If your W2 has health insurance in box 12 DD, it's pre tax dollars.
You will not enter it in the Medical expenses section.
W-2 box 12 code DD : this
has no effect on your tax return.
DD—Cost of employer-sponsored
health coverage. The amount reported with Code DD is not taxable.
Code DD in Box 12 is the cost
that your employer/and/or you, paid for your Health Insurance.
It is informational but it is
not included in your tax filing. You can enter it in the W-2 Box 12 drop
down menu - it is found after z.
https://www.irs.gov/affordable-care-act/form-w-2-reporting-of-employer-sponsored-health-coverage
