T43.011 - Poisoning by tricyclic antidepressants, accidental (unintentional) T43.0 - Poisoning by, adverse effect of and underdosing of tricyclic and tetracyclic antidepressants T43.01 - Poisoning by, adverse effect of and underdosing of tricyclic antidepressants T43.011 - Poisoning by tricyclic antidepressants, accidental (unintentional)