Wash sale loss disallowed adjustment code

where do you see this because that's not what the 8949 instructions say?

You have a nondeductible loss from a wash sale
code W
Report the sale or exchange on Form 8949 and enter the amount of the nondeductible loss as a positive number in column (g). See the Schedule D instructions for more information about wash sales generally and Pub. 550 for more information on wash sales involving substantially similar stock or securities. If you received a Form 1099-B (or substitute statement) and the amount of nondeductible wash sale loss shown in box 1g is incorrect, enter the correct amount of the nondeductible loss as a positive number in column (g). If the amount of the nondeductible loss is less than the amount shown on Form 1099-B (or substitute statement), attach a statement explaining the difference. If no part of the loss is a nondeductible loss from a wash sale transaction, enter -0- in column (g).

so if you have a wash sale leave the code W. 

I don't understand what Turbotax is saying unless the import was corrupt or incomplete. 

in the 8949 instructions code N is if you are a nominee (the gain or loss belongs to someone else) 

You received a Form 1099-B or 1099-S (or
substitute statement) as a nominee for the

Report the transaction on Form 8949 as you would if you
were the actual owner, but also enter any resulting gain as
a negative adjustment (in parentheses) in column (g) or any
resulting loss as a positive adjustment in column (g). As a
result of this adjustment, the amount in column (h) should
be zero.
actual owner of the property
N