Most health insurance disputes in India come from a short list of causes: a condition that was not disclosed in the proposal form, a claim made during a waiting period, a hospitalisation the insurer says was not medically necessary or was only for investigation, non-payable items, proportionate deductions from a room upgrade, late intimation, or missing documents. This group explains those failure points before you need to claim.
The guide to health insurance claim rejection reasons is the starting point and links to every guide here: the cashless process and the IRDAI one-hour and three-hour timelines, the documents for a reimbursement claim, why a settled amount can be lower than the bill, how the five-year moratorium protects long-standing policyholders, the escalation route from the insurer's grievance officer to Bima Bharosa, the Insurance Ombudsman and the consumer commissions, and how to verify a policy and an insurer on official portals.
This site gives general information about insurance, not medical, legal or tax advice. For a disputed claim of significant value, consider a consumer-law advocate or a licensed insurance adviser.