T43.012 - Poisoning by tricyclic antidepressants, intentional self-harm 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 T43.012 - Poisoning by tricyclic antidepressants, intentional self-harm