In my schedule K-1, box 19, my form says "Code Z section 199A income" but Turbotax does not have an option for this. Also what to enter if there's nothing in boxes 15-16?

Double check your K-1 form, as that description for Code Z is actually for Box 20 of the form if the K-1 is for a Form 1065, instead of box 19.  See the screenshot of the K-1 box 19 and 20 descriptions.

And if there are no amounts in boxes 15 and 16, then leave them blank in the K-1 entry.

Thanks for the quick response. There's actually no codes then on box 19. It just says "other items not included above that are required to be reported separately to partners".. and then right below (so above box 20) it says "code z section 199A income" So there's an amount in boxes 15, 16 and 19, but no codes in any of them. So do I leave the codes blank?

Actually there was nothing in 15 and 16.. I was referring to the wrong part, but figured it out. Thanks for your help!