Corrosion of unsp degree of back of unsp hand, init encntr

This diagnosis code indicates a chemical burn (corrosion) of an unknown severity affecting the back of the hand, where the specific hand (left or right) is not documented. It signifies the initial treatment or evaluation of this injury.

Apply this code when a patient presents with a chemical burn to the dorsal aspect of their hand, and the medical record does not specify the degree of the burn or which hand is affected. This is appropriate for the first encounter for this specific injury.

• Ensure documentation clearly states "corrosion" or "chemical burn" rather than thermal burn.
• Only use this code when the laterality (left/right) and burn degree are truly unspecified in the medical record.
• Remember the "A" seventh character denotes an initial encounter for active treatment.