Corrosion of third degree of scalp [any part], sequela

This code signifies a third-degree chemical burn to any part of the scalp, indicating full-thickness tissue destruction. It is used to report the long-term effects or complications arising from such an injury, rather than the initial acute event. These sequelae can include scarring, alopecia, or chronic pain.

Apply this code when documenting a patient presenting with a current condition that is a direct consequence of a past third-degree chemical burn to the scalp. This would include follow-up visits for scar revision, management of permanent hair loss, or treatment of persistent neurological symptoms related to the original injury. Do not use for the initial treatment of the acute burn.

• Always sequence this sequela code after the code for the specific residual condition being treated (e.g., alopecia, scar).
• Ensure documentation clearly links the current condition to the past third-degree chemical burn of the scalp.
• The "S" in the seventh character indicates sequela, meaning it's used for complications or conditions that arise as a direct result of the initial injury, after the acute phase has passed.