breaks in the skin.

Risk Factors

• Poor hygiene
• Close contact with others who have boils
• Compromised immune system
• Diabetes
• Wearing tight or non-breathable clothing that irritates the skin
• Moisture in the perineal area, which may promote bacterial growth

Symptoms

• Reddish, swollen bump on the perineum
• Pain and tenderness in the affected area
• Pus or drainage from the boil
• Itching before the boil forms

Diagnosis

Mainly through physical examination. Swab of the pus to identify the specific bacteria, if recurring infections occur. Imaging (e.g., ultrasound) may be used if deep tissue involvement is suspected.

Treatment Options

• Warm compresses to help the boil open and drain naturally
• Incision and drainage performed by a healthcare professional in severe cases
• Antibiotics if there is a concern of a spreading infection

Prognosis and Follow-Up

With proper treatment, furuncles typically resolve without complications. Recurrences can be minimized by addressing underlying risk factors. Follow-up may be recommended if infections are recurrent or severe.

Complications

• Spread of infection to surrounding tissues (cellulitis)
• Formation of a carbuncle (cluster of boils)
• Systemic infection (rare, but more likely in immunocompromised individuals)

Lifestyle & Prevention

• Maintain good hygiene, especially in the perineal area
• Keep the skin clean and dry
• Avoid tight or non-breathable clothing that traps moisture
• Promptly treat minor skin injuries to prevent bacterial entry

When to Seek Professional Help

• If the boil is large, painful, or does not improve with home care
• If there is fever, red streaks from the boil, or signs of spreading infection
• If the boil recurs frequently or is accompanied by other symptoms (e.g., fatigue, chills)

Tips for Medical Coders

Document the location (perineum) and any associated details, such as whether the furuncle required incision and drainage or if there were signs of systemic infection. Ensure the code L02.225 is used when the furuncle is specifically located on the perineum.