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Premera Blue Cross (Washington and Alaska) · Drug benefit: Express Scripts · 4 documents cited · Read September 2026

Covers weight-loss GLP-1s only when the employer elects the benefit, then approves Wegovy for 7 months and renews at 5% weight loss.

American GLP, Publisher · Who writes this site

Premera, the Blue plan for Washington and Alaska, puts the benefit question first in its own words: weight-loss GLP-1s are covered only when an employer group elects the benefit. If your group didn't, they aren't covered for obesity.

If it did, Premera's policy 5.01.621 sets the rules: three months of diet and behavior change, a BMI of 30 or 27 with a weight-related condition, a 7-month first approval for Wegovy or Foundayo, and a 5% weight-loss test to renew.

Does your plan's BMI rule match the policy?

Not always. Premera says some plans set their own BMI threshold for these drugs, and it can differ from the policy's. So the number in the policy is a default, not a promise.

What the drug list shows

Premera's 2026 drug list carries Foundayo, Saxenda, Wegovy, Wegovy HD, the Wegovy tablet and Zepbound on tier 3 marked PA and OPT, which the list defines as an optional benefit. The same list says many plans exclude weight-management drugs.

Every claim above, with the document behind it

These are the policies we opened and the month we opened them. Each one carries its own policy number and effective date on its face, and those are printed here as the document shows them.

"Weight management GLP-1s are reviewed under the weight-loss drug policy and are only covered when an employer group elects this benefit." And: "If a group doesn't elect weight-loss drug coverage, GLP-1s for obesity are not covered."

Premera Blue Cross, Employer News, "GLP-1s Still Making Headlines", effective February 2026 · source

For Foundayo, Wegovy and Zepbound the member "Has engaged in a trial of behavioral modification and dietary restriction for at least 3 months" and "Has a body mass index (BMI) of greater than or equal to 30 kg/m2 OR ... greater than or equal to 27 kg/m2 and one or more of the following weight-related comorbid conditions."

Premera Blue Cross, Pharmacy Policy 5.01.621, Drugs for Weight Management, effective September 2026 · source

"Wegovy (semaglutide) for chronic weight management may be approved for 7 months." Renewal for a year needs "Weight loss of greater than or equal to 5% baseline body weight after 7 months of treatment".

Premera Blue Cross, Pharmacy Policy 5.01.621, Drugs for Weight Management, effective September 2026 · source

Quantity limits: Wegovy injection "is limited to 4 pens per 28 days"; for Foundayo "The quantity is limited to 30 tablets per 30 days" and it "may be approved for 7 months."

Premera Blue Cross, Pharmacy Policy 5.01.621, Drugs for Weight Management, effective September 2026 · source

"Some plans provide coverage for certain medications (e.g., GLP-1s) used for weight management only when the member's body mass index (BMI) meets a specified threshold. This threshold may differ from the BMI criteria outlined in this medical policy."

Premera Blue Cross, Pharmacy Policy 5.01.621, Drugs for Weight Management, effective September 2026 · source

The 2026 drug list shows Foundayo, Saxenda, Wegovy, Wegovy HD, the Wegovy tablet and Zepbound as "3 | PA; OPT", where "OPT" means "Optional Benefits", and notes: "Many benefit plans exclude drugs for erectile dysfunction (ED), fertility, and weight management."

Premera Blue Cross, RX Formulary E1/E3 Drug List (2026) · source

"Pharmacy benefits are coordinated through our partner, Express Scripts."

Premera Blue Cross, About pharmacy (provider page) · source

What these documents cannot tell you

Everything above is what Premera Blue Cross publishes. None of it establishes what your own plan does, and the gap between those two things is wider than a carrier policy makes it look.

  • Whether your employer elected the weight-loss benefit isn't public. Your benefit booklet or HR can tell you.
  • Your plan's own BMI threshold may differ from the policy's, and Premera says so.
  • A self-funded employer plan administered by Premera can set its own rules.
  • None of this is legal or medical advice. Your plan documents and your notice govern your case.

Where this comes from

  1. Premera Blue Cross, Employer News, "GLP-1s Still Making Headlines", effective February 2026 — Open the document
  2. Premera Blue Cross, Pharmacy Policy 5.01.621, Drugs for Weight Management, effective September 2026 — Open the document
  3. Premera Blue Cross, RX Formulary E1/E3 Drug List (2026) — Open the document
  4. Premera Blue Cross, About pharmacy (provider page) — Open the document

Where to go next

American GLP is not a law firm, an insurer, a government office or a clinician, and nothing here is legal or medical advice. This page describes what Premera Blue Cross publishes. It is not affiliated with Premera Blue Cross (Washington and Alaska), and your own plan documents and your own notice govern your case. Policies carry effective dates and change — read the sources before you act.