UnitedHealthcare Denial Appeals Process
UnitedHealthcare Denial Appeals: Overview
UnitedHealthcare offers two-level appeals for denied claims. File reconsideration first within 12 months of the EOB date with new or additional clinical information. Reconsideration resolves within 5 business days. If reconsideration is denied, escalate to formal appeal. Formal appeals include peer-reviewed evidence and physician correspondence and receive a decision within 30 days for routine requests and 72 hours for urgent cases.
Key Requirements
- Deny notice (EOB) with CARC code and explanation of denial reason.
- Original claim details (claim number, date of service, procedure code, submitted amount).
- Reconsideration request must include new clinical information, test results, or imaging not in original submission.
- Formal appeal requires letter of medical necessity signed by treating physician or clinical staff.
- Peer-reviewed medical literature supporting medical necessity (abstracts, full articles, clinical guidelines).
- Statement of appeal (written explanation addressing denial reason and clinical justification).
Timeline & Process
- Receive denial: EOB sent within 30–45 days of claim submission. Review CARC code and reason.
- File reconsideration: Submit request with new evidence within 12 months of EOB. Include letter addressing denial reason. UnitedHealthcare responds within 5 business days.
- If reconsideration denied, file formal appeal: Send appeal letter, medical necessity statement, and peer-reviewed evidence. Process takes 30 days for routine appeal, 72 hours for urgent.
- Receive appeal decision: UnitedHealthcare sends appeal determination with explanation. If upheld, you may request independent external review if applicable under state law.
Appeal Contact & Submission Methods
| Contact Method | Details |
|---|---|
| Secure provider portal | Log into uhcprovider.com and submit appeal within "Claims" or "Appeals" section. Fastest method. |
| Send to UnitedHealthcare Provider Services Appeals Department (address on EOB). Include claim number, patient ID, appeal letter. | |
| Fax | Fax appeal to UnitedHealthcare Appeals (fax number on EOB). Use cover sheet with claim and patient details. |
| Phone | Call UnitedHealthcare Provider Services line (on EOB) to file verbally and receive confirmation number. |
Appeal Documentation Checklist
Include the original EOB, copy of the denied claim, letter of medical necessity signed by provider, clinical documentation (imaging, test results, clinical notes) supporting necessity, peer-reviewed literature or clinical guidelines supporting the service, and a statement addressing the specific denial reason. Sign all correspondence with provider credentials and NPI.
Common Questions
What is the difference between reconsideration and formal appeal?
Reconsideration is informal and requires new clinical evidence. It resolves in 5 business days. Formal appeal is more detailed, includes physician attestation and peer-reviewed literature, and takes 30 days (or 72 hours for urgent).
Can I file both reconsideration and appeal together?
No. File reconsideration first. If denied, then file formal appeal. File reconsideration and appeal separately within the 12-month window from EOB date.
What happens if my appeal is denied?
Check your state's regulations for independent external review eligibility. Some states allow external review of medical necessity denials after internal appeal exhaustion.
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This reference is for informational purposes. Payer policies change frequently. Always verify against UnitedHealthcare's current provider documentation. Last updated: 2026-03-16.