Made pre-tax contributions to HSA by payroll deduct. W-2 did not include HSA contribution in box 12. Do I need to request corrected W-2? If not, how enter in TurboTax?

Checked help section but do not see anywhere in Turbotax to edit the HSA contribution amount that was not included by employer on W-2.  There was a line to add personal contributions that were made after-tax but mine were made pre-tax.