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Claim rejections

What is a pre-existing disease (PED)?

5 min read · Reviewed for general accuracy · Updated May 2026

PED is one of the most common rejection grounds — and one of the most contested. Here's what it actually means.

On this page
1. The definition2. Why it matters3. When an insurer can — and can't — invoke it

The definition

A pre-existing disease is, broadly, a condition you were diagnosed with or had signs/treatment for before your policy began. The exact definition is in your policy wording — read it, because the precise words decide the case.

Why it matters

Policies usually exclude claims arising from a PED until a waiting period is completed. So insurers may cite PED to deny a claim made within that window.

When an insurer can — and can't — invoke it

The burden is generally on the insurer to show the condition genuinely pre-existed the policy. If your records don't show a prior diagnosis, you can ask them to share the medical basis for their conclusion rather than accepting it.

Frequently asked

Facing this with your own claim?

Upload your policy and the insurer’s letter — Claim Saathi reads both, finds the exact clause, and helps you respond.

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This article is general educational information, not legal, medical, or financial advice. Insurance rules and timelines change — verify current regulations before acting, and consult a qualified professional for your specific situation.

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