Blizzard (snow)(ice), initial encounter

This code identifies an injury or adverse health effect sustained as a direct result of a blizzard, which includes severe snow and ice conditions. It signifies the very first instance of a patient presenting for care related to this specific blizzard event.

This code is appropriate for documenting conditions such as frostbite, hypothermia, fractures from falls on ice during a blizzard, or other injuries directly attributable to the severe weather. It should be used when the patient is receiving initial treatment for these blizzard-related issues.

• Always assign a more specific injury code (e.g., T33.XXXA for superficial frostbite, T68.XXXA for hypothermia) as the primary diagnosis, with this code as an external cause code.
• Ensure the "A" for initial encounter is appropriate; subsequent encounters would use "D" or "S."
• Verify documentation clearly links the injury or condition to a blizzard event.