Vendor
Health Care Service Corp (BCBS IL/TX/OK/NM/MT)
Payers. Payer IDs by state: BCBSIL 00621 / BCBSTX 84980 / BCBSOK 84105 / BCBSNM 84980 / BCBSMT 00751 (institutional variants differ; see companion guide).
https://www.hcsc.comSupported transactions
Per-transaction requirements
Transaction 837P
Details →ISA05/07 = ZZ/ZZ · GS01 = HC · GS08 = 005010X222A1
2 required · 0 fixed values