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SubstancePoisoning, Accidental (unintentional)Poisoning, Intentional self-harmPoisoning, AssaultPoisoning, UndeterminedAdverse effectUnderdosing
Helium NEC (nonmedicinal)T59.891T59.892T59.893T59.894
    medicinalT48.991T48.992T48.993T48.994T48.995T48.996