Roth 401k reversal

For reasons that are irrelevant I had to reverse all 401k contributions halfway last year (2020). All contributions were Roth. I received a 1099-R form that treats the final reversed amount as a distribution with code (box 7) E, which implies "Distributions under Employee Plans Compliance Resolution System (EPCRS)".  Also, 10% of the distribution was withheld for federal taxes (box 4). I don't believe any of this should be taxable. So how should I make sure of this when entering this in Turbotax?