Waiting Periods & Pre-Existing Diseases
The waiting periods in a health policy — initial, specific-disease, pre-existing disease and maternity — the 36-month caps that apply since 1 April 2024, the duty to disclose, and the 60-month moratorium.
Why waiting periods exist
A waiting period is a time from the start of a policy during which certain claims are not payable. Without it, cover could be bought only once treatment was already expected and claimed on at once, at the cost of everyone else in the pool. The period counts continuous cover, so the clock keeps running at each renewal made without a break.
The four kinds
The initial waiting period runs from the start of a new policy: illness claims arising in it are not paid, while hospitalisation caused by an accident is usually covered from the first day. Its length is set by each policy and shown in the Customer Information Sheet.
A specific-disease waiting period delays cover for conditions listed in the policy, commonly cataract, hernia, joint replacement and gallstones, whether or not the insured had them before. A pre-existing disease (PED) waiting period delays cover for conditions the insured already had. Maternity cover, where offered, has its own waiting period, so that cover is not bought only once a pregnancy is known; its length is set by each product.
What counts as pre-existing, and the caps
A PED is a condition, ailment, injury or disease diagnosed by a physician, or for which medical advice or treatment was recommended or received, within 36 months before the policy began. Until 1 April 2024 this look-back was 48 months.
Since 1 April 2024 neither the PED waiting period nor a specific-disease waiting period may exceed 36 months of continuous cover; a product may set a shorter one. Older material quotes 48 months. Once the waiting period for a disclosed PED is served, claims for it are payable like any other, subject to the policy terms.
Disclosure and the moratorium
A proposer must disclose known conditions in the proposal. If a PED was not disclosed, the insurer may reject a related claim even after the waiting period has run.
That right is limited in time. After 60 continuous months of cover, the moratorium, a policy or claim cannot be contested for non-disclosure or misrepresentation unless fraud is established. Cover carried over through portability or migration counts towards the 60 months. The period was 96 months (eight years) until IRDAI shortened it in 2024.
Rules at a glance
Three claims, three answers
Illustration: Sunita, 48, was advised medicine for high blood pressure two years before buying her policy, and says so in the proposal. Because the advice fell within the 36-month look-back, it is a pre-existing disease and the policy's PED waiting period applies to it.
A fracture from a road accident in her second month is usually covered at once. A cataract operation, if cataract is on her policy's list, falls under the specific-disease waiting period even though she had no eye trouble when she bought the policy.
Counting the months after a port
- Assumptions: a policy of ₹5 lakh starts at month 0 with a 36-month PED waiting period; at month 24 it is ported, without a break, to a policy of ₹8 lakh that also has a 36-month PED waiting period.
- Credit carried over: 24 months, to the extent of the earlier ₹5 lakh.
- On the first ₹5 lakh: 36 − 24 = 12 months remain, so PED cover starts at month 24 + 12 = 36.
- On the additional ₹8 lakh − ₹5 lakh = ₹3 lakh: the waiting period applies afresh, so PED cover starts at month 24 + 36 = 60.
Result. From month 36 a PED claim is payable within ₹5 lakh; the full ₹8 lakh is available for it from month 60.
Key points
- Initial and maternity waiting periods are set by each policy; accidents are usually covered from the first day.
- PED and specific-disease waiting periods cannot exceed 36 months since 1 April 2024.
- A PED is judged over the 36 months before the policy began and must be disclosed.
- After 60 continuous months a claim cannot be contested for non-disclosure unless fraud is established.
Common misunderstandings
- Thirty-six months is a ceiling, not a standard figure: a product may set a shorter waiting period.
- Serving the waiting period does not cure non-disclosure: an undisclosed PED can still lead to rejection of a related claim until the moratorium is complete.
- The moratorium is not a waiting period: it limits the insurer's right to contest for non-disclosure, and it does not protect a case of established fraud.
Questions people ask
Does a claim after an accident have to wait?
Usually not. Hospitalisation caused by an accident is usually covered from the first day of the policy.
Does raising the sum insured restart the waiting periods?
Under the usual terms, only for the increase. Credit already earned continues for the earlier sum insured.
Does the moratorium count time with a previous insurer?
Yes. Cover carried over through portability or migration counts towards the 60 continuous months, to the extent of the earlier sum insured.
What this lesson relies on
- IRDAI (Insurance Products) Regulations, 2024 (in force 1 April 2024)
- IRDAI Master Circular on Health Insurance Business (29 May 2024) — waiting periods, moratorium, portability and migration
This lesson was reviewed independently against these sources on 8 October 2026. Rules change: check the current regulation, scheme document or policy wording before relying on any figure. This is education, not advice.