Poisoning by antitussives, accidental (unintentional), subs

This code signifies an accidental overdose or adverse reaction to antitussive medications, such as dextromethorphan or codeine-containing cough suppressants, occurring during a subsequent encounter for care. The patient is experiencing the effects of the poisoning, and this visit is for follow-up treatment, monitoring, or management of complications after initial treatment.

Apply this code when a patient presents for ongoing management of symptoms or complications stemming from an unintentional antitussive poisoning. This includes follow-up appointments after an emergency room visit, hospital discharge, or initial outpatient treatment for the overdose. It is used when the acute phase of the poisoning has passed, but continued care is required.

• Ensure the documentation clearly states the poisoning was accidental and this is not the initial visit for the event.
• Always sequence this code after any codes for specific manifestations or complications of the poisoning.
• Verify the substance involved is an antitussive; do not use for other medication classes.