Some introductory biology books state that nematodes have a pseudocoelom. So, they have a false body cavity. So, does it also mean that they have organ level body organisation?
Yes. Nematodes have a fluid-filled cavity that cushions the organs of the organism. The pseudocoelom refers to the digestive tract not being derived from the mesoderm, as is the case of organisms having a true coelom.
