Codes / ICD10CM / T23.121A

T23.121A Burn of first degree of single right finger (nail) except thumb, initial encounter

ICD10CM code

ICD10CM

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Name of the Condition

  • Burn of First Degree of Single Right Finger (Nail) Except Thumb, Initial Encounter
  • ICD-10 Code: T23.121A

Summary

A first-degree burn of a single right finger (excluding the thumb) involving the nail is a superficial injury affecting the outer layer of the skin (epidermis). This type of burn is marked by redness, pain, and mild swelling, with the skin remaining intact and no blister formation. The condition is localized to the specified finger and nail area and is documented as an initial encounter.

Causes

Common causes include brief contact with hot surfaces, flames, or scalding liquids. Exposure to steam, direct sunlight, or mild chemical irritants may also result in this type of burn. Friction or minor thermal exposure can occasionally lead to similar superficial damage.

Risk Factors

Factors include working in environments with hot objects or open flames, participating in outdoor activities without sun protection, and handling chemicals without proper safety measures. Occupations involving manual labor or heat exposure may increase risk.

Symptoms

Symptoms typically include redness, pain at the injury site, and mild swelling. The skin remains intact, with no blisters or open wounds. Peeling may occur as the burn heals.

Diagnosis

Diagnosis is based on a physical examination and patient history. The appearance of the skin—superficial redness without blistering—helps differentiate first-degree burns from more severe burns. No imaging or laboratory tests are usually required.

Treatment Options

Treatment typically involves cooling the burn with running water or a cold, damp cloth to reduce pain and swelling. Over-the-counter pain relievers may be used for discomfort. Keeping the area clean and protected from further irritation supports healing.

Prognosis and Follow-Up

First-degree burns generally heal within 3–7 days without scarring. Follow-up may be recommended if symptoms worsen or if there are concerns about infection. Most patients recover fully with minimal intervention.

Complications

Complications are rare but may include secondary infection if the burn is not properly cared for. Prolonged pain or delayed healing could indicate a more severe injury requiring reevaluation.

Lifestyle & Prevention

Preventive measures include using protective gear when handling hot objects, applying sunscreen to exposed skin, and avoiding prolonged contact with heat sources. Proper safety protocols in occupational settings reduce risk.

When to Seek Professional Help

Seek medical attention if redness, pain, or swelling worsens, if blisters develop, or if signs of infection (e.g., pus, increased warmth) appear. Professional evaluation is also advised if the burn does not improve within a week.

Tips for Medical Coders

Document the specific finger (excluding the thumb) and nail involvement, as well as the initial encounter status. Ensure the burn is confirmed as first-degree with no deeper tissue damage. Code T23.121A is appropriate for a single right finger (nail) burn, with "initial encounter" indicating the start of treatment.

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