Respiratory conditions due to smoke inhalation

This code signifies respiratory tract damage or dysfunction resulting from the inhalation of smoke, typically from fires. It encompasses a spectrum of conditions ranging from acute tracheobronchitis and pneumonitis to more severe pulmonary edema and acute respiratory distress syndrome (ARDS) directly attributable to smoke exposure. The severity of the respiratory compromise depends on the duration and intensity of exposure, as well as the chemical composition of the smoke.

Apply this code when documentation clearly links a patient's respiratory symptoms and findings (e.g., cough, wheezing, dyspnea, abnormal lung sounds, hypoxemia, or imaging evidence of lung injury) to a history of smoke inhalation. This is commonly seen in patients rescued from burning buildings or those exposed to significant smoke in industrial accidents. Supporting documentation should include a clear history of smoke exposure and clinical evidence of respiratory involvement.

• Always sequence this code as a primary diagnosis when the respiratory condition is the reason for the encounter.
• Do not use this code for respiratory conditions caused by other inhaled noxious fumes or chemicals; those have separate classifications.
• Ensure documentation specifies "smoke" inhalation, not just "fumes" or "gases," to accurately support this code.