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My out-of-network surgery was denied. Can it still be covered?

Sometimes, on one of three grounds: the plan had no in-network surgeon with the needed expertise within a reasonable distance (a network-gap or single-case exception), the care was emergency or was provided at an in-network facility by an out-of-network clinician (No Surprises Act protections), or the denial was really a medical-necessity decision that can be appealed on the record. The letter's stated reason tells you which argument applies.

Last reviewed Sep 11, 2026 · General information, not legal or medical advice · Apellica is not a law firm

What to do, in order

  1. Step 1

    Read the reason

    'No out-of-network benefits' is a plan-design denial; 'not medically necessary' or 'experimental' is a clinical one; 'prior authorization not obtained' is administrative. Each is appealed differently.

  2. Step 2

    Ask for a network-gap exception before the surgery if you can

    Write to the plan listing the in-network surgeons you contacted, their wait times or lack of the procedure, and ask that the out-of-network surgeon be paid at the in-network level. Plans decide these case by case; get the answer in writing.

  3. Step 3

    Check for No Surprises Act protection

    Emergency care and out-of-network clinicians at an in-network facility are covered at in-network cost-sharing and balance billing is barred, with limited notice-and-consent exceptions (CMS No Surprises rules). Elective out-of-network surgery chosen by the patient is generally not protected.

  4. Step 4

    Appeal the clinical reason on the record

    For medical-necessity or experimental denials, obtain the criteria, answer them with the surgeon's letter and the record, and use external review if the internal appeal fails.

The deadline that applies

At least 180 days to file an internal appeal on employer and ACA plans (45 CFR 147.136; 29 CFR 2560.503-1). A pre-service network-gap request has no fixed federal clock, so make it as early as possible and keep the written answer.

Calculate your date →

Documents to gather

  • The denial letter or Explanation of Benefits, every page
  • Your insurance card and the plan's summary of benefits or Summary Plan Description
  • The clinical notes and test results that support the service
  • A letter of medical necessity from the treating clinician, written to the plan's criteria
  • Names and dates of in-network surgeons contacted and what they said
  • Your plan's network-adequacy and out-of-network benefit language

Go deeper

Related questions

My plan is an HMO with no out-of-network benefit at all. Any path?

The network-gap exception and the emergency and facility-based No Surprises protections still apply. A pure elective out-of-network choice on an HMO usually does not.

Does the No Surprises Act cover a surgery I scheduled with an out-of-network surgeon?

Generally not if you chose the surgeon and signed a notice-and-consent form. It does cover ancillary clinicians you could not choose (anaesthesia, pathology, radiology) at an in-network facility.

Can I get a pre-determination first?

Yes, many plans offer a written pre-determination of medical necessity for planned surgery. Get it before the procedure; it does not guarantee payment but narrows what the plan can dispute later.

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