L02.521 Furuncle right hand

Name of the Condition

• Furuncle right hand

Summary

A furuncle of the right hand is a localized, painful infection involving a single hair follicle and surrounding tissue. It presents as a red, swollen, and tender nodule that may develop a pus-filled center. This condition is a type of cutaneous abscess and typically results from bacterial invasion, most commonly Staphylococcus aureus.

Causes

The primary cause is a bacterial infection, usually Staphylococcus aureus. Infections may occur due to breaks in the skin, such as cuts, insect bites, or blocked hair follicles, allowing bacteria to enter and multiply. The furuncle forms when the infection is confined to a single follicle.

Risk Factors

• Compromised immune system (e.g., diabetes, HIV)
• Previous skin infections or trauma to the hand
• Frequent direct contact with contaminated objects or surfaces
• Poor hygiene or unsterilized medical procedures
• Age (children and older adults may be at higher risk)

Symptoms

• Red, swollen, and painful lump on the right hand
• Warmth around the affected area
• Pus-filled center (may drain spontaneously)
• Fever or chills (in severe cases)
• Swollen lymph nodes near the affected area

Diagnosis

Diagnosis is typically made through a physical examination of the affected area. A healthcare provider may assess the lesion's appearance, tenderness, and surrounding tissue. In some cases, a culture of the pus may be performed to identify the causative bacteria, especially if the infection is recurrent or severe.

Treatment Options

• Incision and drainage to remove pus and relieve pressure
• Antibiotic therapy, particularly if the infection is spreading or if the patient has risk factors for complications
• Warm compresses to promote drainage and reduce pain
• Pain management with over-the-counter or prescription medications

Prognosis and Follow-Up

With appropriate treatment, most furuncles resolve within 1–2 weeks. Follow-up may be recommended to ensure complete healing and to monitor for recurrence. Patients should be advised to avoid squeezing or picking at the lesion to prevent worsening or spread of infection.

Complications

• Spread of infection to deeper tissues or surrounding areas
• Cellulitis or lymphangitis
• Scarring at the site of the furuncle
• Rarely, systemic infection (e.g., sepsis) in severe cases

Lifestyle & Prevention

• Maintain good hand hygiene to reduce bacterial exposure
• Clean and cover any cuts or wounds promptly
• Avoid sharing personal items (e.g., towels, razors) that may harbor bacteria
• Practice proper wound care to prevent infection

When to Seek Professional Help

Seek medical attention if the furuncle is large, painful, or does not improve with home care, or if symptoms worsen (e.g., increased redness, fever, or swelling). Prompt evaluation is also recommended for recurrent infections or if the patient has a compromised immune system.

Tips for Medical Coders

When coding for a furuncle of the right hand, use ICD-10-CM code L02.521. Ensure documentation specifies the location (right hand) and confirms the diagnosis as a furuncle (not a carbuncle or other abscess type). Include details about the lesion's characteristics (e.g., presence of pus, size) to support accurate coding.