Box 12 w2 code aa July 8, 2019 16 32 64 128 W2 box 12 code aa meaning W2 box 12 code aa22 Irs w2 box 12 code aa Form w2 box 12 code aa 2023 w2 box 12 code aa Box 12 w2 Box 12 aa code Box 12 code w Box 12 c