No, you don’t enter an 8889, we generate one based on your answers in the interview for “HSA MSA Contributions” under Medical under Deductions & Credits.
You probably have an HSA, and the 1099-SA shows the amount of money that was distributed out of the HSA, presumably to go to paying qualified medical expenses. But since the IRS assumes that unless you complete form 8889 (i.e., answer all the questions under “HSA MSA Contributions”) that you spent that money on non-qualifying expenses, you will be penalized by having to report the amount on the 1099-SA as income.
This is presumably not what you want.
So, this is how it works:
For your part, you need to complete the entire interview for the HSA that I referred to above, so that you properly report the money contributed to the HSA (which should be tax-free), and how the money “distributed” (i.e. “spent”) from the HSA was spent (presumably on qualified medical expenses).
Once you complete the questions, the 8889 will be correctly generated, and you will get your tax break.
The following screen shot is what you should see to enter the HSA interview (under Deductions & Credits).