HTS Code 1904.90 - Cereals (excluding maize [corn]) in grain or flake form or other worked grains, pre-cooked or otherwise prepared, n.e.s. (excluding flour, groats and meal, food preparations obtained by swelling or roasting or from unroasted cereal flakes or from mixtures of unroasted cereal flakes and roasted cereal flakes or swelled cereals and bulgur wheat)