What is Pre-existing Disease (PED) in health insurance?
A pre-existing disease (PED) is any illness, injury or condition you were diagnosed with, or took medical advice or treatment for, within 48 months before buying your health policy, such as diabetes, hypertension or thyroid disorder. Insurers cover PEDs only after a waiting period, which IRDAI now caps at a maximum of 36 months of continuous coverage.
In plain English
It is a health problem you already had before the policy started. You can still get covered, but claims for that condition only begin after you have held the plan for the waiting period.
A quick example
You have diabetes and buy a Rs 5 lakh plan in Jan 2026 with a 36-month PED wait. A diabetes-related hospitalisation in 2027 is not payable, but the same claim from Jan 2029 onwards is covered. Declaring the diabetes upfront is what keeps that future claim valid.
What IRDAI says
The IRDAI Master Circular on Health Insurance (29 May 2024) caps the maximum PED waiting period at 36 months, down from 48 months, applicable to policies from 1 April 2025. Disclosed PEDs cannot be rejected on non-disclosure grounds.
Where to find it in your policy
Not sure where this sits in your own policy? CoverSure reads the full document and pulls up the exact clause for you.
See where to find Waiting Period in your policy →Related terms
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Non-disclosure can get your claim rejected and your policy cancelled, because the insurer treats it as suppression of a material fact. Always declare known conditions at purchase so your later claims stay valid.
No. The 48 months is the window used to decide whether a condition counts as pre-existing. The waiting period, now capped at 36 months, is how long you must hold the policy before that condition is covered.
Yes. If you port to a new insurer at renewal, the pre-existing-disease waiting time you have already served is credited, so you do not start the 36-month clock again from zero.
Reviewed by
Atul SharmaAVP, Founder’s Office at CoverSure · 7+ years in insurance (ex-Tata, Ditto, Cholamandalam)
