The SSA reported as income (1099, box 3) an amount that was not income, it was a distribution from my mother's estate (already taxed). How do I address this in TurboTax?

The amount in question was previously included as in come on my deceased mother's final 1099. But the SSA took it out of her checking account, gave it to me and also reported it in my 1099. I explained the situation to a SSA rep and her response was that I need to address it with the IRS.