See Do I need to report medical expense reimbursements?
https://ttlc.intuit.com/questions/1901115-do-i-need-to-report-medical-expense-reimbursements
To report reimbursement for prior year deduction in TurboTax:
Click My Account (Top right of your screen).
Select Tools.
In the pop up window, select Topic Search.
In the search bar, type in reimbursement of prior deduction
Highlight it and select GO, and follow the prompts.
