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

This code signifies a severe chemical burn affecting the lips, characterized by full-thickness tissue destruction. This type of injury typically involves damage to all layers of the skin and underlying tissue, often resulting in charring, necrosis, and a white or leathery appearance.

Apply this code when documentation clearly indicates a third-degree chemical burn to the lip(s) during the initial phase of treatment. This includes the first encounter for the injury, regardless of whether it's for evaluation, emergency care, or initial definitive treatment.

• Ensure the documentation explicitly states "third degree" and "corrosion" or "chemical burn" to the lip(s).
• Verify that this is the patient's first presentation for this specific injury.
• Do not use for thermal burns; a different code series applies for heat-related injuries.