Acc pnctr & lac of the ear/mastd dur proc on the ear/mastd

This code signifies an unintended injury to the ear or mastoid process, such as a perforation or tear, that occurs as a direct complication during a surgical or diagnostic procedure performed on the ear or mastoid itself. It indicates an iatrogenic event where the ear or mastoid is inadvertently damaged during an intervention targeting that specific anatomical area.

Apply this code when documentation clearly states an accidental puncture or laceration of the ear or mastoid process occurred during a procedure on the ear or mastoid. Examples include a tympanic membrane perforation during myringotomy, or mastoid cortex injury during mastoidectomy. The operative report or physician's notes must explicitly link the injury to the procedure.

• Always sequence this code after the primary code for the underlying condition or reason for the procedure.
• Do not use this code for injuries to the ear or mastoid process that occur during procedures on other body parts.
• Ensure documentation specifies "accidental" or "unintended" to differentiate from intentional surgical incisions.