no you're not reading it wrong at all, you're just readng part 6 - the bit that everyone else reads.
try reading part 7 of the current, Nov 2010 R codes.
a class 1 or 10a building is covered in part 6.
a class 2, 3, 4, 6, 9a or 9c building is covered with part 7.
other uses (7, 8, 9b and...