I have two amounts under box 12 , one for D, and another for Df

[cdono524]

I have two amounts in box 12 D , then DD

[DoninGA]

Code D—Elective deferrals to a section 401(k) cash or deferred arrangement.
Also includes deferrals under a SIMPLE retirement account that is part of a section 401(k) arrangement.

Code DD—Cost of employer-sponsored health coverage. The amount reported with code DD is not taxable