Our Electronic Data Interchange (EDI) Companion Guides describe specific requirements for trading partners who exchange electronic transactions directly with Blue Shield of California or Blue Shield of California Promise Health Plan. Our companion guides contain only supplementary instructions to the ASC X12 national implementation guides and do not replace or modify the implementation guides.
Follow the instructions found in these companion guides to ensure effective and efficient processing of your transactions.
For Blue Shield of California Promise Health Plan providers
Find specific requirements for trading partners who exchange electronic transactions directly with Blue Shield of California Promise Health Plan (not through a vendor or clearinghouse).
For Blue Shield of California providers
You can find and download the companion guides for the appropriate transactions in the list below.
HIPAA transaction type
Companion guide (5010 version)
|837 Electronic Claim Submission||
BSC 837 EDI Companion Guide (PDF 782 KB)
|835 Electronic Remittance Advice||
835 Guide (PDF 882 KB)
|270/271 Eligibility & Benefits Inquiry/Response||
270/271 Guide (PDF 1.2 MB)
|276/277 Claim Status Inquiry/Response||
276/277 Guide (PDF 1.1 MB)
|277CA Claim Status Information - Secondary|
278 Guide (PDF 361 KB)