Poisoning by tricyclic antidepressants, accidental, init

This code signifies an acute adverse event resulting from the accidental ingestion or exposure to tricyclic antidepressants. The patient is experiencing the initial effects of the poisoning, which may include symptoms such as cardiac arrhythmias, central nervous system depression, or anticholinergic effects.

Apply this code when a patient presents for initial evaluation and treatment of an unintentional overdose of a tricyclic antidepressant. This includes scenarios where a child accidentally ingests medication or an adult mistakenly takes an incorrect dose. It is used for the first encounter related to this specific poisoning event.

• Ensure the documentation clearly states the poisoning was accidental or unintentional.
• Confirm the substance involved is a tricyclic antidepressant.
• This code is only for the initial encounter; subsequent encounters for the same poisoning event will require a different seventh character.