How do I dispute a claim with UnitedHealthcare?

You can submit a dispute or appeal for a denied claim through the UnitedHealthcare Member Service Request Form.

Steps to Dispute a Claim

• Review the Denial Letter: Read your Explanation of Benefits (EOB) or denial notice to find the exact reason for the denial and the specific deadline to file (often 60 to 180 days depending on your plan type).
• Gather Documents: Collect your member ID, the processed claim number or pre-service reference number, dates of service, and any supporting medical records or doctor's notes.
• File an Internal Appeal: Submit your request online using the member portal/form or by mailing the paperwork listed on your denial notice.
• Request an External Review: If your internal appeal is denied, you have the right to ask an independent third party to review the decision.

UnitedHealthcare denies claims due to standard administrative reasons, strict medical necessity definitions, and controversial automated or algorithmic decision-making tools.

For official details on how the company evaluates claims and handles disputes, read the UnitedHealthcare Claims Denials Guide.

Administrative and Routine Reasons

• Missing or incorrect information: Errors in coding, missing medical records, or late submissions.
• Eligibility and coverage limits: Care received when out-of-network, duplicate submissions, or services explicitly excluded by a specific insurance plan design.

Medical Necessity and Clinical Criteria

• Not deemed medically necessary: Insurers often deny coverage for treatments, specialized drugs, or extended stays if they determine the care does not strictly meet their internal clinical guidelines.
• Post-acute care restrictions: High denial rates have been heavily documented in Medicare Advantage and skilled nursing or rehab placements, where care is cut short or refused during recovery.

Controversies and Automation

• Algorithmic and AI tools: Lawsuits and regulatory investigations allege that UnitedHealthcare and its subsidiaries (such as naviHealth) have utilized automated decision models or artificial intelligence algorithms to rapidly screen and deny claims en masse, relying on low appeal rates by patients.
• Profit incentives: Senate reports and investigations have criticized major insurers for using strict denial thresholds on expensive care to lower overall payout costs.

UnitedHealthcare's reported denial rate ranges from under 2% to over 30%, depending on the data source, the type of insurance plan, and how "denial" is calculated.

Official Company Figures

• Initial and Final Rates: UnitedHealthcare states that it initially approves 90% of submitted claims and reaches a 98% final approval rate for eligible, timely, and complete claims after reviews.
• Company Stated Denials: Executives have testified that actual final unpaid or rejected claim rates sit at less than 2% of the total volume processed.

External and Marketplace Data

• ACA Marketplace: Public health insurance exchange data from federal reports shows ValuePenguin analysis indicating denial rates for individual Affordable Care Act (ACA) marketplace plans hovered around 32% to 33%, though more recent data for 2024 plans put UHC's marketplace denial rate closer to 20% (near the national average).
• Medicare Advantage Prior Authorizations: Federal data and reports note that UHC's denial rate for specific Medicare Advantage prior authorizations or post-acute care services ranges widely from 12.8% up to over 50% for specialized inpatient/rehabilitation care.
• Disputes: Health systems and independent providers often report much higher local denial rates (sometimes exceeding 50% for specific facilities or complex procedures), which insurers frequently dispute as misrepresenting duplicate or ineligible submissions.

UnitedHealthcare's appeal time limit depends on your specific plan type, but it is commonly 60 to 65 calendar days from the date of the adverse determination or denial notice.

Appeal Deadlines by Plan Type

• Commercial Plans: Commonly cited as 65 calendar days from the denial date, though UHC often defers the exact figure to your specific contract or Participation Agreement.
• Medicare Advantage (MA): 60 calendar days from the date of the initial denial notice, which follows rules mandated by the Centers for Medicare & Medicaid Services (CMS).
• Medicaid / Community Plan: Typically 60 to 90 calendar days, but varies heavily depending on state-specific regulations.

Key Rules to Keep in Mind

• Reconsideration vs. Appeal: For many commercial and provider claims, UHC requires a multi-step process where you must complete the initial claim reconsideration and the formal appeal within a combined 12-month window from the original remittance or EOB date.
• Contract Specifics: Because UHC does not publish one universal commercial deadline, always check your specific UHC Provider Portal profile or contract to confirm the exact timeline.

If UnitedHealthcare denies your claim, you should read your Explanation of Benefits (EOB) to find the reason for the denial and then file an appeal within the allowed deadline.

Immediate Steps to Take

• Read your EOB: Locate the specific denial code or reason (such as missing prior authorization, coding error, or medical necessity) on your UnitedHealthcare Claims Information.
• Call customer service: Speak with a representative by calling the phone number listed on the back of your insurance card to check if it was a simple billing or paperwork mistake.
• Contact your doctor: Ask your healthcare provider's billing office to verify if they submitted incorrect codes or if they can fix and resubmit the claim.

How to File an Appeal

• Check the timeline: Most commercial plans give you up to 180 days from the date of the denial notice to file an internal appeal, while Medicare or specific plans may have different windows (like 60 or 65 days).
• Submit in writing: Write a formal appeal letter and include supporting documents like medical records, doctor's notes, and copies of your EOB. You can submit forms online through your member account or mail/fax them as instructed in your denial letter.
• Request an external review: If your internal appeal is denied and the dispute is over clinical reasons (like medical necessity), you can ask for an independent third-party review.