L02.621 Furuncle of right foot

Name of the Condition

• Furuncle of Right Foot

Summary

A furuncle of the right foot is a localized, pus-filled infection of a single hair follicle and surrounding tissue, typically caused by bacteria. It presents as a tender, red, swollen nodule that may develop a central pustule. This condition can cause discomfort and, if untreated, may progress to more severe infections or complications.

Causes

The primary cause is a bacterial infection, most commonly Staphylococcus aureus. Infections often arise from breaks in the skin, such as cuts, abrasions, or blocked hair follicles, allowing bacteria to enter and multiply. The inflammatory response leads to pus accumulation within the affected follicle.

Risk Factors

• Poor personal hygiene
• Compromised immune system (e.g., diabetes, HIV)
• Skin conditions (e.g., athlete’s foot, eczema)
• Recent foot trauma or surgery
• Close contact with infected individuals

Symptoms

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

Diagnosis

Diagnosis is typically made through a physical examination by a healthcare provider, who assesses the lesion’s appearance, location, and associated symptoms. In some cases, a sample of the pus may be collected for culture to identify the causative organism and guide treatment.

Treatment Options

• Warm compresses to promote drainage
• Topical or oral antibiotics (e.g., mupirocin, dicloxacillin)
• Incision and drainage for larger or persistent lesions
• Pain management with over-the-counter analgesics

Prognosis and Follow-Up

With appropriate treatment, most furuncles resolve within 1–2 weeks. Follow-up may be recommended to ensure complete healing and monitor for recurrence. Severe or recurrent cases may require further evaluation to address underlying risk factors.

Complications

• Cellulitis (spreading infection of the skin)
• Abscess formation
• Septicemia (rare, in severe cases)
• Scarring or hyperpigmentation at the site

Lifestyle & Prevention

• Maintain good foot hygiene, including regular washing and drying
• Wear clean, well-fitting footwear
• Avoid sharing personal items (e.g., towels, shoes)
• Treat skin conditions promptly to reduce infection risk
• Protect feet from injuries and irritants

When to Seek Professional Help

Seek medical attention if the furuncle is large, worsening, or accompanied by fever, chills, or spreading redness. Prompt care is advised for individuals with compromised immune systems or if home remedies fail to improve symptoms within a few days.

Tips for Medical Coders

Document the specific location (right foot) and confirm the diagnosis aligns with the clinical presentation of a furuncle. Ensure the code L02.621 is used only when the furuncle is confined to the right foot and not part of a broader abscess or carbuncle. Include details on lesion characteristics (e.g., size, drainage) to support coding accuracy.