Often yes — but the bar is different for every insurer, and that's exactly where claims get denied. Check your situation against your plan's real criteria below.
Most people assume there's one rule for weight-loss surgery. There isn't — and the difference is big enough to flip a denial into an approval. Here's the qualifying BMI for adults across the major insurers:
So a person with a BMI of 36 and no other conditions qualifies under Cigna but not under Aetna. Same body, different insurer, opposite answer — which is why checking your specific plan first matters so much.
For GLP-1 weight-loss drugs, the first question isn't your BMI — it's whether your plan covers these drugs at all:
Because this comes down to your specific plan's drug list, the fastest way to know is to look up the exact drug on your formulary — that's what our Drug Lookup does.
The denials here are rarely about whether you needed the treatment. They're about the prep the insurer wanted to see and didn't: a BMI history documented over time, the supervised diet program for the full required length, the psychological and nutrition evaluations, and the right obesity-related conditions coded. Walk in with those documented to your insurer's exact threshold and the surgery goes from "denied as not yet medically necessary" to approved.
Run your numbers against your insurer's actual criteria above — it takes about two minutes and is free.
Check my coverageIt depends on your insurer. Cigna covers at BMI ≥ 35 alone (or 30–34.9 with an obesity-related condition). Aetna, UnitedHealthcare, and Anthem generally require BMI ≥ 40, or ≥ 35 with a condition. Medicare requires ≥ 35 with a condition plus documented failed prior treatment.
No — Medicare Part D is barred by law from covering drugs used for weight loss. It can only cover them under a separate approved indication: Wegovy for cardiovascular risk reduction in people with established heart disease, or Zepbound for moderate-to-severe obstructive sleep apnea with obesity.
Usually because a required step wasn't documented to the insurer's standard — a full-length supervised diet program, the psychological or nutrition evaluation, BMI history over time, or the qualifying obesity-related condition. The surgery often qualifies; the request just didn't show it. These denials are frequently overturned on appeal.
Only if your BMI is below your insurer's "BMI-alone" threshold. Above it (e.g., BMI ≥ 35 for Cigna, ≥ 40 for Aetna), you qualify on BMI alone. Below it, a documented obesity-related condition — diabetes, sleep apnea, high blood pressure, heart or joint disease — can still qualify you.
A revision to fix a complication of the first surgery is usually covered. A revision for weight regain or inadequate weight loss alone generally is not.
Related: Drug Lookup · Why prior authorizations get denied · all coverage tools