Blue Cross and Blue Shield of Illinois
Also covers / subsidiaries: BCBSIL, BCBS of Illinois
Core Payer & Clearinghouse Profile
Electronic Payer ID
ILBC0
621/00621 covers 837P and 837I via Availity; leading-zero padding varies by clearinghouse.
Timely Filing Limit (TFL)
Varies — confirm via portal / clearinghouse
Appeal Window
Provider claim review/appeal via Availity and BCBSIL channels; windows vary by product
Clearinghouse Gateway
Availity
Provider Services
800-972-8088
Claims Fax
Varies — confirm via portal / clearinghouse
Claims Address
BCBSIL, PO Box 660603, Dallas, TX 75266-0603 (commercial paper claims)
Provider Portal
https://www.bcbsil.com/provider
HCSC-operated Illinois Blue plan; claims routing differs by product.
National EDI Clearinghouse Capabilities
Direct ANSI X12 electronic transaction support verified for Blue Cross and Blue Shield of Illinois.
Associated Clearinghouse Payer IDs
National clearinghouse networks maintain dedicated routing IDs for specific transaction lines or subsidiaries under Blue Cross and Blue Shield of Illinois.
| Clearinghouse Name | Electronic Payer ID | Status | Enrollment | Supported Services |
|---|---|---|---|---|
| Bcbs Of Illinois | 10033 | Non-Par | None | 276/277 |
| Blue Cross Blue Shield Of Illinois | ILBC0 | Non-Par | Required | 837P837I835 ERADental |
| Blue Cross Blue Shield Of Illinois | ILBC1 | Non-Par | Required | 837P |
Resolution Tools for Blue Cross and Blue Shield of Illinois Claims
Values vary by plan, line of business, and provider agreement. Confirm in the payer portal or with your clearinghouse gateway before submitting electronic claims.
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