Corrosion of third degree of right ear, subsequent encounter

This code signifies a severe chemical burn (corrosion) affecting the right ear, excluding the eardrum, where the damage extends through all layers of the skin. This type of injury typically presents with charring, leathery appearance, or deep tissue destruction.

Apply this code when documenting follow-up care for a patient who previously sustained a third-degree chemical burn to their right ear (excluding the eardrum). This includes subsequent visits for wound care, debridement, skin grafting, or monitoring of healing and complications.

• Requires an external cause code (X-code) to identify the corrosive agent and circumstances.
• Do not use for thermal burns; this code is specifically for chemical burns (corrosion).
• Ensure documentation clearly specifies the right ear and excludes the eardrum for accurate coding.