The Motley Fool says its extended.  Article dated Oct 2018

https://www.fool.com/taxes/2018/10/13/can-i-still-deduct-my-mortgage-interest-in-2018.aspx

The deduction for PMI has been set to expire several times and has been extended by Congress each time. And 2018 is no exception. Under the revised tax code, the PMI deduction has been extended for the 2018 tax year. Essentially, this allows you to treat your mortgage insurance premiums as interest for tax purposes.