2016 TurboTax's drop-down text assumes that you are entering a 2016 Form 1099-R. If you have received a code P (or code R) 2017 Form 1099-R that you must enter into 2016 TurboTax, select code P (or code R) and later in the follow-up TurboTax will ask you if it's actually a 2017 Form 1099-R.
