Why would a healthcare claim be denied?


Editorial team Published on

Health insurance claims are typically rejected or denied due to administrative errors, missing paperwork, or policy limits.

Common Claim Rejection Reasons

  • Lack of Medical Necessity: The insurer decides the treatment, test, or service is not clinically required under their guidelines.
  • Missing Prior Authorization: The procedure or medication required approval from the insurance company before you received it.
  • Billing and Coding Errors: Incorrect or mistyped medical codes on the claim form cause an automatic rejection.
  • Out-of-Network Providers: The doctor or facility is not part of your health plan's approved network, except in certain emergency situations.
  • Untimely Filing: The healthcare provider or patient submitted the claim past the insurance company's strict deadline.
  • Policy Exclusions: The specific treatment or condition is explicitly not covered by your plan (such as certain cosmetic procedures).
  • Non-Disclosure of Pre-Existing Conditions: Important health history or pre-existing illnesses were left off the original application.
  • Waiting Period Restrictions: The claim was filed for a condition subject to a waiting period that has not yet expired.
  • Lapsed Policy: The health insurance coverage was inactive because of missed premium payments.

What You Can Do

  1. Review the Explanation of Benefits (EOB) or denial letter to find the exact reason for the rejection.
  2. Contact your provider's billing office to check for simple coding or paperwork mistakes that can be resubmitted.
  3. File an internal appeal directly with your health plan by providing extra medical records or a letter of medical necessity from your doctor. You can learn more about the formal steps from the Health Insurance Resource Guide.