Just add them as an itemized deduction as if they were your expenses. In TurboTax, go to:
Federal Taxes , then
Deductions & Credits
Click Show More next to Medical
Click Start/Revisit box next to Medical Expenses.
From IRS Pub 17:
What if you pay medical expenses of a deceased spouse or dependent? If you paid medical expenses for your deceased spouse or dependent, include them as medical expenses on your Schedule A (Form 1040) in the year paid, whether they are paid before or after the decedent's death. The expenses can be included if the person was your spouse or dependent either at the time the medical services were provided or at the time you paid the expenses.
