Emergency denials: 65.6% overturned by independent reviewers
In 32 California IMR decisions from 2017 to 2025, reviewers overturned the plan 21 times (65.6%). In the last five years: 87.5% of 8. Denials reach IMR only when a member appeals all the way; read the caveats below before generalising.
By diagnosis
| Diagnosis category | Decisions | Overturned | Last 5 years |
|---|---|---|---|
| Cardiac/Circ Problem | 6 | 83.3% | 75.0% of 4 |
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2021 | 3 | 66.7% |
| 2023 | 1 | 100.0% |
| 2024 | 3 | 100.0% |
| 2025 | 1 | 100.0% |
What the findings mention
| What the findings mention | Decisions | Overturned | All decisions here |
|---|---|---|---|
| Urgent or emergencyThe findings mention urgency. | 24 | 70.8% | 65.6% |
| Published evidence citedThe findings refer to peer-reviewed or published evidence. | 6 | 83.3% | 65.6% |
| Records did not supportThe findings say the documentation did not show what was needed (usually an upheld denial). | 5 | 0.0% | 65.6% |
| Guidelines or criteria citedThe findings cite guidelines, criteria or a standard of care. | 5 | 80.0% | 65.6% |
| Alternatives contraindicatedThe findings mention a contraindication to the plan's preferred option. | 3 | 66.7% | 65.6% |
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
“Nature of Statutory Criteria/Case Summary: A patient’s representative has requested reimbursement for air ambulance services. The records indicate that this patient was transported via air ambulance. The patient was accepted for continued care and follow-up treatment for diagnoses including advanced-stage lung cancer, septic shock, congestive heart failure, and bronchospasm. Patients with septic shock encounter a significantly increased risk of morbidity, …”
“Nature of Statutory Criteria/Case Summary: The patient’s parent has requested reimbursement for air ambulance transportation. Air ambulance transport involves the use of fixed-wing or rotary-wing aircraft to transfer a patient from one location to another. Generally accepted indications for air ambulance transport may be divided into medical and trauma categories. Medical indications include acute cardiac emergencies, acute surgical emergencies, acute …”
“Nature of Statutory Criteria/Case Summary: The patient has requested reimbursement for air ambulance service. Researchers explain that basilar artery thrombosis is a devastating form of stroke with high morbidity and mortality, with mortality rates greater than 85% that drop to 40% with recanalization. While survival after stroke depends initially on the acute phase of specialist hospital care, optimal recovery requires …”
- 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 Emergency denials overturned?
In 32 California IMR decisions from 2017 to 2025, reviewers overturned the plan 21 times (65.6%). In the last five years: 87.5% of 8.
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.
Related: California appeal rights · California external-review reversal rate · The levers library · CSV
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.