Corrosion of unsp degree of unsp thumb (nail), init encntr

This code signifies a chemical burn, specifically corrosion, affecting an unspecified thumb or thumbnail. The degree of the burn is not specified, indicating it could range from superficial irritation to deeper tissue damage. It represents the initial encounter for this injury.

This code is appropriate when a patient presents with a chemical burn to the thumb, such as from contact with strong acids, bases, or other corrosive agents. It should be used for the first visit related to this specific injury.

• Ensure documentation specifies the thumb as the affected site; if another finger, a different code is needed.
• Verify that the encounter is indeed the initial treatment for this specific corrosion.
• Look for additional codes to specify the corrosive agent if known and documented.