RTC denials: 80.5% overturned by independent reviewers
In 1,390 California IMR decisions from 2019 to 2026, reviewers overturned the plan 1,119 times (80.5%). In the last five years: 79.3% of 1,161. 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 |
|---|---|---|---|
| Mental Disorder | 1,351 | 80.2% | 79.0% of 1127 |
| Autism Spectrum | 29 | 89.7% | 88.5% of 26 |
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2021 | 256 | 72.3% |
| 2022 | 172 | 80.8% |
| 2023 | 301 | 77.7% |
| 2024 | 227 | 79.7% |
| 2025 | 202 | 88.6% |
| 2026 | 3 | 100.0% |
What the findings mention
| What the findings mention | Decisions | Overturned | All decisions here |
|---|---|---|---|
| Guidelines or criteria citedThe findings cite guidelines, criteria or a standard of care. | 239 | 95.0% | 80.5% |
| Records did not supportThe findings say the documentation did not show what was needed (usually an upheld denial). | 113 | 19.5% | 80.5% |
| Urgent or emergencyThe findings mention urgency. | 63 | 84.1% | 80.5% |
| Prior therapies failedThe findings mention treatments that were tried without adequate response. | 24 | 95.8% | 80.5% |
| Published evidence citedThe findings refer to peer-reviewed or published evidence. | 3 | 33.3% | 80.5% |
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 Nature of Statutory Criteria/Case Summary: A patient has requested reimbursement for ASAM 3.1 residential treatment center (RTC) services. Per the American Society of Addiction Medicine (ASAM) criteria, this patient met Level 3.1 criteria for RTC services for the time period under review. ASAM criteria focuses on six dimensions to determine the appropriate level of care, …”
“The physician reviewer found that Nature of Statutory Criteria/Case Summary: A patient has requested reimbursement and prospective authorization and coverage for ASAM Level 3.1 residential treatment center services. Per the American Society of Addiction Medicine criteria, this patient meets Level 3.1 criteria for residential treatment center services for the period under review. The ASAM framework evaluates six dimensions, including intoxication …”
“The physician reviewer found that a patient has requested reimbursement for residential treatment center (RTC) services. The American Association of Community Psychiatrists Level of Care Utilization System (LOCUS) provides a reliable framework for determining the appropriate level of care for adults needing mental health treatment. Using LOCUS, providers score patients on a scale of 1-5 using a six-pronged Dimensional Rating …”
- 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 RTC denials overturned?
In 1,390 California IMR decisions from 2019 to 2026, reviewers overturned the plan 1,119 times (80.5%). In the last five years: 79.3% of 1,161.
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.