Does Individual Unemployability increase to regular 100 percent rating after a period?

Individual Unemployability (IU) does not automatically convert to a regular 100 percent disability rating after a certain period. IU is granted to veterans who are unable to maintain substantially gainful employment due to service-connected disabilities, and it can remain in effect indefinitely as long as the veteran meets the criteria. However, veterans can apply for a regular 100 percent rating if their condition worsens or if they believe they meet the requirements for such a rating. The decision is made on a case-by-case basis by the Department of Veterans Affairs.