If you're new to electronic billing, the terminology runs together — EDI, clearinghouse, 837, 835. They're three different things, and knowing which is which explains why Mindbill is set up the way it is. The short version: EDI is the file format, a clearinghouse is the delivery network, and Mindbill is the billing system that creates the files and picks the network. Here's each piece, and why multi-clearinghouse routing is the part that actually affects whether you get paid.
EDI — Electronic Data Interchange — is the standard format for billing data. California workers' comp uses ASC X12 5010, which defines a specific set of transactions: 837P (the professional claim — your bill), 999 (functional acknowledgment — received OK), 277CA (claim acknowledgment — payer accepted it), 277 (claim status — in process / paid / denied), and 835 (electronic remittance advice — the payment details and adjustment codes). EDI is JUST a format. A correctly-formed 837P says nothing about where the bill should go — it's a sealed envelope with no address.
A clearinghouse is the middleman that takes your EDI files, knows which payer each one routes to, delivers it, and translates the payer's inbound EDI (the acks and remittances) back to you. For California WC the major ones are Carisk Intelligent Clearinghouse (primary), Jopari Solutions (alternate), Data Dimensions (a hybrid mailroom + EDI service for paper-only payers), CorVel Direct (CorVel-administered claims only), and US DOL OWCP (federal employees only). The clearinghouse is what puts the address on the envelope and carries it.
Mindbill is NOT a clearinghouse — it's the billing system that generates the X12 5010 EDI and hands it off to the right clearinghouse. It writes the 837P from your bill, picks the clearinghouse per payer automatically, transmits it, and parses every inbound ack and ERA back onto the bill. The practical upshot: on Mindbill you never think about EDI segments or clearinghouse routing. You enter a bill and click Send; the format-generation and network-selection happen underneath.
No single clearinghouse reaches every California WC payer. Carisk covers roughly 85%, Jopari roughly 75% with heavy overlap, and Data Dimensions handles paper-only payers like some self-insured employers. A vendor wired to one clearinghouse — which most legacy systems are — silently misses 5–15% of payers entirely: those bills either fail or fall back to manual paper. Mindbill auto-routes per payer across all of them using its 1,341-entry payer directory, which is the difference between 'most of my bills go out electronically' and 'all of them do.'
Here's the whole chain in one bill: you enter the bill in Mindbill (the author) → Mindbill generates the 837P (the EDI format) and selects Carisk or Jopari for that payer (the clearinghouse) → the clearinghouse delivers it and returns a 999, then a 277CA, then a 277, then an 835 → Mindbill parses each back onto the bill and posts the payment. You touched the bill once; the format, the routing, and the round-trip of acknowledgments were all handled for you.
A 15-minute demo on your workflow — bill entry, second review, and reporting. No slides.