Retirement tax questions

@shancol - No.   Only a code "P" but for a Traditional IRA you check the IRA/SEP/SIMPLE box as well.  That tells it that it is a 2017 return of a 2016 contribution for a Traditional IRA.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**