Not quite. You include the amount as "Other Reportable Income" using the steps below. This is assuming you itemized and used medical deductions in the prior year.
If you did not itemize in the prior year or did not get any medical deductions then you do not need to report the amount.
Here is Publication 502 for reference and extracted below from the "How to handle reimbursements" section.
"If you are reimbursed in a later year for medical expenses you deducted in an earlier year, you must generally report the reimbursement as income up to the amount you previously deducted as medical expenses.
However, don't report as income the amount of reimbursement you received up to the amount of your medical deductions that didn't reduce your tax for the earlier year."
"Wages & Income>Less common Income">Miscellaneous Income>Other reportable Income
Use "Medical reimbursement" for a description.
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