Unfortunately no. The amount in Box 12 with code W is what your employer contributed to your HSA and not you. That is the reason you are not getting any tax breaks.
If you contribute any amount to HSA, it will appear in line 2 of form 8889 and you will get the tax break. The amount from line 2 in form 8889 will be carried over to line 13 of Schedule 1 as an adjustment to your income.
Click on the link for more information
HSA W-2
