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Appeal outcomes · California IMR · Pharmacy

Anti-virals denials: 81.4% overturned by independent reviewers

In 1,351 California IMR decisions from 2003 to 2026, reviewers overturned the plan 1,100 times (81.4%). In the last five years: 64.0% of 25. Denials reach IMR only when a member appeals all the way; read the caveats below before generalising.

By diagnosis

Diagnosis categoryDecisionsOverturnedLast 5 years
Infectious Disease1,31082.6%70.0% of 20
Respiratory System1258.3%50.0% of 2
Digestive System/ GI1060.0%100.0% of 1
Immuno Disorders616.7%

By year (last five)

YearDecisionsOverturned
2021862.5%
2022333.3%
2023366.7%
2024785.7%
2025366.7%
202610.0%

What the findings mention

What the findings mentionDecisionsOverturnedAll decisions here
Guidelines or criteria citedThe findings cite guidelines, criteria or a standard of care.75587.0%81.4%
Published evidence citedThe findings refer to peer-reviewed or published evidence.20980.9%81.4%
Step therapy or fail-firstThe findings mention a fail-first requirement.8389.2%81.4%
Prior therapies failedThe findings mention treatments that were tried without adequate response.7865.4%81.4%
Alternatives contraindicatedThe findings mention a contraindication to the plan's preferred option.6341.3%81.4%
Records did not supportThe findings say the documentation did not show what was needed (usually an upheld denial).4717.0%81.4%
FDA approval or off-label use discussedThe findings discuss the FDA label status of the treatment.4170.7%81.4%
Urgent or emergencyThe findings mention urgency.1656.3%81.4%

Keyword matches on the reviewer’s findings, not causes. A tag that appears mostly in overturned decisions is worth documenting in an appeal; it is not a guarantee.

From recent overturned decisions

The physician reviewer found that a patient has requested authorization and coverage for Vemlidy. Per the medical records, the patient has a diagnosis of chronic hepatitis B. The American Association for the Study of Liver Disease (AASLD) guidelines for the treatment of hepatitis B recommend entecavir and tenofovir. Given that guidelines and current medical literature support the efficacy of Vemlidy …

Reviewer findings, overturned decision · Medical Necessity · 2025 · Source: California DMHC IMR determinations (CHHS Open Data), reference MN25-46082

The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested authorization and coverage for Epclusa. According to the most recent joint guidelines issued by the American Association for the Study of Liver Diseases (AASLD) and the Infectious Diseases Society of America (IDSA), all patients with chronic hepatitis C should be treated except those with limited life …

Reviewer findings, overturned decision · Medical Necessity · 2025 · Source: California DMHC IMR determinations (CHHS Open Data), reference MN25-43569

The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient with hepatitis B has requested authorization and coverage for Vemlidy. Per the medical records, given that the patient has been stabilized on Vemlidy, with a suppressed viral load, a change in therapy to a potentially less effective medication, such as entecavir, or a medication with more renal toxicity, …

Reviewer findings, overturned decision · Medical Necessity · 2024 · Source: California DMHC IMR determinations (CHHS Open Data), reference MN24-43073
Read these numbers carefully
  • California only: these are decisions by independent reviewers under California's IMR program (plans regulated by the Department of Managed Health Care). Other states and self-funded employer plans use different reviewers and rules.
  • Selection: only denials that a member took all the way to IMR appear. Most denials are never appealed, and the ones that reach an external reviewer are not a random sample.
  • Overturned means the reviewer disagreed with the plan; it does not mean the treatment worked or that a similar request will be approved.
  • Argument tags are keyword matches on the reviewer's findings. They describe what the findings mention, not why the case was decided.
  • Categories are DMHC's own labels (treatment sub-category and diagnosis category); 'Other' is a catch-all and is excluded from rankings.

Source: California Department of Managed Health Care, Independent Medical Review (IMR) Determinations, Trend (CHHS Open Data). Public California government data; Apellica's aggregates and tags are CC BY 4.0.

Questions

How often were Anti-virals denials overturned?

In 1,351 California IMR decisions from 2003 to 2026, reviewers overturned the plan 1,100 times (81.4%). In the last five years: 64.0% of 25.

What did the reviewers' findings mention in overturned cases?

The table on this page counts keyword matches in the findings: prior therapies tried, contraindications, guidelines cited, published evidence, whether the records supported the request. They describe what the findings say, not why the case was decided.

Does a California IMR result apply to my plan?

Only California plans regulated by the Department of Managed Health Care go to IMR. Other states and self-funded employer plans use different reviewers, but the reasoning is the same kind: criteria, documentation and alternatives. Use the findings as a guide to what to document.

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Related: California appeal rights · California external-review reversal rate · The levers library · CSV

Denied for this?

Independent reviewers reverse plans when the record answers the criteria. Upload the denial letter; a senior reviewer reads it within 24 hours and tells you in writing whether it can be appealed and how. $0 upfront, 10% of what is recovered, nothing if we do not recover. Not a law firm.