Toxic effect of tobacco and nicotine, undetermined, sequela

This code signifies a long-term, residual health problem resulting from exposure to tobacco or nicotine products, where the specific type of tobacco or nicotine is not identified. It indicates that the patient's current condition is a lasting consequence of a past toxic effect.

Apply this code when documenting a chronic or permanent sequela directly attributable to a prior toxic exposure to an unspecified tobacco or nicotine product. This is appropriate for conditions like chronic lung disease or cardiovascular issues that are a direct, lasting result of such exposure, rather than an acute poisoning.

• Always assign a code for the specific sequela (e.g., chronic bronchitis, emphysema) first, followed by this code.
• This code is for undetermined tobacco/nicotine products; use more specific codes if the substance is known.
• The "S" at the end indicates a sequela code, meaning it's used for the late effects of the toxic event.