Hi Gail27
Welcome to the forum, you might want to have a look at the following FAQ which explains where everything is.
Welcome to Benefits and Work Usually it will be a review but it depends on the wording of your award letter.
I don't see much difference between a review and a new claim, I tell everyone who has a review to treat it as a new claim and not just tick, no change. This is where claimants fall down.
What you need to do is take a copy of your original claim and use it as a template for your review form.
If your condition has changed then state how your condition has changed and what affect it the change has on you.
Gary