How do I amend this return with the 1099-C information?

I e-filed my 2017 Federal taxes, it was accepted, and I have received my refund.  After filing, I received a 1099-C.  I have selected my original return in TurboTax to be amended but 1099-C is not on the list of items to update.  I'm not finding 1099-C under the Other Tax Situations selection either.  How do I amend this return with the 1099-C information?