Duodenal Switch denials: what the review data shows
Independent reviewers have decided 112 published cases where an insurer denied Duodenal Switch — and they overturned the insurer 71.4% of the time. A denial for Duodenal Switch is a starting position, not a final answer.
By condition
| Condition | Decisions | Overturned |
|---|---|---|
| Obesity | 29 | 55.2% |
What the insurer actually argued
| Reason given | Decisions | Overturned |
|---|---|---|
Medical Necessity The plan said the care wasn’t medically necessary. The most common fight, and the most winnable. | 105 | 74.3% |
Experimental/Investigational The plan called the treatment unproven. These turn on published evidence, so the appeal is a literature argument. | 7 | 28.6% |
Where the denial was overturned
Physician 1This is a 55-year-old patient with a BMI of 62. The patient has tried multiple medical regimens for weight loss without success. There are also multiple comorbid factors, which include diabetes mellitus, degenerative disc disease, hypercholestremia, and hypertriglyceridemia. Based upon the information provided, it does not appear that the patient has undergone a formal psychiatric evaluation. The patient wishes to undergo a duodenal switch procedure.I have reviewed all of the supporting documents provided. In the Roux-en-Y procedure dumping syndrome, stomal ulcers, and vitamin deficiency are commonly seen. Techniques in duodenal switch have been available since the 1980s. With duodenal switch, patients lose weight in the range of 69% to 80%. Complications have been reported to be comparable to other operations.
Physician 1: The patient is a 62-year-old female with a body mass index (BMI) of 39. The patient has multiple comorbidities that will be ameliorated or eliminated by bariatric surgery. She requires long-term NSAIDs for osteoarthritis and has failed conventional weight loss therapy. The patient has obtained psychiatric clearance for weight loss surgery. She wishes to undergo gastric bypass with duodenal switch. The Health Plan has denied coverage for the requested procedure indicating it is experimental.The duodenal switch procedure has a track record greater than 15 years. There are now long-term studies describing equal or greater weight loss with the duodenal switch procedure than with Roux-en-Y. The data reveals duodenal switch results in few incidents of dumping and anastomotic stricture.
Where the denial was upheld
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for duodenal switch procedure with hiatal hernia repair for treatment of the enrollee’s obesity. Findings: The physician reviewer found that based on the documentation submitted for review, the patient is an adult with morbid obesity. The patient underwent the lap vertical sleeve gastrectomy in 2005 but remains morbidly obese with a BMI of 46 kg/m2. Re-operative bariatric surgery is a potential treatment for persistent weight loss and duodenal switch procedure affords durable weight loss of any bariatric procedure. The duodenal switch procedure involves a sleeve gastrectomy and a malabsorptive intestinal bypass. The duodenal switch is performed either is a staged or stand-alone primary procedure.
Nature of Statutory Criteria/Case Summary: An enrollee has requested authorization and coverage for duodenal switch procedure with hiatal hernia repair.Findings: The physician reviewer found that the request for the duodenal switch procedure is not medically necessary at this time. The completion and documentation of a thorough multidisciplinary evaluation is required. Both a psychological and dietary evaluation is clinically indicated. The patient underwent a psychological evaluation, however a dietary evaluation specifically in regards to the duodenal switch procedure and review of fat and water soluble micronutrient intake deficiency is not documented. Although the patient attended an in-Plan nutrition class, it is not documented that the effects of the duodenal switch procedure were discussed.
Figures and quotations on this page come from 42,749 published decisions in the California DMHC Independent Medical Review dataset. These are California outcomes — every state runs an equivalent external review, but the rates here are California’s. Excerpts are quoted verbatim from the public record and describe this treatment generally, not any individual case.
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 outcome record for Duodenal Switchwhen 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