Does your novel or story cross the genre lines? Is it something like this; my book is a contemporary paranormal romantic young adult thriller fantasy. Phew! Say that three times fast.
Todays modern novels do not fit into the simple guidlines of yesterday. There is still the basics, but then you have a vampire who is from another world, who falls in love with a human being who finds out she can use magic and they fight the zombies and the mafia together.
Catagory my dear? Who knows. I'm going to bed.