T50.A11 - Poisoning by pertussis vaccine, including combinations with a pertussis component, accidental (unintentional) T50.A - Poisoning by, adverse effect of and underdosing of bacterial vaccines T50.A1 - Poisoning by, adverse effect of and underdosing of pertussis vaccine, including combinations with a pertussis component T50.A11 - Poisoning by pertussis vaccine, including combinations with a pertussis component, accidental (unintentional)