X0206 3 2018-12-19 1 0001753217 Nuveen High Income 2023 Target Term Fund JHAA 0001437043 Rohrbacher Christopher M. C/O NUVEEN INVESTMENTS 333 W. WACKER DRIVE CHICAGO IL 60606 1 Vice President & Asst. Secr. rohrbacherpoa.txt Mark L. Winget/ Signed Under POA 2018-12-19