The first aspect of any disability insurance policy one needs to understand is the renewability feature. There are three basic types of renewability on the market today.

This, in my opinion, is the strongest possibility as far as renewability goes. It guarantees you that after you place a policy in-force that there will be no changes to your premium schedule, your monthly benefits, or your policy benefits to age 65 or a certain age. The insurance company contractually can not change a thing unless you want them to. Many people do not have a guarantee that their income will never go down again, under a Non-Cancellable policy even if your income goes down later in life, if you are totally disabled the company will pay you the total disability benefit you originally placed in-force. Under a Non-Cancellable policy even if you changed jobs from being a white collar, low-risk occupation to a professional weight lifter the company could not change your benefits for the worse. Quite simply, one should consider an individual disability insurance policy that is not Non-Cancellable and Guaranteed Renewable.

This type of renewability feature is different from Non-Cancellable and Guaranteed Renewable. The basis behind the definition says that an insurance company will probably not change anything about the policy, but they can! Almost every insurance carrier that offers a guaranteed renewable contract used to offer a Non-Cancellable and Guaranteed Renewable contract. 

They can change the premium by state, policy year, or occupational class with approval from the state. For an individual disability insurance policy, it is my opinion that you potentially could be making a mistake by going with a GR policy. I believe you are setting yourself up for a potential complications several years into the future. Look for the words on your policy "Non-Cancellable and Guaranteed Renewable", They may not be on the proposal, but they must be on the policy! If it is just Guaranteed Renewable, you may be missing something.