How to appeal a UnitedHealthcare radiation oncology — proton, sbrt, brachytherapy, imrt, iort denial

The framework that applies to your appeal

Federal law gives you the right to a full and fair internal appeal, then an external review by an independent third party.

UnitedHealthcare-specific note: UHC's parent UnitedHealth Group owns Optum (PBM Optum Rx) and Surest. Surest plans have different cost-sharing rules. State complaints flow to state insurance department + DOL/EBSA for self-funded.

What UnitedHealthcare's policy requires for radiation oncology — proton, sbrt, brachytherapy, imrt, iort

Cited policy: UHC Commercial Medical Policy: Proton Beam Radiation Therapy

Covered for ASTRO Model Policy Group 1 indications: pediatric solid tumors, ocular tumors, chordoma / chondrosarcoma at skull-base or paraspinal, hepatocellular carcinoma when liver constraints cannot otherwise be met, re-irradiation in previously treated fields, AVM, and selected head and neck. Group 2 indications require comparative dosimetry showing photon plan violates QUANTEC OAR constraints.

How UnitedHealthcare denies radiation oncology — proton, sbrt, brachytherapy, imrt, iort — and how to counter it

Where UnitedHealthcare pushes back: 1) Adult diagnosis classified as 'investigational' outside Group 1 list; 2) No comparative dosimetry submitted; 3) Photon IMRT alleged to be sufficient.

Counter-arguments that hold up: If diagnosis fits ASTRO Model Policy Group 1, cite policy section verbatim and stop. For Group 2, submit photon-vs-proton plan with DVH overlay demonstrating photon plan exceeds heart mean, LAD, lung V20, contralateral breast, hippocampus, brainstem, optic apparatus, cochlea, or spinal cord re-RT thresholds — proton meets them. Cite Bekelman JAMA 2022 (esophagus) and PARTIQoL (prostate) where on-point. Reference PORO registry for pediatric.

What UnitedHealthcare typically denies for radiation oncology — proton, sbrt, brachytherapy, imrt, iort

Across UnitedHealthcare's commercial and Medicare books, denials cluster around a small number of patterns. For radiation oncology — proton, sbrt, brachytherapy, imrt, iort, expect:

• GLP-1 weight-loss exclusion
• Out-of-network reduction citing UCR
• Step therapy on biologics
• Prior auth denied for advanced imaging
• Quantity limits on specialty drugs

Treatments most often denied in this category

These are the radiation oncology — proton, sbrt, brachytherapy, imrt, iort treatments most often flagged for prior auth, step therapy, or medical necessity review:

• Proton beam therapy
• SBRT prostate
• SBRT lung/liver/spine
• SRS brain
• LDR brachytherapy
• HDR brachytherapy

How to submit the appeal to UnitedHealthcare

1. Read the denial letter — note the exact denial reason code and the appeal deadline (180 days from the date on the letter).
2. Gather supporting documentation: physician letter of medical necessity, relevant clinical notes, peer-reviewed citations supporting the treatment for your indication, and the policy or coverage document UnitedHealthcare cited in the denial.
3. File the appeal through UnitedHealthcare's portal (members: https://www.myuhc.com ; providers: https://www.uhcprovider.com). Standard decision returns within 30 days; expedited urgent appeals return within 72 hours.
4. If denied again, request external review by an independent reviewer within 4 months of the final internal denial. In MN, the state insurance department coordinates external review for fully-insured plans; ERISA self-funded plans use a federal external review through DOL/EBSA.

Clinician or prior-auth team handling this on the practice side? See UnitedHealthcare's prior-authorization criteria by drug: UnitedHealthcare PA criteria on ApprovalHelp.