How to Submit a Superbill to Blue Cross Blue Shield

Blue Cross Blue Shield is not one company — it is a federation of 33 independent regional plans operating under a shared brand. That makes submitting a superbill to BCBS slightly more nuanced than submitting to a single national insurer. This guide explains what you need to know and how to submit your claim correctly regardless of which BCBS plan you have.

Overview: How BCBS Works for Out-of-Network Claims

Each BCBS affiliate (for example, Anthem in several states, BlueCross BlueShield of Texas, or Excellus in upstate New York) operates independently. Your plan's OON benefits, deductible, coinsurance rate, and submission process are determined by your specific affiliate, not by a central BCBS headquarters.

The key information you need is on your member ID card: the three-letter alpha prefix (e.g., XYZ) identifies which BCBS affiliate administers your plan. When you call member services or log in to the member portal, you will be directed to your affiliate's platform. The portal URL and claims mailing address will vary by affiliate.

For a full overview of BCBS OON coverage, see our Blue Cross Blue Shield insurance guide. For the general superbill submission workflow that applies across all insurers, see our step-by-step superbill submission guide.

Step-by-Step Process for Submitting to BCBS

1. Identify your affiliate. Look at the front of your ID card. The logo will typically say "Blue Cross Blue Shield of [State]" or show the affiliate brand name (e.g., Anthem, Highmark, Premera). The alpha prefix on your member ID is the definitive identifier.
2. Log in to the affiliate member portal. Most BCBS affiliates have online claim submission through their own member portal (not bcbs.com, but your state affiliate's site). Navigate to Claims or Reimbursements and look for an OON claim or member reimbursement form.
3. Get your superbill from your therapist. Ensure it includes all required fields before submitting. BCBS affiliates are strict about NPI and diagnosis codes.
4. Complete the claim form. Some BCBS affiliates accept the superbill directly as the claim form; others require you to complete a separate member reimbursement form and attach the superbill as a backup document. Call member services to confirm which applies to your plan.
5. Submit online or by mail. Online submission is faster and provides a reference number. If mailing, use the claims mailing address on your ID card (not the general correspondence address).

What to Include With Your BCBS Claim

BCBS affiliates require all standard superbill fields. Be especially careful about:

• Provider NPI (Type 1 for individual therapists)
• Provider Tax ID (EIN or SSN) — some BCBS affiliates require this even for OON claims
• Your member ID number including any alpha prefix
• CPT code and ICD-10 diagnosis code (both required; neither alone is sufficient)
• Date(s) of service and place of service code
• Amount charged and amount you paid

State-Specific Variations to Know

Because each affiliate is independent, you may encounter different portals, timelines, and forms depending on your state:

• Anthem states (California, New York, Georgia, Virginia, and others): Use the Anthem member portal at anthem.com. Anthem is a BCBS licensee with its own separate guide — see our Anthem superbill guide.
• Highmark (Pennsylvania, West Virginia, Delaware): Use the Highmark member portal at highmark.com.
• HCSC affiliates (Illinois, Montana, New Mexico, Oklahoma, Texas): Use the state-specific portal (e.g., bcbsil.com for Illinois).
• Premera (Alaska, Washington): Use premera.com.

Common Issues With BCBS Claims

• Submitting to the wrong affiliate: If you live in one state but your employer is based in another, your plan may be administered by the employer's home-state affiliate. The alpha prefix on your ID card determines the correct affiliate.
• No OON mental health benefits: BCBS HMO plans generally do not cover OON services. PPO and EPO plans usually do. Check your Summary of Benefits and Coverage.
• Timely filing: Most BCBS affiliates require submission within 180 days of service, though some allow up to 365. Submit as soon as possible.

Tips for BCBS Superbill Submissions

• Always confirm the correct portal and mailing address with member services before your first submission — it varies enough between affiliates that guessing is risky.
• Take note of your OON deductible and whether any portion has already been met. BCBS plans typically apply OON deductibles separately from in-network deductibles.
• Review your EOB carefully when it arrives — BCBS affiliates sometimes apply a lower "allowed amount" for OON services, which affects your reimbursement calculation.
• If denied, you can appeal. The appeal process is the same whether your plan is administered by Anthem, HCSC, or another affiliate.

Superbilled generates superbills that meet the requirements of every major BCBS affiliate. Once your therapist provides the superbill, use the steps above to find your affiliate's portal and submit your claim.