ASYCUDA
  Online 2012 Harmonised Commodities Code database

You can enter a keyword or the first few digits from the commodity code, e.g. enter "book" to view commodities with the word book in the description, or enter"490" to view commodities whose code begins with 490.  Commodity codes can be as general as 1 digit or as specific as 6.

Commodities with Chapter Code: 10

Commodity Code Description
Section 02 : Vegetable products
   Chapter 10 : Cereals
     Heading 1001 : Wheat and meslin
100110 Durum wheat
100190 Spelt, common wheat and meslin
     Heading 1002 : Rye
100200 Rye
     Heading 1003 : Barley
100300 Barley
     Heading 1004 : Oats
100400 Oats
     Heading 1005 : Maize(corn)
100510 Maize seed
100590 Maize (excl. seed)
     Heading 1006 : Rice
100610 Rice in the husk (paddy or rough)
100620 Husked (brown) rice
100630 Semi-milled or wholly milled rice
100640 Broken rice
     Heading 1007 : Grain sorghum
100700 Grain sorghum
     Heading 1008 : Buckwheat, millet and canary seed and other cereals, nes
100810 Buckwheat
100820 Millet
100830 Canary seed
100890 Other cereal, nes