Inhalation of liquid air, initial encounter

This code describes the initial presentation of a patient who has aspirated or inhaled liquid air. This is a rare but serious event, often occurring in industrial or laboratory settings, and can lead to severe respiratory distress, frostbite of the airways, and other systemic effects due to the extreme cold and inert gas properties of liquid air.

Assign this code when documenting the first medical encounter for a patient who has inhaled liquid air. This would typically be in an emergency department or acute care setting following an industrial accident or accidental exposure. It signifies the immediate and acute phase of injury.

• Always assign an external cause code (V00-Y99) in conjunction with this code to fully describe the circumstances of the incident.
• Look for documentation of "initial encounter" to ensure appropriate seventh character assignment. Subsequent encounters for follow-up care or complications would use a different seventh character.
• Consider additional codes for specific resulting conditions, such as frostbite of the respiratory tract (T33-T34 with appropriate fifth and sixth characters) or respiratory failure.