I got an EED based on a hospitalization for IU. However, I had to appeal the original TDIU date I got based on when the VA got my request for IU. At first I tried to use the date I was considered disabled by SSA. The VA did not buy that but the dates of SSD and the hospitalization are the same date. When you get to inferred claims the VA is going to fight. You have to prove to them that the claim should have been inferred. That is not how it is supposed to work. They are supposed to look at the facts and infer the claim. I don't think I have ever heard of them doing it. For instance, you are rated 30% and have SSD. The VA knows this. They don't infer a claim for IU until you get 70%. This is wrong by their own regs. Any documented indication that you may not be able to work is supposed to trigger an inferred IU claim according to VBM. It never happens. I think this happens all the time during C&P exams. The doctor finds problems that should be inferred as secondary to a primary SC condition, but no inferred claim results. You have to file a claim and try to get the VA to accept the facts revealed in the c&p as being the effective date of an inferred claim. This is absurd.