Retirement tax questions

Our church is using the TurboTax Home Business edition to fill out form W-2.  I have both traditional 403(b) and Roth 403(b) amounts to enter, but the only code that appears for box 12 is "E" for 403(b) contributions.  It seems there is another code (BB) for the Roth 403(b).  How can we correctly report the Roth 403(b), if the program doesn't include that code option?