? according to 8949 instructions there should be code w for a wash sale if there is an amount in the adjustment column. on the other hand, if you dispose of a security in a fully taxable transaction that had its basis adjusted by a previous wash sale, there would be no adjustment so no code W.
per 8949 instructions
You have a nondeductible loss from a wash sale
use 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).
