Neb. Rev. Stat. § 14-103

The city council of a city of the metropolitan class shall have power to define, regulate, suppress, and prevent nuisances. The city council may create a board of health in cases of a general epidemic or may cooperate with the boards of health provided by the laws of this state. The city council may provide rules and regulations for the care, treatment, regulation, and prevention of all contagious and infectious diseases, for the regulation of all hospitals, dispensaries, and places for the treatment of the sick, for the sale of dangerous drugs, for the regulation of cemeteries, and for the burial of the dead. The jurisdiction of the city council in enforcing such regulations shall extend over such city and within its extraterritorial zoning jurisdiction.