Which Diseases are Declined In Health Insurance | You will not get cover for these diseases or conditions br If you have 1) Heart problem, br 2) have undergone open heart surgery, br 3) have undergone bypass surgery, br 4) Diabetes mellitus type 1 and taking insulin, br 5) Alzheimer, br 6)Parkinson, br 7) cancer, br 8)taking HIV treatment etc. br So the above are diseases which are declined in health insurance. The person will not get health insurance policy for the above. br ------------------------------------------------------------------------------------------------------------------------ br br br br For any kind of help br Toll Free No.