Corrosion of first degree of unsp toe(s) (nail), init encntr

This code signifies a superficial burn injury, specifically a first-degree corrosion, affecting one or more toes or their nails. This type of injury typically involves only the outermost layer of skin, presenting with redness, mild swelling, and pain, but no blistering or open wounds.

Apply this code when documenting a patient's initial presentation for a first-degree chemical burn to the toe(s) or toenail(s). This would include exposure to corrosive substances like strong acids or bases that result in superficial tissue damage.

• Ensure the documentation clearly specifies "corrosion" rather than a thermal burn.
• Confirm the burn is indeed first-degree, meaning no blistering or deeper tissue involvement.
• The "A" in the seventh character indicates an initial encounter for this specific injury.