Insurance · 8 min read
Health insurance waiting periods, and when your cover really starts
The initial wait, the disease-specific list, the pre-existing clause and the five-year moratorium. What each one blocks, and for how long.
Krish Dalal
Founder and editor, PaisaExpert. Master's in Business Management, SP Jain School of Global Management, London. · Last updated 2026-09-05
Every waiting period runs from when the policy started, not from when you fell ill. Which is why the honest advice is always to buy before you need it, and why switching insurers casually can be expensive.
The four clocks
| Clock | Typical length | What it blocks |
|---|---|---|
| Initial waiting period | 30 days | Any illness claim. Accidents are covered from day one. |
| Specific conditions | 1 to 2 years | A named list: cataract, hernia, piles, some joint replacements, ENT procedures |
| Pre-existing disease | Up to 3 years | Conditions you already had when you bought |
| Moratorium | 5 years of continuous cover | After this the insurer cannot reject on non-disclosure of history, except for proven fraud |
Pre-existing is broader than you think
A pre-existing condition is anything diagnosed, or for which you took advice or treatment, before the policy started. Diabetes and hypertension are the obvious ones. Less obvious: a thyroid condition managed with a daily tablet, or something a doctor mentioned once in a report you never followed up. The maximum wait for these is now three years, reduced from four, but the wait is only your friend if you declared the condition in the first place.
The moratorium is your protection
After five continuous years of cover, the policy becomes far harder to unpick. The insurer can no longer refuse a claim on the grounds that you failed to disclose something years ago, unless they can establish deliberate fraud. This is the reason continuity matters more than a slightly cheaper premium elsewhere, and the reason a lapsed policy is genuinely costly: the clock can restart.
Porting keeps your clocks running
- You can port to another insurer at renewal and carry your accumulated waiting periods with you.
- Apply to the new insurer at least 45 days before renewal. Leave it later and you may not be able to port at all.
- Credit carries over on the sum insured you already had. Increase the cover at the same time and the increase may serve a fresh wait.
- Do not let the old policy lapse before the new one is confirmed. A gap can reset everything you have built.
What to do next
- Find your policy document and note the date cover started. Every clock runs from there.
- Check the specific-conditions list, because it is where most first-year rejections come from.
- If you are approaching five continuous years, do not switch insurers casually.
