Code D with a year suffix is used to indicate the year for which a make-up contribution for a prior year is made under the Uniformed Services Employment and Reemployment Rights Act of 1994 (USERRA). The "17" in code D17 refers to a contribution made for 2017 and is a redundant indication since code D by itself on a 2017 W-2 already means a contribution for 2017. Ignore the "17" and select code D from TurboTax's drop-down box.
