Corrosion of second degree of chin, sequela

This code signifies a second-degree chemical burn, also known as corrosion, affecting the chin, where the acute injury has healed and the patient is now experiencing a late effect or complication. This could include scarring, contracture, or other persistent issues resulting from the initial burn.

Use this code when documenting a patient presenting with a long-term complication or sequela directly attributable to a previously sustained second-degree chemical burn of the chin. This applies when the initial burn is no longer active or acute, and the current encounter addresses the residual effects.

• Always assign an external cause code (V00-Y99) to describe the circumstances of the corrosion, if known.
• Do not use this code for acute or active second-degree chemical burns of the chin; those require codes from the T20.2-T20.3 series.
• Consider additional codes for specific sequelae, such as scar formation (e.g., L90.5) or contracture (e.g., M24.50), if applicable.