S60.429D Blister (nonthermal) of unspecified finger, subsequent encounter

Name of the Condition

• Common Name: Blister (nonthermal) of unspecified finger, subsequent encounter
• Medical Term: Nonthermal blister of unspecified finger, subsequent encounter

Summary

A nonthermal blister of the unspecified finger is a fluid-filled pocket on the skin resulting from friction, pressure, or minor trauma. It is classified under the ICD code S60.429D, indicating it is a superficial injury to an unspecified finger and represents a subsequent encounter for care.

Causes

Nonthermal blisters on the fingers are typically caused by repetitive friction or pressure. Common triggers include manual tasks, tight-fitting gloves, or contact with rough surfaces. They may also result from skin reactions to irritants or minor trauma.

Risk Factors

• Repetitive hand movements or manual labor
• Poorly fitting gloves or accessories
• Exposure to abrasive materials or chemicals
• Participation in activities with frequent hand use

Symptoms

• Fluid-filled bump on the skin
• Tenderness or pain around the blister
• Redness or mild swelling in the affected area

Diagnosis

Diagnosis is typically made through physical examination of the affected finger. Healthcare providers assess the blister’s appearance, size, and surrounding tissue. Imaging is rarely needed unless deeper tissue damage or infection is suspected.

Treatment Options

• Protection: Covering with a sterile bandage to prevent further irritation.
• Drainage under medical advice if painful or persistent.
• Topical ointments to promote healing and prevent infection.

Prognosis and Follow-Up

Most nonthermal blisters heal within 1–2 weeks with proper care. Follow-up may be recommended to monitor for infection or complications, especially if drainage or bandaging is performed.

Complications

• Infection of the blister or surrounding tissue
• Delayed healing due to repeated friction or pressure
• Scarring in severe or recurrent cases

Lifestyle & Prevention

• Wear well-fitting gloves during manual tasks or sports.
• Avoid prolonged contact with rough or abrasive surfaces.
• Keep the skin moisturized to reduce friction-related injuries.

When to Seek Professional Help

Seek care if the blister shows signs of infection (e.g., pus, increased redness, warmth), if pain is severe, or if it does not improve within 2 weeks.

Tips for Medical Coders

Use code S60.429D for a nonthermal blister of an unspecified finger during a subsequent encounter. Document the affected finger (if known) and the nature of the encounter (e.g., follow-up, treatment) to support coding accuracy.