TRICARE Appeal: Definition and How to File | TRICARE.com
A TRICARE appeal is a formal request to review a denied claim or benefit. Learn how to challenge denials from Humana Military or TriWest.
TRICARE Appeal: Definition and How to File
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## Definition A TRICARE appeal is a formal request to have a contractor or the Defense Health Agency (DHA) review a decision they made regarding your healthcare benefits, coverage, or claim payments.
## What it means in practice If TRICARE denies a request for a specific medical procedure, refuses to pay a claim, or determines you are no longer eligible for a certain benefit, you have the legal right to challenge that decision. This process is not a simple phone call to customer service; it is a structured administrative procedure with strict deadlines (usually 90 days from the date of the denial letter).
There are generally three types of appeals: medical necessity (denials based on whether the care was appropriate), factual (disputes over eligibility or "allowable charges"), and pharmacy (discussions regarding the TRICARE formulary). For example, if you are enrolled in TRICARE Prime and your regional contractor—Humana Military in the East or TriWest Healthcare Alliance in the West—denies a referral for an out-of-network specialist, you would file an appeal to prove that the care is medically necessary and unavailable within the network.
During an appeal, an independent reviewer who was not involved in the initial denial looks at the evidence. While there is no fee to file an appeal, the financial stakes can be high. If you proceed with a treatment that TRICARE has denied and lose your appeal, you are responsible for 100% of the costs. Based on 2026 rates, failing to secure an authorization through the appeal process for a major surgery could result in tens of thousands of dollars in out-of-pocket expenses, rather than just your standard catastrophic cap or copayment.
## Related terms * **Grievance:** A formal written complaint about the quality of care or service received, rather than a dispute over a specific claim denial. * **Medically Necessary:** Healthcare services or supplies needed to prevent, diagnose, or treat an illness or injury that meet accepted standards of medicine. * **Authorization:** A review of a requested health care service by your regional contractor (Humana or TriWest) to determine if it is covered. * **Allowable Charge:** The maximum amount TRICARE will pay for a covered health care service or supply. * **Explanation of Benefits (EOB):** A statement sent by TRICARE after you receive care, detailing what was covered, what was denied, and how much you may owe.
## Sources * TRICARE.mil: Filing an Appeal - https://www.tricare.mil/appeals * Humana Military: Disputes and Appeals - https://www.humanamilitary.com/beneficiary/claims/disputes-appeals * TriWest Healthcare Alliance: TRICARE West Region Appeals - https://www.triwest.com/en/beneficiary/claims/appeals/