Coverage Exception denied as duplicate or overlapping therapy by Blue Cross Blue Shield?

Blue Cross Blue Shield's specific coverage criteria for coverage exception are defined in its own published medical/coverage policy and the FDA-approved prescribing label. A successful appeal documents that your medical records satisfy each criterion those sources list — confirmed diagnosis, any required prior treatments (with dates and outcomes), and clinical severity. If the exact criteria weren't included with your denial, request them in writing; your appeal then maps each requirement to the matching fact in your chart.

## Why BCBS Denied Your Coverage Exception as Duplicate Therapy

A duplicate-therapy denial means BCBS has determined that another treatment already on your plan formulary — or already approved for you — serves the same clinical purpose as the exception you are requesting. These denials are common when a plan has a preferred agent in the same drug class and a member's prescriber has requested an alternative outside that class.

This type of denial is frequently worth appealing because "same class" does not mean "same outcome for your specific patient." Individual patients can have documented intolerances, contraindications, or prior treatment failures that make the "duplicate" option genuinely non-equivalent for them.

## Your Federal Appeal Rights

• Internal appeal (ERISA §503 / ACA §2719): You are entitled to a full-and-fair internal review. Submit your appeal in writing within the timeframe shown on your denial notice — typically 180 days.
• External review (ACA §2719): After exhausting the internal process (or if BCBS violates a deadline), you may escalate to an independent review organization (IRO). The external-review request window is generally up to four months after final internal denial. The IRO decision is binding on the plan.
• Expedited review: If waiting for a standard review would seriously jeopardize your health, you may request an expedited internal appeal (decision typically within 72 hours) and a simultaneous or subsequent expedited external review.

## How to Build Your Appeal

1. Document why the alternatives are not equivalent for you. Obtain a detailed medical-necessity letter from your prescriber that explains — using your specific chart entries — why each plan-preferred alternative is unsuitable. Acceptable reasons include documented adverse reactions, contraindications noted in your medical record, or a prior therapeutic failure with dates and objective outcomes.

2. Gather your prior-treatment history. Collect pharmacy records, visit notes, and lab or imaging results that reflect any prior use of the preferred agents, including when you tried them, what happened, and why your prescriber discontinued or avoided them.

3. Map criteria from the insurer's own policy. Request a copy of BCBS's published coverage/medical policy for coverage exceptions and duplicate-therapy determinations. Copy each listed requirement into your appeal and answer each one with the exact supporting chart fact. Do not rely on generic arguments — criterion-by-criterion responses are far more persuasive than narrative letters alone.

4. Reference applicable clinical guidelines. Your prescriber's letter should cite the relevant specialty society guidelines (e.g., applicable ACC, ADA, NCCN, or other guideline) that support individualized prescribing decisions when a patient has not tolerated or responded to a class alternative. Reference the guideline organization generically; do not assert specific numerical thresholds.

## Timeline to Keep in Mind

• Day 1: Submit internal appeal with all supporting documents.
• ~30 days: BCBS must issue a decision on a standard internal appeal.
• After denial or deadline miss: File for external review promptly — the four-month window moves quickly.

DenialHelp can help you structure a criterion-by-criterion appeal letter using your actual records. Upload your denial notice and relevant chart notes to get started.