S60.425S Blister (nonthermal) of left ring finger, sequela

Name of the Condition

• Common Name: Blister (nonthermal) of left ring finger
• Medical Term: Nonthermal blister of left ring finger, sequela

Summary

A nonthermal blister of the left ring finger, sequela, refers to a residual or chronic fluid-filled pocket on the skin resulting from prior friction, pressure, or minor trauma. This condition is classified under the ICD-10-CM code S60.425S, indicating it is a sequela (late effect) of the initial injury.

Causes

Nonthermal blisters on the left ring finger typically result from repetitive friction or pressure. Common triggers include manual tasks, tight-fitting gloves, or contact with rough surfaces. They may also arise from skin reactions to irritants or minor trauma that has healed but left residual effects.

Risk Factors

• Repetitive hand movements or manual labor
• Poorly fitting gloves or accessories
• Prolonged exposure to friction or pressure
• History of prior skin injury to the left ring finger

Symptoms

• Persistent fluid-filled bump on the skin
• Tenderness or pain around the blister
• Redness or mild swelling in the affected area
• Possible scarring or thickening of the skin over time

Diagnosis

Diagnosis is typically made through physical examination of the left ring finger. Healthcare providers assess the blister’s appearance, size, and surrounding tissue. Imaging is rarely needed unless deeper tissue damage or infection is suspected. A detailed patient history regarding prior trauma or exposures may be sought to confirm the sequela status.

Treatment Options

• Protection: Covering with a sterile bandage to prevent further irritation.
• Topical treatments: Use of moisturizers or silicone gel to reduce scarring.
• Pain management: Over-the-counter analgesics if discomfort persists.
• Referral: To a dermatologist or hand specialist for persistent or severe cases.

Prognosis and Follow-Up

Most nonthermal blisters of the left ring finger, sequela, resolve with minimal intervention over time. Follow-up may be recommended to monitor for complications like infection or chronic pain. Prognosis is generally favorable, though scarring or residual sensitivity may persist.

Complications

• Infection of the blister site
• Chronic pain or sensitivity
• Scarring or skin thickening
• Reduced range of motion in the left ring finger

Lifestyle & Prevention

• Wear properly fitting gloves during manual tasks.
• Avoid repetitive friction or pressure on the left ring finger.
• Use protective gear during activities that may cause trauma.
• Keep the affected area clean and moisturized to promote healing.

When to Seek Professional Help

Seek medical attention if the blister shows signs of infection (e.g., pus, increased redness, fever), if pain is severe or worsening, or if there is difficulty moving the left ring finger. Persistent symptoms beyond a few weeks may also warrant evaluation.

Tips for Medical Coders

When coding S60.425S, ensure documentation confirms the condition is a sequela (late effect) of a prior nonthermal blister injury to the left ring finger. Include details about the original injury, timeline, and residual effects to support the sequela designation. Verify laterality (left ring finger) and exclude acute or initial encounters.