F3K

BCBS Prefix F3K

Blue Cross and Blue Shield of Minnesota

Minnesota • Medicaid, Medicare Advantage, HMO

Billing essentials

Provider phone
(651) 662-5200
Electronic payer ID
CBMN1
Claims mailing address
P.O. Box 64560, St. Paul, MN 55164-0560
Timely filing limit
180 daysCompare all plans
Prior authorization phone
(651) 662-5200

Coverage under prefix F3K

Medicaid

This prefix is associated with Medicaid managed care. When a BCBS plan administers Medicaid, the claims process may differ from commercial coverage: different payer ID, different claims address, different prior authorization rules, and different timely filing limits. Always verify Medicaid-specific details before submitting.

Medicare Advantage

Under this prefix, the member may have Medicare Advantage coverage administered by this BCBS plan. MA claims are subject to CMS regulations in addition to the plan's own policies. Balance billing restrictions apply. Verify the member's specific MA plan details and confirm the correct payer ID for electronic submission.

HMO

Under this HMO prefix, the member's coverage is limited to the plan's provider network. Care is coordinated through a primary care physician. Specialist visits require a referral from the PCP. When billing, confirm that the referring provider and the referral authorization number are included on the claim.

About Blue Cross and Blue Shield of Minnesota

Independent licensee of the Blue Cross Blue Shield Association serving Minnesota members.