ZNU

BCBS Prefix ZNU

Premera Blue Cross

Washington • Medicaid, Traditional Indemnity, HMO

Billing essentials

Provider phone
(877) 342-5258
Electronic payer ID
00851
Claims mailing address
P.O. Box 91059, Seattle, WA 98111-9159
Timely filing limit
90 daysCompare all plans
Prior authorization phone
(877) 342-5258

Coverage under prefix ZNU

Medicaid

Under this prefix, the member may have Medicaid coverage managed by this BCBS plan. Medicaid claims have specific rules around cost-sharing, balance billing, and timely filing that override the plan's standard commercial policies. Contact the plan's Medicaid provider services line for submission details.

Traditional Indemnity

Under this indemnity prefix, the member has fee-for-service coverage. There is no provider network, no referral requirement, and no primary care physician gatekeeper. Claims are processed based on the plan's fee schedule. While less common than managed care plans, indemnity coverage is still offered by some BCBS companies.

HMO

HMO (Health Maintenance Organization) plans require members to choose a primary care physician (PCP) and obtain referrals before seeing specialists. Out-of-network services are generally not covered except in emergencies. Claims must be submitted to the payer listed above and should include referral authorization when applicable.

About Premera Blue Cross

Independent licensee providing commercial, Medicare and Medicaid plans to Washington members.