Poisoning by tricyclic antidepressants, accidental, subs

This code signifies an adverse health effect resulting from an unintended overdose or exposure to a tricyclic antidepressant (TCA) during a follow-up visit. The patient is experiencing ongoing symptoms or complications from a previously treated acute poisoning event.

Apply this code when a patient presents for continued management, monitoring, or treatment of residual effects following an accidental tricyclic antidepressant poisoning. This includes situations where the patient is seen for persistent cardiac arrhythmias, neurological deficits, or other complications after the initial acute phase has passed.

• Ensure documentation clearly states the poisoning was accidental and due to a tricyclic antidepressant.
• The "D" seventh character indicates a subsequent encounter, meaning the patient is receiving routine care during the healing or recovery phase.
• Always sequence this code after any codes for the specific manifestations or complications of the poisoning.