Insurance Claim Cannot Be Denied on Mere Suspicion of Pre-Existing Disease: Delhi Consumer Commission

The Delhi State Consumer Disputes Redressal Commission has dismissed an appeal filed by Religare Health Insurance Co. Ltd., holding that an insurance claim cannot be repudiated merely on suspicion of a pre-existing disease in the absence of cogent medical evidence. The order, passed in April 2026, reinforces a principle that has been developing across consumer forums and courts in India: that insurance companies bear the burden of proving that a disease was pre-existing, and that mere suspicion, inference, or post-hoc medical opinion is insufficient to deny a legitimate claim. The decision is significant for policyholders who have faced claim rejections based on vague or unsubstantiated pre-existing disease allegations.

What Is a Pre-Existing Disease Under Insurance Law

Most health insurance policies in India contain a pre-existing disease exclusion clause. Under the Insurance Regulatory and Development Authority of India (IRDAI) guidelines, a pre-existing disease is defined as any condition, ailment, injury, or disease that is diagnosed by a physician within 48 months prior to the effective date of the policy, or for which medical advice or treatment was recommended by or received from a physician within 48 months prior to the policy's effective date. The standard waiting period for pre-existing diseases under most health insurance policies is 48 months (four years), after which the exclusion lapses and claims related to those conditions become payable. The critical question in disputes is whether the disease actually existed before the policy was taken, or whether the insurer is retrospectively classifying a condition as pre-existing based on the nature of the illness rather than documented medical history.

The Burden of Proof: Insurer Must Prove, Not Assume

The Delhi Consumer Commission's ruling reinforces a well-established principle: the burden of proving that a disease was pre-existing rests on the insurance company, not on the policyholder. An insurer that rejects a claim on the ground of pre-existing disease must produce cogent medical evidence showing that the policyholder was diagnosed with, or received treatment for, the condition before the policy was taken. This evidence typically includes pre-policy medical records, hospital admission records, diagnostic reports, or prescriptions from the relevant period. What is not sufficient is a retrospective medical opinion prepared after the claim is filed, suggesting that the disease must have existed earlier based on its clinical characteristics. The distinction matters because many chronic conditions, such as diabetes, hypertension, and cardiac disease, develop gradually and may only be diagnosed at the time of a medical event. The mere fact that a disease is chronic does not automatically mean it was pre-existing.

IRDAI Guidelines on Claim Settlement

The IRDAI has issued multiple circulars and guidelines addressing the settlement of health insurance claims. The Protection of Policyholders' Interests Regulations require insurers to settle or reject claims within 30 days of receiving all necessary documents. Where an investigation is required, the period extends to 45 days, and in complex cases involving fraud investigation, up to 90 days. Importantly, the IRDAI has directed insurers not to reject claims on technical or frivolous grounds and to provide clear, specific reasons for any rejection. A vague rejection citing pre-existing disease without specifying the condition, the evidence, and the policy clause relied upon is inconsistent with these guidelines. The IRDAI's Grievance Redressal Mechanism provides an additional avenue for policyholders whose claims are wrongly rejected. Complaints can be filed with the IRDAI's Integrated Grievance Management System (IGMS), and if unresolved, escalated to the Insurance Ombudsman.

Consumer Court Jurisdiction and Remedies

Health insurance claim disputes fall squarely within the jurisdiction of consumer courts under the Consumer Protection Act, 2019. District Consumer Disputes Redressal Commissions can hear claims up to Rs 50 lakhs. State Commissions hear claims between Rs 50 lakhs and Rs 2 crore, and the National Consumer Disputes Redressal Commission (NCDRC) handles claims above Rs 2 crore. The limitation period for filing a consumer complaint is two years from the date of the cause of action, which in insurance disputes is typically the date of claim rejection. Consumer courts can award the claim amount, interest, compensation for mental agony and harassment, and litigation costs. In cases where the insurer's rejection is found to be arbitrary or in bad faith, courts have awarded punitive damages as well. The consumer court route is faster and less expensive than civil litigation, making it the preferred forum for insurance disputes.

What Policyholders Should Know

If a health insurance claim is rejected on the ground of pre-existing disease, the policyholder should request a written rejection letter specifying the exact condition alleged to be pre-existing, the evidence the insurer relies on, and the policy clause invoked. If the rejection is based on suspicion rather than documented medical evidence, the policyholder has strong grounds to challenge it. The first step is the insurer's internal grievance mechanism, followed by the IRDAI IGMS portal, the Insurance Ombudsman, and finally the consumer court. Maintaining comprehensive medical records, including prescriptions, diagnostic reports, and hospitalisation records, both before and after taking an insurance policy, is the single most important step a policyholder can take to protect themselves against wrongful pre-existing disease rejections. The Delhi Consumer Commission's ruling confirms that the law does not permit insurers to deny claims based on conjecture.