erisa">UnitedHealthcare Appeals Process: Complete 3-Level Guide (Internal, External, ERISA)

UnitedHealthcare covers more than 50 million Americans, and its appeals process is one the most important — and most underused — consumer protection tools available to members. Whether your claim was denied for medical necessity, Prior Authorization Denied: How to Appeal" class="auto-link">prior authorization, experimental treatment, or any other reason, you have the legal right to challenge that decision through UHC's internal appeals process and, if necessary, through external independent review. This guide walks through every level.

Understanding Your Right to Appeal

Federal law — the Affordable Care Act, ERISA, and various state laws — gives you the right to appeal any claim denial or adverse benefit determination. This right exists regardless of the reason for denial and regardless of your plan type. An "adverse benefit determination" includes:

• Denial of a claim for benefits
• Denial of a prior authorization request
• Determination that a service is "not medically necessary"
• Determination that a service is "experimental or investigational"
• Rescission of coverage
• Failure to provide benefits in a timely manner (which can be treated as a denial)

Every denial must come with a written notice that states the reason for denial, the clinical criteria used, and instructions for how to appeal. If UHC's denial letter does not include this information, you can demand it and the clock on your appeal deadline may not have started.

Level 1 Internal Appeal

What it is: The first formal step in UHC's appeals process. Your case is reviewed by a UHC/Optum medical reviewer who was not involved in the original denial decision.

Deadline to file: Usually 60 to 180 days from the date of the denial notice, depending on your plan type. Employer plans: typically 180 days. ACA marketplace plans: 60 to 180 days. Medicare Advantage: 60 days. File as early as possible — do not wait until the deadline.

How to submit:

• Online: myuhc.com (member portal — log in and navigate to "Appeals and Grievances")
• Phone: 1-800-721-4095 (initiate verbally, but always follow up in writing)
• Mail: Send to the address printed on your denial letter. If no address is listed, request it from UHC Member Services.
• Fax: The fax number for appeals is typically listed on the denial letter

What to include:

• Your written appeal letter stating why the denial was incorrect
• A copy of the denial letter
• Your doctor's Letter of Medical Necessity specifically addressing the denial criteria
• Supporting clinical records (lab results, imaging, progress notes, operative reports)
• Any published clinical guidelines, peer-reviewed research, or clinical policy documents supporting your case
• Any other evidence your physician believes supports medical necessity

Timeline: UHC must respond to a Level 1 appeal within:

• 30 days for pre-service (prior authorization) denials
• 60 days for post-service (after-care) denials
• 72 hours for urgent/expedited appeals (24 hours for certain urgent concurrent reviews)

Expedited review: If you have an urgent situation — waiting for the standard timeline would seriously jeopardize your health — you can request an expedited appeal. Document the urgency in writing. Your physician should confirm the urgency. UHC must respond within 72 hours.

Level 2 Internal Appeal

What it is: A second internal review by a different UHC/Optum reviewer who was not involved in Level 1. This level exists under most UHC employer plans and ACA plans. Medicare Advantage has a different second-level process.

When it's available: After Level 1 is denied. Some plans do not have a mandatory second internal level; for those plans, you may proceed directly to external review after Level 1 denial.

How to submit: Same process as Level 1 — use myuhc.com or mail/fax to the address on the Level 1 denial letter. Your Level 1 denial notice will include instructions for Level 2.

What to include: Everything from Level 1, plus any new evidence, updated medical records, or additional physician letters that address the Level 1 denial rationale. Address the Level 1 denial specifically — your Level 2 appeal should explain why the Level 1 reviewer's reasoning was incorrect.

Timeline: Similar to Level 1 — typically 30 to 60 days for standard appeals.

iro-review">External Independent Review (IRO Review)

What it is: After exhausting internal appeals, you can request review by an Independent Review Organization (IRO) — a neutral third-party organization with no financial relationship with UHC. UHC uses URAC-accredited IROs. The IRO's decision is binding on UHC — if the IRO reverses the denial, UHC must provide coverage.

When to request: After your final internal appeal is denied, or if UHC takes too long to respond. In most states and under ACA rules, you can also request external review simultaneously with a second internal appeal.

How to request:

• Through UHC: Request external review in writing through the member portal or the address on your denial letter. UHC must facilitate the assignment of an IRO.
• Through your state: In some states, external review is facilitated by the state insurance department. Check with your state's insurance commissioner for state-regulated plans.

Timeline: The IRO must complete its review within 45 days for standard reviews and 72 hours for expedited reviews.

What external reviewers evaluate: IRO reviewers are not bound by UHC's internal policies or clinical criteria. They evaluate medical necessity and coverage decisions based on generally accepted clinical standards. This independence is why external review reversal rates are meaningful.

ERISA Plans: DOL Complaint and Litigation

If your plan is an ERISA-governed employer plan, you have federal rights beyond the internal/external review process:

DOL EBSA Complaint: File a complaint with the U.S. Department of Labor's Employee Benefits Security Administration (EBSA) at dol.gov/ebsa or call 1-866-444-3272. EBSA investigates violations of ERISA claims procedure regulations and can intervene with plan administrators.

Federal Lawsuit: After exhausting all required appeals, ERISA plan members can sue UHC in federal court for benefits. ERISA litigation is complex and generally requires an attorney, but it is available when other remedies have failed. Courts review ERISA benefit denials under either a de novo or abuse of discretion standard depending on plan language.

State-Regulated Plans: State Insurance Department Complaints

For fully-insured plans (individual/family plans, fully-insured small group plans), file a complaint with your state insurance department at any time during the process. State regulators can investigate UHC for violations of state insurance law and can require UHC to respond to your complaint, often accelerating resolution.

Find your state insurance department at naic.org or search "[your state] department of insurance."

Medicare Advantage: Additional Appeal Levels

For UHC Medicare Advantage members, the appeals process has additional levels after external review:

1. Administrative Law Judge (ALJ) Hearing — if the amount at issue meets the threshold
2. Medicare Appeals Council review
3. Federal district court (if threshold is met)

The Medicare appeals process has strict timelines and amounts-in-controversy requirements at higher levels.

Tips for the Strongest UHC Appeal

• Always appeal in writing even if you also call; written appeals create a paper trail
• Keep copies of everything you submit and receive from UHC
• Request acknowledgment of appeal receipt from UHC in writing
• Track deadlines: UHC's failure to respond within required timeframes is itself grounds for escalation
• Include your member ID and claim number on every document
• Request all clinical criteria UHC used to deny your claim — you are entitled to these documents

Fight Back With ClaimBack

Navigating UHC's multi-level appeals process is complex, but you do not have to do it alone. ClaimBack helps you build the right documentation for each level of UHC's process and track your appeal from start to resolution.

Start your UHC appeal with ClaimBack

Related Reading

• How to Write an Insurance Appeal Letter
• Internal vs External Insurance Appeal
• Common Reasons Insurance Claims Are Denied