Corrosion of third degree of left thumb (nail), subs encntr

This code signifies a severe chemical burn, specifically a third-degree corrosion, affecting the left thumb, including the nail. Third-degree burns involve full-thickness destruction of the skin and underlying tissue, often appearing white, leathery, or charred, with nerve damage causing a lack of sensation.

Apply this code for follow-up care of a patient previously treated for a third-degree chemical burn to their left thumb. This includes subsequent visits for wound care, debridement, skin grafting, or management of complications arising from the initial injury.

• Ensure the documentation clearly specifies "corrosion" (chemical burn) and not a thermal burn.
• Verify the laterality (left) and specific body part (thumb, including nail) are accurately documented.
• The "D" seventh character indicates a subsequent encounter, meaning the patient is receiving routine care during the healing or recovery phase.