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Specialty Procedures denials: what the review data shows
Independent reviewers have decided 499 published cases where an insurer denied specialty procedures — and they overturned the insurer 35.1% of the time. If your denial is in this category, the odds say: appeal.
Published decisions
499
2001–2026
Overturned
35.1%
175 denials reversed
By denial reason
The excuse on the letter changes the odds — and the counter-strategy.
| Denial reason | Decisions | Overturned |
|---|---|---|
| medical necessity | 310 | 34.5% |
| experimental / investigational | 188 | 36.2% |
Within this category
Subcategories with at least 15 published decisions.
| Subcategory | Decisions | Overturned |
|---|---|---|
| Other | 148 | 40.5% |
| General Anesthesia | 148 | 25.7% |
| Hyperbaric O2 Chamb | 73 | 34.2% |
| Stem Cell Transplant | 56 | 41.1% |
| Organ Transplant | 34 | 50% |
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.