L02.421 Furuncle of right axilla

Name of the Condition

• Furuncle of Right Axilla (ICD-10 L02.421)

Summary

A furuncle of the right axilla is a localized skin infection in the armpit area that forms a pus-filled pocket beneath the skin. It typically causes pain, swelling, and redness and may require medical intervention to resolve.

Causes

Bacterial infection, most commonly Staphylococcus aureus. Blocked hair follicles or sweat glands. Skin breaks or injuries that allow bacteria to enter.

Risk Factors

• Poor hygiene practices.
• Compromised immune system.
• Diabetes or chronic health conditions.
• Use of antibiotics or steroids that disrupt skin flora.
• History of skin infections.

Symptoms

• Pain and tenderness in the right armpit.
• Swelling and redness of the skin.
• Warmth around the infected area.
• Appearance of a lump or boil that may drain pus.

Diagnosis

Physical examination of the right axilla. Bacterial cultures from pus to identify the organism. Ultrasound may be used to assess the abscess extent.

Treatment Options

• Incision and drainage: Primary treatment to remove pus and relieve pain.
• Antibiotics: Prescribed to treat or prevent further infection.
• Warm compresses: Help reduce swelling and promote drainage.

Prognosis and Follow-Up

Generally favorable if treated promptly. Follow-up may be needed to ensure complete healing and monitor for recurrence.

Complications

• Spread of infection to surrounding tissue.
• Formation of a carbuncle (cluster of furuncles).
• Systemic infection if left untreated.

Lifestyle & Prevention

• Maintain good hygiene, especially in the armpit area.
• Avoid sharing personal items like towels or razors.
• Keep skin clean and dry to prevent follicle blockage.
• Promptly treat minor skin injuries to prevent infection.

When to Seek Professional Help

Seek medical attention if the furuncle is large, painful, or does not improve with home care. Also, consult a healthcare provider if there are signs of spreading redness, fever, or systemic symptoms.

Tips for Medical Coders

Document the specific location (right axilla) and confirm the diagnosis of a furuncle. Ensure clinical notes support the infection type and site to justify code assignment.