Corrosion of third degree of left palm, subsequent encounter

This code signifies a severe chemical burn affecting the palm of the left hand, characterized by full-thickness tissue destruction. Such injuries typically involve damage to all layers of the skin, potentially extending to subcutaneous tissue, muscle, or bone.

This code is appropriate for follow-up encounters for a patient being treated for a third-degree chemical burn to the left palm. This includes visits for wound care, debridement, skin grafting, or monitoring of healing progress after the initial treatment phase.

• Ensure documentation specifies "corrosion" (chemical burn) rather than a thermal burn.
• Verify the encounter is "subsequent" and not the initial treatment for the burn.
• Confirm the laterality is explicitly documented as "left palm."