Vendor
Express Scripts (ESI)
PBMs & pharmacy networks. BIN 003858 / 610014 among others; PCN varies by plan. Owns Accredo specialty.
https://www.express-scripts.comSupported transactions
NCPDP-D0-B1NCPDP-D0-B2NCPDP-D0-B3NCPDP-D0-E1NCPDP-D0-P1NCPDP-D0-P4NCPDP-RTPBNCPDP-FORMULARYNCPDP-POST-ADJ
Per-transaction requirements
Transaction NCPDP-D0-B1
Details →ISA05/07 = —/— · GS01 = RX · GS08 = NCPDP D.0
4 required · 2 fixed values