Repayment of 3rd Party Disability Benefits

I received a letter from my 3rd party disability insurer that stated: I may be able to recover taxes that I paid on benefits I originally received in previous years and then repaid to my insurer in 2019.

 

I assume that I have to file an amended return for 2019, correct? I am a TurboTax Online user.

 

How exactly do I handle this on the amended 2019 return? (Deduction or a Credit?) I'm not totally clear after reading IRS Pub. 525, ugh!

 

Thanks in advance!