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Mental Health Treatment denials: what the review data shows
Independent reviewers have decided 4,835 published cases where an insurer denied mental health treatment — and they overturned the insurer 59% of the time. If your denial is in this category, the odds say: appeal.
Published decisions
4,835
2001–2026
Overturned
59%
2,851 denials reversed
By denial reason
The excuse on the letter changes the odds — and the counter-strategy.
| Denial reason | Decisions | Overturned |
|---|---|---|
| medical necessity | 4,726 | 59.8% |
| experimental / investigational | 55 | 30.9% |
| emergency or urgent care | 54 | 18.5% |
Within this category
Subcategories with at least 15 published decisions.
| Subcategory | Decisions | Overturned |
|---|---|---|
| RTC | 1,390 | 80.5% |
| RTC/ Admit | 1,061 | 41.5% |
| Partial Hospital | 371 | 63.3% |
| Acute Psych/ Admit | 363 | 56.2% |
| Intensive Outpt Prog | 309 | 71.5% |
| RTC/Discharge | 289 | 40.5% |
| Other | 274 | 43.4% |
| Psychotherapy | 163 | 52.1% |
| Individ Counsel | 130 | 66.9% |
| Drug Rehab Program | 107 | 27.1% |
| ETOH Rehab Program | 83 | 27.7% |
| Behavioral Therapy | 78 | 51.3% |
| Cognitive Therapy | 39 | 53.8% |
| Acute Psych | 39 | 76.9% |
| Acute Psych/Dischg | 34 | 73.5% |
| TMS | 31 | 87.1% |
| Pyschotherapy | 20 | 25% |
How to use this in your appeal
These are outcomes from California’s external review program — an independent physician panel that binds the insurer. Every state has an equivalent process, and internal appeals succeed even more often. Cite the category outcome when you appeal: reviewers routinely find that denials like yours didn’t hold up.
SOURCE: CALIFORNIA DMHC INDEPENDENT MEDICAL REVIEW OUTCOMES (CHHS OPEN DATA) · DERIVED AGGREGATE STATISTICS ONLY · METHODOLOGY
Not legal or medical advice. Coverage Rights is a self-help tool that helps you prepare your own appeal. For advice about your specific situation, talk to a licensed attorney or your doctor.