Corrosion of third degree of right upper arm, subs encntr

This code signifies a full-thickness chemical burn (corrosion) affecting the right upper arm, where the skin layers, subcutaneous tissue, and potentially underlying structures are destroyed. The injury is severe, often presenting with a leathery appearance, insensitivity to touch, and requiring significant medical intervention.

Apply this code for follow-up care of a patient previously treated for a third-degree chemical burn to the right upper arm. This includes encounters for wound care, debridement, skin grafting, or management of complications during the healing phase. It is appropriate for any visit after the initial treatment of the acute injury.

• Ensure documentation clearly specifies "right upper arm" and "third degree" for chemical burns.
• The "D" seventh character indicates a subsequent encounter, meaning the patient is receiving routine care during the healing or recovery phase.
• Distinguish between thermal burns (T22.3-) and chemical burns (T22.7-) based on the etiology documented.