Glossary
Appeal
A formal request to review and reverse a denial, partial payment, or coverage decision by Medicare, a Medicare plan, TRICARE/TFL, VA, or a drug plan.
Also known as: health insurance appeal, claim appeal
Quick answer
An appeal is the formal process you use to challenge a decision that denied, reduced, or stopped coverage or payment for a service, item, or prescription. Each program — Original Medicare, Medicare Advantage, Part D, TRICARE/TFL, and VA — has its own multi-level appeal ladder with specific forms and deadlines. WPS handles TFL claim reconsiderations as the TFL contractor.
Why it matters
A meaningful share of denials are reversed on appeal — but only if filed correctly and on time. Missing a deadline usually ends the appeal regardless of the merits.
Why this matters at age 65
Retirees suddenly juggle multiple appeal systems: Medicare for Original Medicare denials, WPS for TFL secondary denials, the plan for any MA or Part D denial, and VA for VA care decisions. Knowing which system owns the appeal is the first step.
When you'll encounter it
Any time you receive a denial notice, Medicare Summary Notice (MSN), Explanation of Benefits (EOB), or coverage decision you disagree with.
Impact on Medicare
Original Medicare appeals start with a Redetermination filed with your Medicare Administrative Contractor (MAC).
Impact on TRICARE For Life
TFL appeals are filed with WPS (the TFL contractor). Higher-level appeals can escalate to the Defense Health Agency.
Impact on Medicare Advantage
MA and Part D appeals start with the plan itself (Reconsideration), then escalate to an Independent Review Entity (IRE) and beyond.
VA Healthcare considerations
VA clinical and benefit decisions follow VA's separate decision-review process — not the Medicare appeals ladder.
Military-specific context
Always identify which program issued the denial before filing — appealing a TFL denial to Medicare (or vice versa) wastes the clock.
Common misconceptions
- "Appealing is a long-shot." — Many denials are reversed at the first or second level, especially with provider documentation.
- "I can appeal whenever I want." — Each level has strict deadlines, often 60 to 120 days from the notice.
Common mistakes to avoid
- Missing the deadline printed on the notice.
- Filing with the wrong program (Medicare vs WPS vs the MA plan).
- Sending an appeal without the supporting clinical documentation that addresses the denial reason.
Real-world scenario: A retiree's MSN shows Medicare denied a follow-up MRI as 'not medically necessary.' TFL also did not pay because Medicare did not pay first.
He files a Redetermination with the MAC within 120 days, attaching the ordering physician's letter justifying medical necessity. The denial is reversed; TFL then automatically processes its secondary share.
What should I do?
- 1Read the denial notice carefully — it identifies the program, the deadline, and the address to send the appeal.
- 2Request supporting documentation from the ordering or treating provider before you file.
- 3File in writing and keep proof of mailing or electronic submission.
- 4Do not stop care you medically need — file the appeal in parallel.
Questions people commonly ask
- How many levels of Medicare appeal are there?
- Who handles TRICARE For Life appeals?
Continue learning
— suggested by the knowledge graph- Common mistakes retired military make at 65 — and how to avoid themThe most expensive errors retired service members and spouses make during the Medicare and TFL transition, and the simple fixes for each.
- How Medicare and TRICARE For Life claims are paidThe mechanics of the Medicare-to-TFL crossover system — what providers do, what WPS does, and what to do if a claim gets stuck.
- Billing ErrorsMistakes — accidental or intentional — on Medicare or TFL claims, ranging from duplicate charges to outright fraud.
- Claim AppealThe formal process for asking Medicare or TFL to reconsider a denied or underpaid claim.
- Medical Necessity AppealAn appeal arguing that a denied service, drug, or device is clinically necessary based on the treating provider's documentation.
- Quality of Care ComplaintA complaint filed with the Beneficiary and Family Centered Care Quality Improvement Organization (BFCC-QIO) about the quality of medical care you received.
- WPS Claim ReconsiderationThe first-level review of a TRICARE For Life claim decision, filed with Wisconsin Physicians Service (WPS), the TFL contractor.
- Appointment of RepresentativeA signed form (CMS-1696) that authorizes another person — family member, attorney, or advocate — to file or pursue a Medicare appeal on your behalf.
- Balance BillingThe practice of a provider billing you for the difference between their charge and what insurance approved.
- Medicare denied a service. Can I appeal?Yes. The first level for Original Medicare is a Redetermination filed with the Medicare Administrative Contractor (MAC) within 120 days of the denial notice (MSN).
- TFL denied a claim. How do I appeal?WPS handles TFL appeals. File a written reconsideration with WPS within 90 days of the denial. Include the Medicare EOB, the WPS denial, and any supporting medical records.
- What do I do if my Medicare claim is denied?Read the MSN denial reason, gather supporting records, and file a Redetermination with the Medicare Administrative Contractor within 120 days.
- Do I appeal to Medicare or to TFL?Appeal to whichever payer issued the denial. If Medicare denied, appeal Medicare. If WPS denied TFL's share, appeal to WPS.
- Can I get a faster appeal for urgent care?Yes. Both Medicare Advantage and Original Medicare allow expedited appeals when delay could jeopardize your health. Decisions come in 72 hours.
Related glossary terms
Related Official Resources
Continue learning straight from the source. Every link below goes to an official government or DoD resource.
Last reviewed January 2026 against the 2026 Medicare & You and TRICARE For Life handbooks.