Here is how to report the information. Enter the code Z when you enter the K-1 box 20 screen, but do not enter an amount on that screen. Instead press Continue
After you answer a few questions on the screen, you will reach a screen that says We need some more information about your 199A income or loss". UBIA is one area that is reported here and you will check that box. Once it is selected, there will be a drop down for you to enter the amount.