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BCBS Alpha Prefix XAA to XZZ

The BCBS alpha prefix range from XAA to XZZ is a set of three-character identifiers assigned by Blue Cross Blue Shield (BCBS) for claims processing and eligibility verification. BCBS alpha prefixes from XAA to XZZ appear as the first three characters of member identification numbers on BCBS insurance cards. Each prefix in the XAA to XZZ range determines the correct BCBS company and state associated with a member's insurance plan. Healthcare providers use the XAA to XZZ prefixes to route claims and confirm proper reimbursement.

The XAA to XZZ prefix range allows readers to identify prefixes by examining the insurance card's three-character code. Each prefix maps to a corresponding BCBS company and state, such as Anthem BCBS of Connecticut or BCBS of Alabama. The XAA to XZZ prefix assignment supports claims filing by matching each prefix to the home plan's contact details. The XAA to XZZ range is part of the full BCBS prefix directory, which includes all plan identifiers from AAA to ZZZ.

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BCBS Prefix XAA to XEZ Assignment Table

The BCBS Prefix XAA to XEZ Assignment Table lists the Blue Cross Blue Shield prefixes from XAA to XEZ. The XAA to XEZ table identifies the BCBS home plans, states, and plan types associated with each prefix. The XAA to XEZ table includes claims phone numbers for accurate claims filing and verification.

Prefix BCBS Home Plan Name State Plan Type Claims Phone Number
XAL BCBS of Alabama Alabama Medicare Advantage, PPO, Traditional Indemnity (800) 292-6662
XAM BCBS of Alabama Alabama EPO, HDHP, HMO (800) 292-6662
XAN Anthem BCBS of Missouri Missouri POS, Medicaid, PPO (800) 331-1475
XAO Blue Shield of California California Traditional Indemnity, Medicare Advantage, HDHP (800) 676-2583
XAP BCBS of Alabama Alabama HMO, EPO, Traditional Indemnity (800) 292-6662
XAQ BCBS of Alabama Alabama HDHP, PPO, Medicaid (800) 292-6662
XAR BCBS of Alabama Alabama Medicare Advantage, POS, HMO (800) 292-6662
XAS BCBS of Alabama Alabama EPO, HDHP, Traditional Indemnity (800) 292-6662
XAT BCBS of Alabama Alabama PPO, Medicaid, EPO (800) 292-6662
XAU Anthem BCBS of Colorado Colorado Traditional Indemnity, HMO, Medicare Advantage (800) 424-5725

The prefixes listed in the XAA to XEZ table are verified for routing claims within the BCBS network. For prefixes not detailed in the XAA to XEZ table, consult the BCBS Plan Finder for current information.

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BCBS Prefix XYL: A Commonly Searched BCBS Prefix

The BCBS prefix XYL is among the most frequently searched prefixes in the XAA to XZZ range. The XYL prefix is assigned to BCBS of Michigan, one of the largest Blue Cross Blue Shield licensees in the United States. BCBS of Michigan serves millions of members across the state and offers a range of plan types including PPO, HMO, EPO, HDHP, Medicare Advantage, and Traditional Indemnity plans. The claims phone number for the XYL prefix is (800) 482-3276.

Medical billers working with the XYL prefix should confirm the member's eligibility and coverage details by contacting the BCBS of Michigan claims department. Verification of the XYL prefix ensures that claims are submitted to the correct payer and that the member's benefits are accurately applied. The XYL prefix appears on member insurance cards, directing healthcare providers to route claims to BCBS of Michigan for processing.

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BCBS Prefix XFA to XKZ Assignment Table

The BCBS Prefix XFA to XKZ Assignment Table lists the Blue Cross Blue Shield alpha prefixes between XFA and XKZ. The XFA to XKZ table includes each prefix, the corresponding BCBS home plan, associated states, plan types, and claims contact numbers.

Prefix BCBS Home Plan Name State Plan Type Claims Phone Number
XFA Blue Shield of California California PPO (800) 676-2583
XFB Blue Shield of California California EPO (800) 676-2583
XFC Blue Shield of California California HMO (800) 676-2583
XFD Blue Shield of California California Traditional Indemnity (800) 676-2583
XFE Blue Shield of California California Medicare Advantage (800) 676-2583
XFF Blue Shield of California California HDHP (800) 676-2583
XFG Blue Shield of California California Medicaid (800) 676-2583
XHP Highmark BCBS of Delaware Delaware PPO, EPO, Traditional Indemnity (800) 541-1524
XKF Anthem BCBS of Georgia Georgia PPO, EPO, HMO, Medicare Advantage (800) 772-1139
XKK Anthem BCBS of Georgia Georgia PPO, EPO, Medicaid (800) 772-1139

The XFA to XKZ table includes assigned prefixes with their plan details and contact numbers for accurate claims routing.

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BCBS Prefix XLA to XPZ Assignment Table

The BCBS Alpha Prefix XLA to XPZ Assignment Table provides information for medical billing and claims processing. The XLA to XPZ table includes details about each prefix, the corresponding Blue Cross Blue Shield home plan, associated states, plan types, and claims contact numbers.

Prefix BCBS Home Plan Name State Plan Type Claims Phone Number
XLA HMSA BCBS of Hawaii Hawaii PPO, HMO, POS (808) 948-6111
XLB HMSA BCBS of Hawaii Hawaii EPO, Medicare Advantage (808) 948-6111
XLC HMSA BCBS of Hawaii Hawaii HDHP, Traditional Indemnity (808) 948-6111
XLD HMSA BCBS of Hawaii Hawaii Medicaid, PPO (808) 948-6111
XLE HMSA BCBS of Hawaii Hawaii HMO, POS, EPO (808) 948-6111
XLF Blue Cross of Idaho Idaho PPO, HMO, EPO (800) 627-1183
XLG Blue Cross of Idaho Idaho Medicare Advantage, HDHP (800) 627-1183
XLH Blue Cross of Idaho Idaho POS, Traditional Indemnity (800) 627-1183
XLI Blue Cross of Idaho Idaho Medicaid, PPO (800) 627-1183
XLJ Blue Cross of Idaho Idaho HMO, EPO (800) 627-1183
XLK Anthem BCBS of Kentucky Kentucky PPO, HMO, EPO (800) 331-1475
XLL Anthem BCBS of Kentucky Kentucky Medicare Advantage, HDHP, POS (800) 331-1475
XLM Anthem BCBS of Kentucky Kentucky Traditional Indemnity, Medicaid (800) 331-1475
XLN Anthem BCBS of Kentucky Kentucky PPO, EPO (800) 331-1475
XLO Anthem BCBS of Kentucky Kentucky HMO, Medicare Advantage (800) 331-1475
XLP Blue Shield of California California PPO, EPO, HMO (800) 676-2583
XLQ Blue Shield of California California Medicare Advantage, HDHP (800) 676-2583
XLR Blue Shield of California California Medicaid, Traditional Indemnity (800) 676-2583
XLS Blue Shield of California California POS, PPO (800) 676-2583
XLT Empire BCBS New York PPO, HMO, EPO (800) 553-9603
XLU Empire BCBS New York Medicare Advantage, POS (800) 553-9603
XLV Empire BCBS New York HDHP, Traditional Indemnity (800) 553-9603
XLW Empire BCBS New York Medicaid, PPO (800) 553-9603
XLX Empire BCBS New York EPO, HMO (800) 553-9603
XMA Wellmark BCBS Iowa/South Dakota PPO, HMO, EPO (800) 524-9242
XMB Wellmark BCBS Iowa/South Dakota Medicare Advantage, POS, HDHP (800) 524-9242
XMC Wellmark BCBS Iowa/South Dakota Traditional Indemnity, Medicaid (800) 524-9242
XMD Wellmark BCBS Iowa/South Dakota PPO, EPO (800) 524-9242
XME Wellmark BCBS Iowa/South Dakota HMO, Medicare Advantage (800) 524-9242
XMF Anthem BCBS of Maine Maine PPO, HMO, EPO (800) 331-1475
XMG Anthem BCBS of Maine Maine Medicare Advantage, HDHP, POS (800) 331-1475
XMH Anthem BCBS of Maine Maine Traditional Indemnity, Medicaid (800) 331-1475
XMI Anthem BCBS of Maine Maine PPO, EPO, HMO (800) 331-1475

The XLA to XPZ table covers BCBS prefixes assigned to Hawaii, Idaho, Kentucky, California, New York, Wellmark, and Maine plans for proper claim submission and processing.

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BCBS Prefix XRA to XZZ Assignment Table

The BCBS prefix range from XRA to XZZ covers Blue Cross Blue Shield plans across multiple states. The XRA to XZZ table provides detailed information about each prefix, including the associated home plan, state, plan type, and claims phone number.

Prefix BCBS Home Plan Name State Plan Type Claims Phone Number
XRA BCBS of Michigan Michigan PPO, HMO, EPO (800) 482-3276
XRB BCBS of Michigan Michigan Medicare Advantage, HDHP (800) 482-3276
XRC BCBS of Michigan Michigan Traditional Indemnity, POS (800) 482-3276
XRD BCBS of Michigan Michigan Medicaid, PPO (800) 482-3276
XRE BCBS of Michigan Michigan HMO, EPO, Medicare Advantage (800) 482-3276
XRF BCBS of Michigan Michigan PPO, HDHP, Traditional Indemnity (800) 482-3276
XRG BCBS of Michigan Michigan POS, Medicaid, HMO (800) 482-3276
XRH BCBS of Michigan Michigan EPO, PPO (800) 482-3276
XRI BCBS of Michigan Michigan Medicare Advantage, HMO (800) 482-3276
XRJ BCBS of Michigan Michigan HDHP, Traditional Indemnity, POS (800) 482-3276
XRK Anthem BCBS of Connecticut Connecticut PPO, HMO, EPO (800) 331-1475
XRL Anthem BCBS of Connecticut Connecticut Medicare Advantage, HDHP, POS (800) 331-1475
XRM Anthem BCBS of Connecticut Connecticut Traditional Indemnity, Medicaid (800) 331-1475
XRN Anthem BCBS of Connecticut Connecticut PPO, EPO (800) 331-1475
XRO Anthem BCBS of Connecticut Connecticut HMO, Medicare Advantage (800) 331-1475
XRP Anthem BCBS of Connecticut Connecticut HDHP, PPO, POS (800) 331-1475
XRQ Anthem BCBS of Connecticut Connecticut Medicaid, Traditional Indemnity (800) 331-1475
XRR Anthem BCBS of Connecticut Connecticut EPO, HMO (800) 331-1475
XRS Anthem BCBS of Connecticut Connecticut PPO, Medicare Advantage, HDHP (800) 331-1475
XRT Highmark BCBS of Pennsylvania Pennsylvania PPO, HMO, EPO (800) 541-1524
XRU Highmark BCBS of Pennsylvania Pennsylvania Medicare Advantage, HDHP (800) 541-1524
XRV Highmark BCBS of Pennsylvania Pennsylvania POS, Traditional Indemnity (800) 541-1524
XRW Highmark BCBS of Pennsylvania Pennsylvania Medicaid, PPO (800) 541-1524
XRX Highmark BCBS of Pennsylvania Pennsylvania EPO, HMO (800) 541-1524
XRY Highmark BCBS of Pennsylvania Pennsylvania Medicare Advantage, PPO (800) 541-1524
XRZ Highmark BCBS of Pennsylvania Pennsylvania HDHP, Traditional Indemnity (800) 541-1524
XSA BCBS of North Carolina North Carolina PPO, HMO, EPO (800) 214-4844
XSB BCBS of North Carolina North Carolina Medicare Advantage, HDHP (800) 214-4844
XSC BCBS of North Carolina North Carolina POS, Traditional Indemnity (800) 214-4844
XSD BCBS of North Carolina North Carolina Medicaid, PPO (800) 214-4844
XSE BCBS of North Carolina North Carolina HMO, EPO, Medicare Advantage (800) 214-4844
XSF BCBS of Texas Texas PPO, HMO, EPO (800) 521-9628
XSG BCBS of Texas Texas Medicare Advantage, HDHP, POS (800) 521-9628
XSH BCBS of Texas Texas Traditional Indemnity, Medicaid (800) 521-9628
XSI BCBS of Texas Texas PPO, EPO (800) 521-9628
XSJ BCBS of Texas Texas HMO, Medicare Advantage (800) 521-9628
XSK BCBS of Texas Texas HDHP, POS, PPO (800) 521-9628
XSL BCBS of Texas Texas Medicaid, Traditional Indemnity (800) 521-9628
XSM BCBS of Texas Texas EPO, HMO (800) 521-9628
XSN BCBS of Texas Texas PPO, Medicare Advantage (800) 521-9628
XSO BCBS of Texas Texas HDHP, POS, Traditional Indemnity (800) 521-9628
XSP CareFirst BCBS Maryland/DC/N. Virginia PPO, HMO, EPO (800) 692-7459
XSQ CareFirst BCBS Maryland/DC/N. Virginia Medicare Advantage, POS (800) 692-7459
XSR CareFirst BCBS Maryland/DC/N. Virginia HDHP, Traditional Indemnity (800) 692-7459
XSS CareFirst BCBS Maryland/DC/N. Virginia Medicaid, PPO (800) 692-7459
XST CareFirst BCBS Maryland/DC/N. Virginia EPO, HMO (800) 692-7459
XSU BCBS of Illinois Illinois PPO, HMO, EPO (800) 233-1474
XSV BCBS of Illinois Illinois Medicare Advantage, HDHP (800) 233-1474
XSW BCBS of Illinois Illinois POS, Traditional Indemnity (800) 233-1474
XSX BCBS of Illinois Illinois Medicaid, PPO (800) 233-1474
XSY BCBS of Illinois Illinois EPO, HMO (800) 233-1474
XSZ BCBS of Illinois Illinois Medicare Advantage, PPO (800) 233-1474
XTA Horizon BCBS of New Jersey New Jersey PPO, HMO, POS (800) 682-9090
XTB Horizon BCBS of New Jersey New Jersey Medicare Advantage, EPO (800) 682-9090
XTC Horizon BCBS of New Jersey New Jersey HDHP, Medicaid (800) 682-9090
XTD Horizon BCBS of New Jersey New Jersey Traditional Indemnity, PPO (800) 682-9090
XTE Horizon BCBS of New Jersey New Jersey HMO, POS (800) 682-9090
XTF BCBS of Florida Florida PPO, HMO, EPO (800) 352-2583
XTG BCBS of Florida Florida Medicare Advantage, HDHP (800) 352-2583
XTH BCBS of Florida Florida POS, Medicaid, Traditional Indemnity (800) 352-2583
XTI BCBS of Florida Florida PPO, EPO (800) 352-2583
XTJ BCBS of Florida Florida HMO, Medicare Advantage (800) 352-2583
XTK BCBS of Florida Florida HDHP, POS, PPO (800) 352-2583
XTL BCBS of Florida Florida Medicaid, Traditional Indemnity (800) 352-2583
XTM BCBS of Florida Florida EPO, HMO (800) 352-2583
XTN BCBS of Florida Florida PPO, Medicare Advantage (800) 352-2583
XTO BCBS of Florida Florida HDHP, POS, Traditional Indemnity (800) 352-2583
XUA Anthem BCBS of Indiana Indiana PPO, HMO, EPO (800) 331-1475
XUB Anthem BCBS of Indiana Indiana Medicare Advantage, HDHP (800) 331-1475
XUC Anthem BCBS of Indiana Indiana POS, Traditional Indemnity (800) 331-1475
XUD Anthem BCBS of Indiana Indiana Medicaid, PPO (800) 331-1475
XUE Anthem BCBS of Indiana Indiana EPO, HMO (800) 331-1475
XUF Anthem BCBS of Virginia Virginia PPO, HMO, EPO (800) 331-1475
XUG Anthem BCBS of Virginia Virginia Medicare Advantage, HDHP, POS (800) 331-1475
XUH Anthem BCBS of Virginia Virginia Traditional Indemnity, Medicaid (800) 331-1475
XUI Anthem BCBS of Virginia Virginia PPO, EPO (800) 331-1475
XUJ Anthem BCBS of Virginia Virginia HMO, Medicare Advantage (800) 331-1475
XVA BCBS of Tennessee Tennessee PPO, HMO, EPO (800) 467-2954
XVB BCBS of Tennessee Tennessee Medicare Advantage, HDHP, POS (800) 467-2954
XVC BCBS of Tennessee Tennessee Traditional Indemnity, Medicaid, PPO (800) 467-2954

The XRA to XZZ table identifies and categorizes the insurance plans under the Blue Cross Blue Shield umbrella with plan details for accurate claims processing.

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What Are the BCBS Alpha Prefixes from XAA to XZZ?

The BCBS alpha prefixes from XAA to XZZ are three-character codes assigned to Blue Cross Blue Shield insurance plans. Each prefix in the XAA to XZZ range identifies the BCBS home plan, the state of origin, and the plan type (such as PPO, HMO, EPO, or POS). The XAA to XZZ prefixes appear as the first three characters on a member's insurance ID card and are used by medical billers and healthcare providers to route claims, verify eligibility, and identify the correct BCBS entity for reimbursement.

The XAA to XZZ prefix range is part of the larger BCBS alpha prefix system, which spans from AAA through ZZZ. The Blue Cross Blue Shield Association assigns prefixes to its independent licensees across the United States. Each prefix maps to a specific BCBS company and state, such as XAL for BCBS of Alabama or XRK for Anthem BCBS of Connecticut. The prefix system standardizes the identification of BCBS plans for claims processing and provider services.

Not all prefixes in the XAA to XZZ range are assigned to active BCBS plans. Some prefixes remain unallocated and are reserved for future use or are not currently in circulation. Medical billers should verify unallocated prefixes against the latest BCBS directories or contact the BCBS Association to confirm prefix assignments before submitting claims.

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Which BCBS Companies Use Prefixes in the XAA to XZZ Range?

Multiple Blue Cross Blue Shield companies use prefixes in the XAA to XZZ range. The following BCBS companies are among those with assigned prefixes in this range:

  • health_and_safety BCBS of Alabama — Prefixes include XAL, XAM, XAP, XAQ, XAR, XAS, and XAT, covering PPO, HMO, EPO, HDHP, Traditional Indemnity, Medicaid, and Medicare Advantage plans in Alabama.
  • health_and_safety Blue Shield of California — Prefixes include XAO, XFA through XFG, XLP, XLQ, XLR, and XLS, covering PPO, EPO, HMO, HDHP, Medicaid, Medicare Advantage, and Traditional Indemnity plans in California.
  • health_and_safety Anthem BCBS of Connecticut — Prefixes include XRK through XRS, covering PPO, HMO, EPO, HDHP, POS, Medicare Advantage, Medicaid, and Traditional Indemnity plans in Connecticut.
  • health_and_safety BCBS of Michigan — Prefixes include XRA through XRJ, covering PPO, HMO, EPO, HDHP, POS, Traditional Indemnity, Medicaid, and Medicare Advantage plans in Michigan.
  • health_and_safety Highmark BCBS of Pennsylvania — Prefixes include XRT through XRZ, covering PPO, HMO, EPO, HDHP, POS, Traditional Indemnity, Medicaid, and Medicare Advantage plans in Pennsylvania.
  • health_and_safety Highmark BCBS of Delaware — Prefix XHP covers PPO, EPO, and Traditional Indemnity plans in Delaware.
  • health_and_safety Anthem BCBS of Georgia — Prefixes include XKF and XKK, covering PPO, EPO, HMO, Medicare Advantage, and Medicaid plans in Georgia.
  • health_and_safety Anthem BCBS of Missouri — Prefix XAN covers POS, Medicaid, and PPO plans in Missouri.
  • health_and_safety Anthem BCBS of Colorado — Prefix XAU covers Traditional Indemnity, HMO, and Medicare Advantage plans in Colorado.
  • health_and_safety HMSA BCBS of Hawaii — Prefixes include XLA through XLE, covering PPO, HMO, EPO, POS, HDHP, Medicaid, Medicare Advantage, and Traditional Indemnity plans in Hawaii.
  • health_and_safety Blue Cross of Idaho — Prefixes include XLF through XLJ, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in Idaho.
  • health_and_safety Anthem BCBS of Kentucky — Prefixes include XLK through XLO, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in Kentucky.
  • health_and_safety Empire BCBS — Prefixes include XLT through XLX, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in New York.
  • health_and_safety Wellmark BCBS — Prefixes include XMA through XME, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in Iowa and South Dakota.
  • health_and_safety Anthem BCBS of Maine — Prefixes include XMF through XMI, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in Maine.
  • health_and_safety BCBS of North Carolina — Prefixes include XSA through XSE, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in North Carolina.
  • health_and_safety BCBS of Texas — Prefixes include XSF through XSO, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in Texas.
  • health_and_safety CareFirst BCBS — Prefixes include XSP through XST, covering PPO, HMO, EPO, HDHP, POS, Medicaid, and Medicare Advantage plans in the Maryland, Washington D.C., and Northern Virginia region.
  • health_and_safety BCBS of Illinois — Prefixes include XSU through XSZ, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in Illinois.
  • health_and_safety Horizon BCBS of New Jersey — Prefixes include XTA through XTE, covering PPO, HMO, EPO, HDHP, POS, Medicaid, and Traditional Indemnity plans in New Jersey.
  • health_and_safety BCBS of Florida — Prefixes include XTF through XTO, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in Florida.
  • health_and_safety Anthem BCBS of Indiana — Prefixes include XUA through XUE, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in Indiana.
  • health_and_safety Anthem BCBS of Virginia — Prefixes include XUF through XUJ, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in Virginia.
  • health_and_safety BCBS of Tennessee — Prefixes include XVA through XVC, covering PPO, HMO, EPO, HDHP, POS, Medicaid, Medicare Advantage, and Traditional Indemnity plans in Tennessee.

These companies represent a portion of the independent BCBS licensees with prefixes in the XAA to XZZ range. Each company operates within specific states and offers a variety of plan types. Medical billers should consult the full BCBS prefix directory for a complete list of assignments within this range.

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How to Read the BCBS XAA to XZZ Prefix Table?

Reading the BCBS XAA to XZZ prefix table follows a systematic approach for accurate claims processing. The XAA to XZZ prefix table identifies the correct Blue Cross Blue Shield plan based on the prefix found on a patient's insurance card.

1 Locate the Prefix
Identify the three-character prefix on the patient's insurance card. The BCBS prefix verification is the first set of letters in the member ID.
2 Match the Prefix
Scan the 'Prefix' column in the XAA to XZZ table to find the exact three-letter code. The table is organized alphabetically for navigation.
3 Identify Plan Details
After locating the prefix, read across the row to gather details about the BCBS Home Plan Name, the State of origin, and the Plan Type (such as PPO, HMO, EPO, or POS). The plan details determine the coverage rules and network.
4 Verify Claims Information
Note the Claims Phone Number provided in the table. The claims phone number verifies details and confirms that claims are submitted to the correct payer following the appropriate billing protocols.
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How to Look Up a Specific BCBS Prefix in the XAA to XZZ Range?

Looking up a BCBS prefix in the XAA to XZZ range supports accurate claims processing. The following steps guide proper identification and submission.

1 Locate the Prefix on the Insurance Card
The BCBS prefix identifier is a three-character code found on the front of the patient's BCBS insurance card. The prefix code identifies the home plan and state.
2 Match the Prefix to the Reference Table
Use a BCBS prefix lookup directory to find the exact prefix. The directory provides details such as the BCBS home plan name, state, and plan type (e.g., PPO, HMO).
3 Identify the Home Plan and State
After matching the prefix, note the BCBS company and the state the plan serves. The home plan and state information directs claims routing.
4 Verify with the BCBS Contact Number
Before submitting claims, contact the claims phone number listed in the prefix table. Contacting the claims department confirms the patient's eligibility and coverage details.
5 Submit the Claim to the Correct Address
Use the verified information to route the claim to the appropriate BCBS company's processing address or electronic payer ID. All claim forms should reference the correct prefix and member ID to avoid denials.
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How to Verify the BCBS Home Plan Using the Three-Character Prefix?

1 Locate the Prefix on the Member's ID Card
The prefix is the first three alphabetic characters on the member's BCBS insurance card. It maps directly to a BCBS company and state.
2 Match Against the BCBS Prefix Directory
Access the BCBS prefix lookup table and find the matching three-character code. Confirm the home plan name, state, and plan type listed for that prefix.
3 Contact the BCBS Plan for Verification
Use the claims phone number listed for that prefix to contact the BCBS plan directly. Confirm member eligibility, benefits, and claims submission requirements.
4 Document and Proceed
Accurate prefix verification prevents claims from being submitted to the wrong BCBS entity and reduces processing delays. Record the verification details for audit purposes.
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What to Do When the XAA to XZZ Prefix Is Not in the Table?

When a BCBS prefix in the XAA to XZZ range is not listed in the assignment table, the prefix may be unallocated, recently reassigned, or not yet added to the reference directory. Medical billers should first verify the prefix by checking the BCBS Plan Finder tool on the Blue Cross Blue Shield Association website. The Plan Finder provides the most current prefix assignments and associated plan details. If the prefix is still not found, billers should contact the BCBS Association's provider support line or the local BCBS plan for assistance.

Submitting claims with an unverified or missing prefix can result in claim rejections, payment delays, or misdirected claims. Billers should document the verification steps taken and note any discrepancies between the prefix on the member's card and the available directories. If the prefix is confirmed as unallocated, the biller should request updated insurance information from the patient and verify the correct BCBS home plan before resubmitting the claim.

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BCBS XAA to XZZ Prefix Phone Numbers and Claims Filing Contacts

Each BCBS prefix in the XAA to XZZ range is associated with a claims phone number that connects providers and medical billers to the appropriate BCBS plan's claims department. The claims phone number is used to verify member eligibility, confirm plan details, obtain prior authorizations, and resolve claims issues. The phone numbers listed in the prefix tables are specific to the BCBS home plan identified by the prefix.

For example, the XAL prefix for BCBS of Alabama lists (800) 292-6662, while the XRK prefix for Anthem BCBS of Connecticut lists (800) 331-1475. Billers should use the claims phone number associated with the specific prefix rather than a general BCBS number, as each independent BCBS licensee maintains its own claims processing operations and provider support lines.

Some prefixes in the XAA to XZZ range may not have a listed phone number. For these prefixes, billers should use the BCBS Plan Finder or contact the BCBS Association to obtain the correct claims filing contact. Keeping an updated record of claims phone numbers for frequently encountered prefixes improves billing efficiency and reduces the time spent on claim follow-up.

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Claims Filing Addresses for XAA to XZZ BCBS Prefixes

Claims filing addresses for the XAA to XZZ BCBS prefixes vary by the BCBS home plan associated with each prefix. Each independent BCBS licensee maintains its own claims processing address for paper claims and an electronic payer ID for electronic claims submissions. Medical billers must match the prefix on the member's insurance card to the correct BCBS home plan and use the corresponding claims filing address to submit claims. Using the wrong filing address results in claim rejections or significant processing delays.

Electronic claims submission is the preferred method for most BCBS plans, using the payer ID associated with the home plan. Billers should verify the payer ID through the BCBS prefix directory or by contacting the claims phone number listed for the prefix. For paper claims, the mailing address is specific to the BCBS company and may differ based on the claim type (professional vs. institutional). Providers should consult the BCBS home plan's provider manual or website for the most current claims filing addresses and submission requirements.

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BCBS Plan Types Identified by XAA to XZZ Prefixes

The XAA to XZZ BCBS prefix range includes multiple plan types offered by Blue Cross Blue Shield companies. Each prefix identifies not only the home plan and state but also the type of insurance plan, which determines the network rules, coverage guidelines, and claims processing requirements.

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HMO (Health Maintenance Organization)

HMO plans in the XAA to XZZ prefix range require members to use in-network providers and obtain referrals from a primary care physician (PCP) for specialist care. HMO plans typically have lower premiums and out-of-pocket costs compared to PPO plans. Claims for HMO plans must be submitted to in-network providers, and services rendered by out-of-network providers are generally not covered except in emergencies. Billers must confirm that the referring PCP and the specialist are both in-network for the HMO plan.

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PPO (Preferred Provider Organization)

PPO plans identified by XAA to XZZ prefixes allow members to visit both in-network and out-of-network providers. In-network providers offer lower out-of-pocket costs, while out-of-network providers are covered at a reduced rate. PPO plans do not require referrals for specialist visits. Medical billers processing claims for PPO plans should verify whether the provider is in-network or out-of-network to apply the correct benefits and reimbursement rates.

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EPO (Exclusive Provider Organization)

EPO plans identified by XAA to XZZ prefixes require members to use in-network providers but do not require referrals for specialist visits. EPO plans combine elements of PPO and HMO plans by restricting coverage to in-network providers while eliminating the referral requirement. Out-of-network services are not covered except in emergencies. Billers must verify that the provider is in-network for the specific EPO plan before submitting claims.

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POS (Point of Service)

POS plans in the XAA to XZZ prefix range combine features of HMO and PPO plans. Members choose a primary care physician and can receive referrals to see specialists either in-network or out-of-network. In-network care is covered at a higher rate, while out-of-network care requires higher out-of-pocket costs. POS plans offer flexibility in provider choice while maintaining the structure of a managed care plan. Billers should verify referral requirements and network status when processing POS plan claims.

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HDHP (High Deductible Health Plan)

HDHP plans in the XAA to XZZ prefix range feature higher deductibles and lower monthly premiums. Members often pair HDHP plans with Health Savings Accounts (HSAs) to cover out-of-pocket costs. HDHP plans require members to pay more upfront before insurance coverage begins. Billers should verify the deductible status and confirm whether the patient has met the annual deductible threshold before processing claims.

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Traditional Indemnity

Traditional Indemnity plans in the XAA to XZZ prefix range allow members to visit any healthcare provider without network restrictions. Members pay for services and submit claims for reimbursement at a set percentage. Indemnity plans offer maximum flexibility in provider choice but typically require higher out-of-pocket costs and more paperwork compared to managed care plans. Billers should follow the specific reimbursement guidelines for each indemnity plan.

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Medicare Advantage and Medicaid Managed Care

Some prefixes in the XAA to XZZ range identify Medicare Advantage or Medicaid managed care plans administered by BCBS companies. Medicare Advantage plans provide Part A and Part B benefits through a private BCBS insurer, often with additional benefits such as dental or vision coverage. Medicaid managed care plans offer state Medicaid benefits through a BCBS-administered network. Billers must verify whether the member's plan is a Medicare Advantage or Medicaid product, as billing requirements, prior authorization rules, and reimbursement rates differ from commercial plans.

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Example Plan Types by Prefix

  • chevron_right XAL (BCBS of Alabama) — Medicare Advantage, PPO, and Traditional Indemnity plans serving Alabama residents with claims processed through BCBS of Alabama at (800) 292-6662.
  • chevron_right XRK (Anthem BCBS of Connecticut) — PPO, HMO, and EPO plans serving Connecticut residents with claims processed through Anthem BCBS at (800) 331-1475.
  • chevron_right XMA (Wellmark BCBS) — PPO, HMO, and EPO plans serving Iowa and South Dakota residents with claims processed through Wellmark BCBS at (800) 524-9242.
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How the Third Character in the Prefix Identifies the Plan Type?

The third character in a BCBS alpha prefix can provide additional information about the plan type or the specific product line within a BCBS company. While the BCBS prefix system primarily identifies the home plan and state, the third character may indicate whether the plan is a PPO, HMO, EPO, or a specialized product such as Medicare Advantage or a Federal Employee Program (FEP) plan. However, the third character's meaning is not standardized across all BCBS licensees, and its interpretation varies by company. Medical billers should not rely solely on the third character to determine the plan type. Instead, billers should verify the plan type by consulting the prefix directory, checking the member's insurance card, and confirming with the BCBS home plan's claims department.

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States and BCBS Companies Covered in the XAA to XZZ Prefix Range

The XAA to XZZ BCBS prefix range covers BCBS plans from multiple states across the United States. The following states are represented in the XAA to XZZ prefix range:

  • location_on Alabama — BCBS of Alabama (XAL, XAM, XAP, XAQ, XAR, XAS, XAT)
  • location_on California — Blue Shield of California (XAO, XFA-XFG, XLP-XLS)
  • location_on Colorado — Anthem BCBS of Colorado (XAU)
  • location_on Connecticut — Anthem BCBS of Connecticut (XRK-XRS)
  • location_on Delaware — Highmark BCBS of Delaware (XHP)
  • location_on Florida — BCBS of Florida (XTF-XTO)
  • location_on Georgia — Anthem BCBS of Georgia (XKF, XKK)
  • location_on Hawaii — HMSA BCBS of Hawaii (XLA-XLE)
  • location_on Idaho — Blue Cross of Idaho (XLF-XLJ)
  • location_on Illinois — BCBS of Illinois (XSU-XSZ)
  • location_on Indiana — Anthem BCBS of Indiana (XUA-XUE)
  • location_on Iowa/South Dakota — Wellmark BCBS (XMA-XME)
  • location_on Kentucky — Anthem BCBS of Kentucky (XLK-XLO)
  • location_on Maine — Anthem BCBS of Maine (XMF-XMI)
  • location_on Maryland/DC/N. Virginia — CareFirst BCBS (XSP-XST)
  • location_on Michigan — BCBS of Michigan (XRA-XRJ)
  • location_on Missouri — Anthem BCBS of Missouri (XAN)
  • location_on New Jersey — Horizon BCBS of New Jersey (XTA-XTE)
  • location_on New York — Empire BCBS (XLT-XLX)
  • location_on North Carolina — BCBS of North Carolina (XSA-XSE)
  • location_on Pennsylvania — Highmark BCBS of Pennsylvania (XRT-XRZ)
  • location_on Tennessee — BCBS of Tennessee (XVA-XVC)
  • location_on Texas — BCBS of Texas (XSF-XSO)
  • location_on Virginia — Anthem BCBS of Virginia (XUF-XUJ)

The distribution of prefixes across states and companies reflects the decentralized structure of the BCBS system. No single BCBS entity controls the entire prefix range. Instead, each licensee is assigned specific prefixes to identify its members and plans. Medical billers should use the prefix on the member's ID card as the primary identifier for determining which BCBS company and state to contact for claims processing and eligibility verification.

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How to Use XAA to XZZ Prefixes for Insurance Eligibility Verification?

Using BCBS alpha prefixes in the XAA to XZZ range for insurance eligibility verification follows a structured process. The XAA to XZZ prefix verification confirms patient coverage before healthcare services are rendered.

1 Obtain the Patient's Insurance Card
Request the patient's BCBS insurance card at check-in. The card displays the member ID, which begins with the three-character alpha prefix. Copy the prefix and full member ID accurately for verification purposes.
2 Identify the BCBS Home Plan Using the Prefix
Use the XAA to XZZ prefix lookup table to match the prefix to the corresponding BCBS home plan and state. The home plan identification determines which BCBS entity to contact for eligibility verification.
3 Contact the Claims Phone Number
Call the claims phone number listed in the prefix table for the identified home plan. Provide the member ID and prefix to the representative to verify the patient's eligibility, coverage status, and benefits.
4 Confirm Plan Type and Network Status
During the verification call, confirm the plan type (PPO, HMO, EPO, POS, HDHP, Traditional Indemnity, Medicare Advantage, or Medicaid) and whether the provider is in-network for the patient's plan. Network status affects coverage levels and reimbursement rates.
5 Document the Verification Results
Record the verification reference number, the representative's name, and the confirmed coverage details. Documentation supports claim submission and provides evidence of eligibility verification in case of disputes or audits.
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How to Route Claims Using the XAA to XZZ BCBS Prefix?

Routing claims using the XAA to XZZ BCBS prefix follows a systematic approach for accurate processing.

  1. 1 Read the Prefix from the Member ID Card — Identify the three-character alpha prefix at the beginning of the member's ID number on their BCBS insurance card. The prefix is the key routing identifier for all BCBS claims.
  2. 2 Look Up the Prefix in the XAA to XZZ Table — Find the prefix in the assignment table to identify the BCBS home plan, state, plan type, and claims phone number. This information determines where the claim should be routed.
  3. 3 Determine the Correct Payer ID or Filing Address — Based on the home plan identified, obtain the correct electronic payer ID for electronic claims or the mailing address for paper claims. The payer ID and filing address are specific to the BCBS home plan associated with the prefix.
  4. 4 Submit the Claim with the Correct Prefix and Member ID — Submit the claim using the full member ID (including the three-character prefix) to the identified payer. Ensure the claim form references the correct prefix, as an incorrect or missing prefix will result in claim rejection or misdirection to the wrong BCBS plan.
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Common Questions

What Are BCBS Prefixes?
BCBS prefixes are three-character alphabetic codes that appear at the beginning of a Blue Cross Blue Shield member's insurance ID number. Each prefix identifies the BCBS home plan (the specific BCBS company that issued the insurance), the state where the plan is based, and the general plan type. The prefix system enables medical billers and healthcare providers to quickly identify which BCBS entity is responsible for processing claims and verifying member eligibility. The BCBS Association assigns prefixes to its independent licensees, and the complete prefix directory spans from AAA through ZZZ.
How Do You Identify a Blue Prefix?
The Blue prefix on an insurance card is the first three alphabetic characters of the member ID number, located on the front of the BCBS insurance card. The prefix is always composed of three letters (no numbers) and is followed by additional alphanumeric characters that form the complete member ID. To identify the prefix, look at the member ID field and isolate the first three letters. These three letters are the BCBS alpha prefix that maps to a specific home plan, state, and claims routing destination.
Does XAA to XZZ Include Alphanumeric?
The XAA to XZZ prefix range consists exclusively of three-letter alphabetic codes. BCBS alpha prefixes are composed of letters only and do not include numbers. However, the broader BCBS identification system may include alphanumeric characters in the full member ID that follows the three-letter prefix. The prefix itself, within the XAA to XZZ range, is strictly alphabetic. If a member's ID card appears to have numbers in the first three characters, it may indicate a non-standard card format or a different insurance system.
Are There Rules for Assigning?
The Blue Cross Blue Shield Association assigns alpha prefixes to its independent licensees according to internal assignment rules. The first character of the prefix often corresponds to a geographic region or a specific BCBS company, but this pattern is not universally consistent. Some BCBS companies hold multiple prefixes to distinguish between different plan types, product lines, or geographic sub-regions. Prefixes may be reassigned or retired as BCBS companies merge, restructure, or expand their product offerings. The assignment rules are managed by the BCBS Association, and the complete prefix directory is the authoritative source for current assignments.
Can a Prefix Belong to Multiple States?
A BCBS prefix in the XAA to XZZ range can be associated with a BCBS company that operates across multiple states. For example, the XMA prefix is assigned to Wellmark BCBS, which operates in Iowa and South Dakota. In such cases, the prefix identifies the parent BCBS company rather than a single state. However, each prefix is assigned to one BCBS licensee, even if that licensee serves multiple states. Medical billers should verify the specific state and plan details by consulting the prefix directory or contacting the BCBS company associated with the prefix to determine the correct claims routing and eligibility information.
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Disclaimer

The information provided on this page is for educational and reference purposes only. This content is not affiliated with, endorsed by, or officially connected to the Blue Cross Blue Shield Association or any of its independent licensees. BCBS prefix assignments, plan details, claims phone numbers, and filing addresses are subject to change without notice. Medical billers and healthcare providers should verify all BCBS prefix list information against the official BCBS Plan Finder and contact the appropriate BCBS plan directly before submitting claims. This resource should not be used as the sole basis for claims submission or eligibility verification. Always cross-reference with current, authoritative sources.