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Appeals2026-04-106 min read

Your Rights When Insurance Denies a Specialty Drug

Your Rights When Insurance Denies a Specialty Drug

6 minute read

A denial letter is not the final word. It is the beginning of a process you are legally entitled to use. When your insurance company denies a specialty drug, federal and state law give you specific rights to challenge that decision through multiple channels, with defined timelines and outcomes that are often binding on your insurer.

Most people who receive a denial do not know these rights exist. Less than 1 percent of people with denied claims file a formal appeal.¹ Of those who do, the outcomes are often more favorable than people expect. Understanding your rights before you give up is worth the time.

Step One: The Internal Appeal

Every health plan that covers prescription drugs is required by federal law to have an internal appeal process. When your claim is denied, you have the right to ask your insurer to review that decision again, with a fresh set of eyes.

The internal appeal is your formal request to the insurance company that their own people take another look. For this process to work in your favor, you need to submit new information: documentation that was not included in the original request, a physician letter of medical necessity that directly addresses the stated denial reason, clinical guidelines that support your treatment, or evidence of prior treatment history that the insurer did not have.

Internal appeal timelines are defined by law. For urgent (expedited) situations, your insurer must decide within 72 hours. For standard appeals, the timeline is typically 30 days if you have not yet received the drug, and 60 days if you are appealing a claim that was denied after you already received care.² State laws may impose shorter timelines for commercial plans.

You are entitled to free copies of all documentation your insurer used to make its coverage decision. Request these before you write your appeal. Seeing the specific criteria your insurer applied is essential to building a response that addresses what actually needs to be addressed.

Step Two: External Review

If your internal appeal is denied, or if your claim involves a denial based on medical necessity, experimental status, or clinical appropriateness, you have the right to an independent external review.

External review is conducted by an Independent Review Organization (IRO) that is not affiliated with your insurer. IROs are certified by accreditation organizations and operate independently. Their decisions are typically binding on the insurance company, meaning that if the IRO overturns the denial, your insurer must cover the treatment.

External review outcomes for specialty drug denials are meaningful. A 2022 Government Accountability Office analysis found that external review organizations overturned insurance company decisions in a significant proportion of cases.³

The deadline to request external review is typically 60 days after receiving the internal appeal denial. Check your denial notice for your specific deadline, and do not wait. Once that window closes, this option is gone.

External review is particularly powerful for denials based on experimental or investigational status, because IRO reviewers are medical specialists who evaluate the clinical evidence independently. Insurers that label a treatment "experimental" when clinical guidelines already support its use often lose at external review.

The Role of Your State Insurance Commissioner

Your state has an insurance regulatory agency (typically called the Department of Insurance or Division of Insurance) that oversees commercial health insurance plans. This office investigates complaints, enforces state insurance laws, and can sometimes intervene in coverage disputes.

Filing a complaint with your state insurance commissioner is not a substitute for the appeal process, but it is a parallel track worth knowing about. Complaints are documented, and a pattern of complaints against a specific insurer for a specific type of denial can trigger regulatory review. If your insurer has violated state law (for example, by failing to respond to your appeal within required timeframes, or by failing to disclose your right to external review), the insurance commissioner is the appropriate place to report that.

You can find your state insurance commissioner's contact information through the National Association of Insurance Commissioners at naic.org.

ERISA Plans vs. State-Regulated Plans: Why It Matters

This is one of the most consequential distinctions in the appeal process, and one of the least understood.

If your health insurance comes through your employer, there is a good chance your plan is governed by the Employee Retirement Income Security Act (ERISA), a federal law that preempts most state insurance regulations. This means that many of the patient protections your state has enacted — including step therapy reform laws, prior authorization timelines, and external review mandates — may not apply to you.

ERISA plans include most large employer-sponsored health plans that are self-funded (meaning the employer pays claims directly rather than purchasing a fully insured policy from an insurer). About 60 percent of workers with employer-sponsored insurance are in self-funded plans.⁴

The distinction matters in the appeal process because:

  • ERISA plan participants who exhaust internal appeals and external review may have the right to sue in federal court to recover benefits.
  • State insurance commissioner complaints typically have no authority over ERISA plans.
  • Some state-mandated coverage requirements (like coverage for certain treatments) do not apply to ERISA plans.
  • To find out whether your plan is an ERISA plan, look at your Summary Plan Description (the plan document your employer is required to provide). If it is a self-funded plan, the document will typically state that it is governed by ERISA.

    Timelines to Know

    Missing a deadline can forfeit a right permanently. Here are the key timelines for the appeal process:

    | Stage | Standard Timeline |

    |---|---|

    | File internal appeal | Within 180 days of denial (check your plan) |

    | Internal appeal decision (urgent) | 72 hours |

    | Internal appeal decision (standard) | 30-60 days |

    | File external review request | Within 60 days of internal appeal denial |

    | External review decision | Within 45 days (4 days if expedited) |

    What This Means for You

    A denial letter is the opening of a process, not the closing of one. The appeal system is designed to be used, and the documentation and structure you bring to it determines whether it works in your favor.

    Ellen can help you understand which rights apply to your situation and how to move through the appeal process step by step. Start here →

    Frequently Asked Questions

    What is the difference between an internal appeal and a grievance?

    A grievance is a complaint about how you were treated or how a service was delivered. An appeal is a formal request to overturn a coverage or payment denial. For denied specialty drugs, you are filing an appeal, not a grievance, though some insurers use the terms interchangeably in their communications.

    Can I use all three channels (appeal, external review, state complaint) at the same time?

    You generally need to exhaust your internal appeal before you can access external review, but you can file a state insurance commissioner complaint at any time. If your plan is subject to state regulation (not an ERISA self-funded plan), the state complaint and the internal appeal process can run in parallel.

    What if I cannot afford to wait for the appeal process while my health deteriorates?

    Request expedited review. If your prescribing physician certifies in writing that a standard review timeline would seriously jeopardize your health or life, your insurer is required to process your appeal within 72 hours. This applies to both internal appeals and external review requests.

    Sources:

  • Kaiser Family Foundation. "Consumer Appeals of Health Insurance Denials." KFF Health Policy, 2023.
  • 45 CFR Part 147 (ACA Internal Appeal Requirements), as amended.
  • Government Accountability Office. "Private Health Insurance: Results of External Review Programs." GAO, 2022.
  • Kaiser Family Foundation. "Employer Health Benefits Survey." KFF, 2023.
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