Turbo Tax did not deduct my Medicare Premiums from my Wisconsin tax return, thus increasing my state taxable income by almost $2K. How can I fix this?

My accountant says we can deduct our Medicare Part B premiums taken from our social security on Line 11 of our Wisconsin tax return.    However, Turbo Tax didn't do this.  This increases our Wisconsin taxable income by ~$2,000.  How can we make that happen and file an amended return?