Which diseases are not covered in the policy?

As per IRDA Guideline there are some disease are not covered under health insurance policy terms. We are here mentioning some standard exclusions as per the health insurance policy.
1 Preexisting Disease,Alcohol related disease,Self intention injury or disease,genetic disease,and as per waiting period in the policy 30days wating period,ist year wating period,2nd year wating policy and preexisting these all are generally not covered in the health insurance policy