A poisoning is caused by an external substance. Some doubts remain on the exact classification place: USN takes it as a very general 'Phenomenon'; on the other hand, no poisoning is possible without some biologic function which affects the organism being injured. We provisionally take it as a straight biologic function.
(=> (Poisoning ?Self)
(And (Exists (?A)
(And (Bearer ?Self ?A)
(Or (Anatomical-Structure ?A) (Organism ?A))))
(Exists (?B) (And (Cause ?Self ?B) (Substance ?B)))
(Forall
(?C)
(=> (Complicates ?Self ?C)
(Or (Disordered-Function-Caused-By-Anatomical-Abnormality ?C)
(Pathologic-Function ?C)
(Injury-Or-Poisoning ?C))))
(Forall (?D)
(=> (Result-Of ?Self ?D)
(Or (Behavior ?D) (Health-Care-Activity ?D))))))