Corros 2nd deg mul sites of head, face, and neck, sequela

This code signifies a second-degree chemical burn (corrosion) affecting multiple areas of the head, face, or neck. It is used to report the long-term effects or complications arising from such an injury, not the initial acute event. These sequelae could include scarring, disfigurement, or functional impairment.

Apply this code when documenting the residual conditions or late effects of a second-degree chemical burn to multiple sites of the head, face, or neck, after the acute phase of the injury has resolved. This is appropriate for follow-up visits addressing ongoing problems directly attributable to the past corrosion.

• Always use this code with an additional code specifying the nature of the sequela (e.g., scar, contracture).
• Ensure documentation clearly indicates the injury was a chemical burn (corrosion) and not a thermal burn.
• The "S" in the 7th character indicates sequela; do not use for initial or subsequent encounters for the acute injury.