I am 70% PTSD disabled, and have stage 4 cancer. If I apply for TDIU, can I be denied for my cancer, or age? I'm 78.
I can't say that either cancer or age would have an effect on the decision. However, if the cancer is not service connected, then VA won't consider that in the decision.
The TDIU benefit is there for veterans who aren't able to work because of a service connected condition. If at age 78 you can convince VA that were it not for the PTSD you'd be working you may get the rating you want. But if you haven't worked in many years and consider yourself retired, the VA may not agree that you're eligible for TDIU. Good luck.