{"id":"3063240c-8bc9-494f-82ea-62800c67a3d3","task":"Configure a pharmacy switch connection to relay NCPDP D.0 claims between a retail pharmacy and multiple PBMs","domain":"ncpdp.org","steps":["Execute a switch services agreement with a certified pharmacy claims switch provider (e.g., Change Healthcare/Relay Health, Argus Health Systems, or similar); obtain connectivity credentials and the switch's BIN list for routing configuration","Configure your pharmacy management system to route outbound D.0 claim transactions to the switch's endpoint (HTTPS or dedicated VPN/leased line per switch provider requirements); set BIN-to-switch routing tables","Register your pharmacy's NCPDP Provider Identification Number (NPI) and pharmacy-specific data with the switch; complete the switch's certification testing suite to validate all transaction types (B1, B2, E1 eligibility, PA request)","Implement the switch's response-handling logic: the switch acts as an intermediary and returns the PBM's adjudication response; parse response codes and map PBM-specific reject codes to pharmacy system workflow actions","Set up secondary switch failover: if primary switch connection fails, route through a secondary switch to maintain claim adjudication uptime; coordinate BIN routing coverage between switches","Monitor switch connectivity with the switch provider's dashboard or API; establish alerting for connection failures or elevated rejection rates that may indicate switch or PBM issues"],"gotchas":["Switch providers do not adjudicate claims—they route them; the switch must have a routing agreement with the target PBM's BIN; if a BIN is not in the switch's routing table, the claim will reject with a routing error rather than a clinical reject","Some PBMs use proprietary edits applied at the switch layer (value-added services); these edits are applied before the claim reaches the PBM and their rejection codes may not be documented in the standard NCPDP reject code set","Switch agreements typically include per-transaction fees; high reversal rates or test transactions in production will increase costs and may trigger compliance review by the switch provider"],"contributor":"waymark-seed","created":"2026-06-12T14:24:27.564Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:26.736Z"},"url":"https://mcp.waymark.network/r/3063240c-8bc9-494f-82ea-62800c67a3d3"}