Bariatric Surgery for Endocrine/Metabolic: 60.9% of denials overturned
In 46 California IMR decisions from 2003 to 2026, reviewers overturned 28 (60.9%). In the last five years: 63.6% of 33. 36 were medical-necessity disputes, 10 experimental/investigational.
By year (last five)
| Year | Decisions | Overturned |
|---|---|---|
| 2021 | 11 | 36.4% |
| 2022 | 4 | 50.0% |
| 2023 | 6 | 66.7% |
| 2024 | 2 | 50.0% |
| 2025 | 9 | 100.0% |
| 2026 | 1 | 100.0% |
What the findings mention
| What the findings mention | Decisions | Overturned | All decisions here |
|---|---|---|---|
| Published evidence citedThe findings refer to peer-reviewed or published evidence. | 13 | 46.2% | 60.9% |
| Guidelines or criteria citedThe findings cite guidelines, criteria or a standard of care. | 10 | 60.0% | 60.9% |
| Records did not supportThe findings say the documentation did not show what was needed (usually an upheld denial). | 6 | 0.0% | 60.9% |
| Alternatives contraindicatedThe findings mention a contraindication to the plan's preferred option. | 4 | 50.0% | 60.9% |
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 authorization and coverage for endoscopic sleeve gastroplasty. Endoscopic sleeve gastroplasty can be safe in treating patients with refractory obesity with a low rate of adverse events. Endoscopic sleeve gastroplasty demonstrated superiority to lifestyle modification in multiple studies. Beyond effectiveness in the treatment of obesity, treatment with …”
“The physician reviewer found that a patient has requested authorization and coverage for endoscopic sleeve gastroplasty. Endoscopic sleeve gastroplasty can be safe in treating patients with refractory obesity with a low rate of adverse events. Endoscopic sleeve gastroplasty demonstrated superiority to lifestyle modification in multiple studies. Beyond effectiveness in the treatment of obesity, treatment with endoscopic sleeve gastroplasty can result …”
“The physician reviewer found that A patient has requested authorization and coverage for transoral outlet reduction, endoscopic (TORe). Medical literature supports the safety and efficacy of TORe for addressing weight regain following Roux-en-Y gastric bypass.The patient has experienced weight regain after prior bariatric surgery and currently meets criteria consistent with obesity and related comorbid conditions. Clinical evidence supports the use …”
And one the reviewer upheld
“Nature of Statutory Criteria/Case Summary: The patient has requested authorization and coverage for sleeve gastrectomy. On review of the current guidelines from the American Society of Metabolic and Bariatric Surgery (ASMBS), this patient does not meet the criteria for the requested sleeve gastrectomy. Specifically, the patient’s records do not document a history of type 2 diabetes mellitus or other obesity-related …”
- 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 Bariatric Surgery denials for Endocrine/Metabolic overturned?
In 46 California IMR decisions from 2003 to 2026, reviewers overturned 28 (60.9%). In the last five years: 63.6% of 33. 36 were medical-necessity disputes, 10 experimental/investigational.
What should an appeal document, based on these findings?
Whatever the plan's criteria ask for, shown in the record: the treatments already tried and their results, contraindications to the plan's preferred option, the guideline or evidence that supports the request, and the treating clinician's reasoning written to the criteria. The tag table shows which of these the reviewers mentioned most in overturned cases.
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 they weigh the same things.
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.