T43.3X1 - Poisoning by phenothiazine antipsychotics and neuroleptics, accidental (unintentional) T43.3 - Poisoning by, adverse effect of and underdosing of phenothiazine antipsychotics and neuroleptics T43.3X - Poisoning by, adverse effect of and underdosing of phenothiazine antipsychotics and neuroleptics T43.3X1 - Poisoning by phenothiazine antipsychotics and neuroleptics, accidental (unintentional)