How to Avoid Health Insurance Claim Rejections

Read Your Policy — Especially the Exclusions

This sounds obvious, but very few people actually read their policy document before they need to make a claim. The exclusions section is the most important part. Look specifically for:

• Pre-existing disease waiting periods — how many years before a disclosed condition is covered?
• Specific treatment exclusions — dental, cosmetic, fertility, obesity-related surgeries, etc.
• Defined terms — what does the policy mean by "hospitalisation"? By "medically necessary"? By "pre-existing disease"?
• Co-payment clauses — do you pay a percentage of every claim?
• Sub-limits — is room rent capped at a daily limit? Are ICU charges subject to a sub-limit?

If you bought your policy through a broker or aggregator, ask them to explain the exclusions in plain language before the policy is finalised.

Disclose Everything Honestly at the Time of Purchase

The single most common ground for claim rejection is non-disclosure of a pre-existing condition at the time the policy was bought. The insurance company will look at your medical history at the time of a major claim, and any undisclosed condition that looks related to your current hospitalisation will be used against you.

What to disclose: Any condition for which you have ever sought medical advice, received a diagnosis, or taken medication — even if you haven't been hospitalised for it. This includes hypertension, diabetes, thyroid conditions, asthma, cardiac conditions, and chronic pain.

Common mistake: People don't disclose conditions they consider "minor" or "well-controlled." The insurer doesn't see it that way.

Good news: Disclosed pre-existing conditions are covered after the waiting period. They don't make you uninsurable — they just delay coverage for that specific condition.

Verify Your Hospital's Network Status Before Non-Emergency Admissions

If you have time to plan — for elective surgery or an expected hospitalisation — check whether your hospital is in your insurer's cashless network before you are admitted.

Being admitted to a non-network hospital doesn't mean your claim is lost, but it does mean:

• No cashless facility — you pay upfront and claim reimbursement later.
• Some policies impose a 10–20% co-payment for non-network hospitals.
• You will need to keep every original bill, receipt, and discharge document.

For emergencies, network status doesn't matter — you go to the nearest capable hospital. Just notify your insurer within 24–48 hours of admission.

Understand What "Group Policy" Actually Means

If your health cover comes from your employer, you need to know a few things:

• Your coverage ends when your employment ends. Many people discover this only when they're admitted to hospital weeks later.
• You usually have no say in the policy terms. The employer negotiates everything.
• Premium payment is the employer's responsibility. If your employer lapses on payments, your policy may be cancelled without you knowing.

What to do: always find out the exact policy number and TPA contact details. Keep a screenshot of your health card. As soon as you leave a job, arrange personal health cover immediately.

Inform Your Insurer Within the Required Window

Most policies require you to notify the insurer within 24–48 hours of an emergency hospitalisation, and in advance for planned procedures. Missing this window doesn't automatically void your claim, but it gives the insurer grounds to question it.

If you are in an emergency and can't call yourself, ask a family member to do it. Keep the call reference number.

Get Everything in Writing From the Hospital

Before you leave the hospital, make sure you have:

• Original discharge summary
• All original bills (itemised, not just the summary)
• Pharmacy bills with original receipts
• All investigation reports (blood tests, scans, ECG, etc.)
• Implant stickers if any device was used during surgery
• Doctor's certificate confirming the diagnosis and treatment necessity

Claim rejections often turn on document gaps. A missing lab report or an unsigned discharge summary can delay or derail an otherwise valid claim.

Watch the ICD Codes on Your Discharge Summary

The ICD code that your treating doctor assigns to your diagnosis will appear on your discharge summary. Insurers use this code to cross-reference the condition against your declared pre-existing diseases and the policy's exclusions.

If your condition is coded incorrectly — for instance, if your femur fracture (a fresh accident) is coded in a way that looks related to a pre-existing knee condition — you may face a rejection that has nothing to do with the actual medical situation.

Ask your treating doctor to ensure the primary diagnosis code reflects the actual acute reason for admission.

File Within the Timeline

Reimbursement claims must typically be filed within 30 days of discharge. Set a reminder the day you're discharged. If you genuinely cannot file in time due to medical reasons, document why and request a waiver in writing.

Keep Copies of Everything You Submit

Before you courier any documents to the insurer, photocopy or photograph every page. Ideally, send at least one formal submission via email so you have a digital timestamp.

Follow Up Proactively

An insurer is required to settle a claim within 30 days of receiving all documents. If you don't hear back, don't wait — call the claims helpline, follow up by email, and escalate to the grievance officer if needed.

If It Still Gets Rejected

Prevention is not foolproof. Sometimes a legitimate claim gets rejected anyway:

1. Request the rejection letter in writing, citing the exact policy clause and clause number.
2. File an internal grievance — the insurer must acknowledge within 3 days and respond within 15 days.
3. File with the Insurance Ombudsman — free, covers claims up to ₹50 lakh, and decisions are binding on the insurer.
4. File with IRDAI's IGMS at igms.irda.gov.in.
5. Consumer Forum — if the rejection involves bad faith, you may have a claim for deficiency of service under the Consumer Protection Act, 2019.

A rejection is not the end of the road. It is often just the beginning of a negotiation. The difference between policyholders who recover and those who don't is almost always information and persistence.