Corros unsp degree of unsp mult fngr, not inc thumb, subs

This code signifies a chemical burn of an unknown severity affecting multiple fingers, excluding the thumb, where the specific finger or fingers are not documented. The injury involves the nail or surrounding nail structures. This encounter indicates follow-up care for a previously diagnosed corrosion.

Apply this code for subsequent visits related to a chemical burn of the fingers (excluding the thumb) where the degree of corrosion is not specified and the exact fingers involved are not detailed in the medical record. This is appropriate when the patient is receiving ongoing treatment, monitoring, or rehabilitation for the initial injury.

• Ensure documentation clearly indicates a subsequent encounter for the corrosion.
• Verify that the burn is chemical (corrosion) and not thermal.
• Only use this code when the specific degree and individual fingers (excluding thumb) are not documented.