Dave123, although I live in Greece, I work in the insurance field for many years, and unfortunately pre-existing conditions are excluded when you are getting a life policy. The only way they could cover your disease would be if it was a condition that came up after you were already insured. Unfortunately the insurance companies - at least the ones I know - exclude all pre-existing conditions, the reason is very simple, they consider it a definite loss which will cost them money.
Of course you can get a life policy excluding the CD, but just to cover all the other possible health risks.
Christina