W2 box 12 code c July 8, 2019 16 32 64 128 W2 box 12 code c meaning W2 box 12 code cc W2 box 12 code for hsa contributions W2 box 12 c code dd W2 form box 12 code c Irs w2 box 12 code c What code in form w2 box 12 identifies combat pay Box 12 w2 W-2 form box 12 W-2 box 12 codes