The rider is simply called: "diabetes exclusion" - excluding any disabilities that occur due to diabetes.

When you purchase a condominium and grant a mortgage one of the documents you will be required to sign in connection with your loan is a "Condominium Rider." This rider is an attachment to the document recorded in the land records to secure your loan.

It's called an exclusion rider. It is not just in major medical coverage. It can also be found in other kinds of health and life insurance. Sometimes the exclusion is for a limited and specific time period. Not all exclusions are permanent.

Stay away from the exclusion zone.

The exclusion made him think twice about his behaviour.

This is the Pauli exclusion principle. Wolfgang Pauli was a Jewish physicist, Nobel prize laureate.