The documents that decide an insurance dispute

The essential four

If you collect nothing else, collect these.

Policy wording

The contract. Arguments about cover start with its wording — and an exclusion that is not written in it cannot be used to cut your claim.

Policy schedule

Your dates, sum insured, members and any endorsements.

The insurer's decision letter

The reason you are answering, and the clause it relies on.

Discharge summary

The clinical record, including when a condition was first known.

Supporting documents

These prove the amounts and fill the gaps in the story.

Final itemised bill and receipts

What was charged, and what you paid.

Investigation reports and prescriptions

What was done and why.

Claim form and acknowledgement

What you told the insurer, and when.

Earlier policies

Continuous cover can change which waiting periods apply.

Proposal form

Relevant whenever non-disclosure is alleged. The insurer must give you a copy of it with the policy document.

Correspondence

Everything exchanged, with dates.

When something is missing

Ask the hospital or the insurer for a copy in writing, and keep the request. A documented attempt to obtain a record is itself useful when explaining a gap.

A missing document should not, on its own, close your claim: IRDAI's 2024 master circular says no claim shall be rejected or closed for want of documents. Say plainly what is missing and why, rather than leaving a hole for the other side to fill with an assumption.

Which documents matter for which argument

The insurer's stated reason decides what you need. Collecting everything is fine; knowing which one answers the point is better.

Pre-existing disease alleged

Medical records showing when the condition was first diagnosed, prescriptions from before the policy, and every earlier policy proving continuous cover.

Non-disclosure alleged

The proposal form as submitted, and any medical examination report the insurer arranged before issuing the policy.

Treatment said to be unnecessary

The treating doctor's notes, the admission advice and the discharge summary, in the doctor's own words.

Amount disputed

The itemised final bill, the payment receipts, and the insurer's own computation sheet showing each deduction.

Delay alleged against you

Proof of when you intimated the claim and sent each document — emails, courier receipts, portal acknowledgements.

How to keep them

Scan or photograph every page before parting with an original, and keep the set in one place rather than across a phone, an inbox and a drawer.

Name files so a stranger could sort them: what it is, and its date. You will be reading this file months from now, in a worse mood.

Read next

• Your insurance claim was rejected. Here's what to do next.What a rejection letter actually means, how to check the insurer's reason against your own policy, and the steps open to you in India — explained plainly.
• How to read a claim rejection letterA rejection letter has four parts that matter and a lot of formality around them. Here is what to find, in what order, and what each part decides about your next step.
• Filing an insurance grievance in IndiaStart with the insurer's grievance officer; then Bima Bharosa, or the Insurance Ombudsman once its conditions are met — and what a complaint should contain.
• Insurer says the hospitalisation was 'not medically necessary' — how do I answer that?Answering a 'not medically necessary' rejection: the policy definition, its four tests, the evidence for each, and what the doctor's letter should say.
• How to file a health insurance reimbursement claim after paying the hospital yourselfA step-by-step health reimbursement claim: notice, documents, deadlines, proof of sending, the 15-day settlement rule and interest if the insurer is late.
• What does my policy's 'conditions' section expect me to do when I make a claim?What an insurance policy's conditions section expects when you claim — notice, documents, records, police reports — and what a late notice cannot do to a claim.