Toxic effect of smoke, undetermined, initial encounter

This code describes the adverse health effects resulting from exposure to smoke, where the intent of the exposure (e.g., accidental, intentional self-harm, assault) cannot be determined. It signifies the patient's first presentation for this specific toxic effect.

Apply this code when a patient presents with symptoms or conditions directly attributable to smoke inhalation, and the circumstances surrounding the exposure are unclear or undocumented. This is appropriate for initial evaluations and treatments of the acute toxic effects.

• Requires a 7th character "A" for initial encounter, indicating active treatment.
• Do not use if the intent of the smoke exposure is known (e.g., accidental, assault, intentional self-harm).
• Consider additional codes for specific symptoms or conditions resulting from the smoke exposure (e.g., respiratory failure, burns).