Corrosion of first degree of lip(s), initial encounter

This code signifies a superficial chemical burn affecting the lips, characterized by redness and mild pain without blistering or tissue loss. It results from contact with corrosive substances that cause a first-degree injury to the labial tissue.

Apply this code when documenting a patient presenting with a mild chemical burn to the lips, such as from accidental exposure to a household cleaner or an irritant cosmetic. This diagnosis is appropriate for initial evaluations and treatment of such superficial injuries.

• Ensure the documentation clearly specifies "first degree" and "lip(s)" to support this code.
• Verify that the encounter is the initial treatment for this specific injury; subsequent encounters would require a different seventh character.
• Distinguish from thermal burns or other types of lip injuries, as those would be coded differently.