I assume that you mean 403(b) since there is no such thing as a 402(b) plan.
If the rollover was a direct rollover, the plan will report it on a Form 1099-R with code G that you must enter into TurboTax. After answering No to the questions that ask if it was rolled over to some type of Roth account, TurboTax will treat it as a nontaxable rollover and exclude it from the amount on Form 1040 line 5b with the ROLLOVER notation.
If the rollover was an indirect rollover reported with code 1, 2 or 7 on the Form 1099-R, after entering the form details you must indicate that the distribution was moved to another retirement account and indicate the amount rolled over.
