Yes, in the state of Tennessee it does. I have been denied by all independent agencies, and by TennCare, too. They all say I am uninsurable even though I have lifetime coverage on any and all heart problems through a workers compensation settlement.
Many people who are denied insurance use other alternatives.
If your employer has a group plan, that is your best bet. The advantage of a group plan is that pretty much everyone is accepted, regardless of health. If you can't get coverage that way, check with your state. Depending on where you live, you may be able to get coverage though a state program. In Colorado, I am under the state's "CoverColorado" program and in Wisconsin I was covered under "HIRSP". (I've had a pacemaker since I was 20.) Check out your state's department of health for available programs. It seems that not all states have such programs in place, though I know a few (like Tennessee) are in the process of implemeting such a program.