On the W-2, Box 12 Code D is for Elective Deferrals to a 401(k) plan.  Is it possible you contributed  $19,805.66 to your retirement plan?   It could be that the comma printed out very lightly or not at all..

You can subtract the amount in Box 1 from the amount in Box 3.  It should give you the amount in Box 12, Code D (or close to it).

To be sure, contact your payroll office.

Thanks guys.

Yeah, I already submitted it as $805.66

Although, it still bothers me that the software didn’t recognize this and tried to autofill this box as $19.00

Edit: Subtracting box 1 from box 3 would’ve given me about -2300. 

Since there is an overall limit on the amount that is permitted to be in box 3, it's better to calculate the difference between box 1 and box 5.

The year designator is to be used for a makeup contribution for a prior year under the Uniformed Services Employment and Reemployment Rights Act of 1994 (USERRA) after return from military service, although some employers mistakenly use the year indicator in conjunction with contributions for the current year.