Corros third degree of unsp single finger except thumb, init

This code signifies a full-thickness burn injury to a single, unspecified finger (excluding the thumb), affecting all layers of the skin and potentially underlying tissue. The injury presents with charring, eschar formation, and often a lack of pain sensation due to nerve damage.

Apply this code for initial encounters involving a severe, third-degree corrosive burn to any single finger other than the thumb. This includes chemical burns that have resulted in complete destruction of the skin layers.

• Ensure documentation clearly specifies a third-degree burn and identifies a single finger (not the thumb).
• Verify the encounter is the initial treatment for this specific injury.
• Do not use this code for thermal burns; it is specific to corrosion.