Bariatric surgery is one of the most documentation-heavy approvals in all of insurance, and the rules genuinely differ by insurer. Cigna publishes its criteria in a medical coverage policy (Bariatric Surgery, mm_0051), and the notable thing is that Cigna has moved to the newer, lower BMI thresholds that several other large insurers still haven't adopted.
Cigna generally covers these as medically necessary when you meet the criteria:
Cigna generally does not cover these, treating them as experimental, investigational, or unproven:
So if you've been quoted a "gastric balloon," that's the one most likely to be denied outright — not because you don't qualify, but because Cigna doesn't consider the procedure itself proven.
For years, insurers used the old 1991 NIH thresholds: BMI 40, or 35 with a weight-related condition. In 2022 the surgical societies (ASMBS/IFSO) lowered the recommended thresholds to 35, or 30 with a condition. Cigna's policy reflects the newer, lower bar:
That's a meaningfully lower bar than UnitedHealthcare, Aetna, and Anthem, which for the most part still use 40, or 35 with a condition. If your BMI is in the 35–39 range, you may qualify with Cigna where you wouldn't with those insurers.
Meeting the BMI bar is necessary but not sufficient. Cigna, like all bariatric payers, wants a pre-surgical workup on file. Expect to need:
One helpful distinction: unlike UnitedHealthcare and Aetna, Cigna's policy does not mandate a fixed, multi-month medically-supervised diet immediately before surgery. That specific requirement — often 6 months — is one of the most common reasons bariatric requests get delayed elsewhere. (Your individual employer plan can still add its own requirement, so confirm your plan's version.)
| Insurer | BMI alone | BMI with a condition | Pre-op supervised diet |
|---|---|---|---|
| Cigna | ≥35 | ≥30 | No fixed multi-month requirement |
| UnitedHealthcare | ≥40 | ≥35 | Commonly a supervised program |
| Aetna | ≥40 | ≥35 | Commonly 6 months |
| Anthem / Elevance | ≥40 | ≥35 | Commonly a supervised program |
| Medicare | — | ≥35 + a condition + failed medical treatment | At an approved facility |
Enter your BMI, conditions, and plan, and see exactly where you stand against Cigna's real criteria — plus what to document to support approval.
Check my bariatric coverageYes. Sleeve gastrectomy is covered by Cigna as medically necessary when you meet the criteria — generally a BMI of 35 or higher, or 30 or higher with a weight-related condition such as type 2 diabetes, high blood pressure, high cholesterol, or sleep apnea — plus the required nutritional and psychological evaluations.
Yes. Roux-en-Y gastric bypass is a covered procedure under Cigna's bariatric surgery policy, subject to the same BMI thresholds and pre-surgical evaluation requirements as the gastric sleeve.
Yes. The adjustable gastric band (lap band) remains a covered option under Cigna's policy when criteria are met, though it's chosen far less often than the sleeve or bypass today.
Generally no. Cigna typically treats the intragastric balloon (gastric balloon, e.g. Orbera or ReShape) as experimental, investigational, or unproven, so it's usually not covered — regardless of your BMI. If weight-loss surgery is your goal, a covered procedure like the sleeve or bypass is the more likely path.
Cigna's policy uses a BMI of 35 or higher on its own, or 30 or higher with a weight-related condition. That's lower than the 40 / 35-with-condition thresholds several other large insurers still use, so people in the 35–39 BMI range sometimes qualify with Cigna when they wouldn't elsewhere.
Cigna's bariatric policy does not mandate a fixed multi-month medically-supervised diet immediately before surgery, unlike some insurers. You will still need a nutritional evaluation, a psychological evaluation, and a multidisciplinary assessment. Note that an individual employer plan can add its own supervised-program requirement, so confirm your specific plan's rules.
The most common reasons aren't the BMI. They are: missing pre-surgical evaluations (nutrition or psychology), a chosen procedure Cigna considers investigational (such as a gastric balloon), incomplete documentation of prior weight-loss efforts, or an employer plan that excludes bariatric surgery entirely. Confirming the benefit exists and completing the workup up front prevents most denials.
Related: Bariatric & GLP-1 coverage checker · Does UnitedHealthcare cover weight-loss surgery? · GLP-1 coverage by insurer · all coverage tools