How to appeal a UnitedHealthcare continuous glucose monitors & insulin pumps 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 continuous glucose monitors & insulin pumps

Cited policy: UHC Continuous Glucose Monitoring and Insulin Delivery for Managing Diabetes

Diabetes diagnosis + insulin therapy (any regimen as of 2022 update); for non-insulin T2DM, requires history of problematic hypoglycemia.

How UnitedHealthcare denies continuous glucose monitors & insulin pumps — and how to counter it

Where UnitedHealthcare pushes back: 1) 'Member is not on intensive insulin therapy / not on MDI'; 2) 'Documentation of fingerstick frequency 4+/day not provided'; 3) 'CGM is convenience / lifestyle'; 4) Pump replacement before warranty.

Counter-arguments that hold up: ADA 2025 Standard 7 (Level A T1DM, Level A/B T2DM on insulin). UHC's own 2022 policy update removed the 4-fingerstick requirement matching CMS. MOBILE (Martens JAMA 2021) + IMMEDIATE (Aronson Diabetes Care 2023) for non-insulin T2. 42 CFR §422.101(b) parity for MA plans. Pump replacement: document mechanical failure or therapeutic step-up to AID.

What UnitedHealthcare typically denies for continuous glucose monitors & insulin pumps

Across UnitedHealthcare's commercial and Medicare books, denials cluster around a small number of patterns. For continuous glucose monitors & insulin pumps, 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 continuous glucose monitors & insulin pumps treatments most often flagged for prior auth, step therapy, or medical necessity review:

• Dexcom G7
• Dexcom G6
• Libre 3 Plus
• Libre 2 Plus
• Eversense 365
• Tandem t:slim X2

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.