Corros third degree of unsp single finger except thumb, subs

This code signifies a severe chemical burn affecting a single finger (excluding the thumb) that has damaged all layers of the skin, including subcutaneous tissue. The injury is characterized by a full-thickness tissue destruction caused by corrosive agents.

Apply this code when documenting follow-up care for a patient presenting with a third-degree chemical burn to a single finger (not the thumb). This includes subsequent visits for wound care, debridement, infection management, or skin grafting related to the initial corrosive injury.

• Ensure the documentation clearly specifies a third-degree corrosion and identifies the affected digit as a single finger other than the thumb.
• Verify that the encounter is for follow-up care after the initial treatment of the burn.
• Do not use this code for thermal burns; reserve it specifically for chemical injuries.