Other financial discussions

I have the 2020 ROTH contribution return with gain.  Since I won't be getting a 1099-R until January or February next year.  I am now creating a substitute 1099-R for my 2020 tax return.   I am 70, so what is the code for the box  7?   I had a guy from Schwab said PJ.  Doesn't look like it.  P is Return of contribution taxable in 2019 - but mine is taxable 2020.  And J is early distribution which I believe is for those under 59 1/2 and subject to 6% penalty.  Please advise.