Corros third degree of unsp mult fngr, inc thumb, init

This code signifies a severe, full-thickness burn injury affecting multiple, unspecified fingers, including the thumb. The corrosion indicates a chemical burn that has destroyed all layers of the skin, potentially damaging underlying tissues.

Apply this code when documenting the initial treatment for a patient presenting with a third-degree chemical burn to several fingers, including the thumb, where the specific fingers involved are not individually documented. This is appropriate for the first encounter for this specific injury.

• Ensure documentation clearly specifies "third degree" and "corrosion" (chemical burn).
• Verify that "multiple fingers" and "including thumb" are indicated, and that the specific fingers are not itemized.
• Confirm this is the initial encounter for this burn; subsequent encounters would use a different seventh character.