Superficial frostbite of unspecified hand, initial encounter

This code signifies a superficial cold-induced injury to an unspecified hand, characterized by numbness, tingling, and possibly white or red skin, without blistering or tissue loss. It indicates the mildest form of frostbite, affecting only the epidermal and dermal layers.

Assign this code for initial presentations of superficial frostbite where the specific hand (left or right) is not documented. This is appropriate when the patient is receiving active treatment for the frostbite.

• Requires an additional code for any associated open wounds or infections.
• Do not use if blistering or deeper tissue damage is present; refer to codes for intermediate or deep frostbite.
• The "A" seventh character indicates an initial encounter for active treatment.