Superficial frostbite of unspecified ear, initial encounter

This code signifies a superficial cold-induced injury to an unspecified ear, characterized by numbness, tingling, and possibly redness or blanching, without blistering or tissue loss. It indicates the earliest stage of frostbite, affecting only the skin surface.

Apply this code when documenting a patient's initial presentation for superficial frostbite of an ear where the specific ear (left or right) is not documented. This is appropriate for cases involving exposure to freezing temperatures resulting in mild, non-blistering ear damage.

• Ensure documentation specifies "superficial" and "initial encounter" for accurate code assignment.
• If the specific ear is known (left or right), use the more precise T33.011A or T33.012A.
• Do not use this code for frostbite with blistering, tissue necrosis, or subsequent encounters.