Deductions & credits

Since we cant' see your return in this forum, most likely the $329 for Medical Expenses is being transferred from a W-2, a 1099-R,  SSA-1099, 1095-A, or another document, since you didn't enter it yourself.

If you are using TurboTax Online, once you have paid for your return, look at the Medical Expenses Worksheet to see what the expense was.