Specific disease waiting period is the time in which certain diseases or illness such as Knee replacement, Hernia etc would not be covered. The specific disease waiting period has a list of diseases which are not covered during the waiting period. In general the specific disease waiting period would range from 1 year to 2 years which differs from one company to other. The specific disease waiting period is inculcated in the health insurance to prevent people using health insurance only for treatment purpose.