Sequelae with a late effect code and current burn

When appropriate, both a code for a current burn or corrosion with 7th character “A” or “D” and a burn or corrosion code with 7th character “S” may be assigned on the same record (when both a current burn and sequelae of an old burn exist). Burns and corrosions do not heal at the same rate and a current healing wound may still exist with sequela of a healed burn or corrosion.

See Section I.B.10. Sequela (Late Effects)