Do I have to report the pre-tax AFLAC accident insurance premiums amount in Box 12 with Code W?

I purchased AFLAC accident insurance through my employer last year. In order to be able to deduct the premiums on a pre-tax basis, my employer set it up as a Cafeteria Section 125 plan. The amount of premiums I paid is listed in Box 12 with code W.  However, TurboTax is calling it an HSA and saying that I will be liable for 6% tax if I don't withdraw the money. But it's a premium - there is no money to withdraw. TT is also asking about an HDHP (which I don't have). My employer verified with Quickbooks (our payroll service) that how this is set up on the employer's end is correct. What do I do? Do I have to report the amount of the premiums in Box 12?