How to Read an 835 ERA File

Direct answer: To read an 835 ERA file, identify the payer and payment total, review each claim status, inspect service-line payments, then use CARC/RARC codes to understand adjustments and denials.

Step-by-step review

1. Confirm payer name, payment date, and check or EFT trace number.
2. Compare the total payment amount to the deposit or expected deposit.
3. Review paid, denied, and underpaid claim counts.
4. Open claim-level detail for billed, allowed, paid, adjusted, and patient responsibility amounts.
5. Review service-line payment and adjustment details.
6. Separate provider-level adjustments from claim payments.
7. Flag unmatched claims or missing payments for follow-up.

Why raw 835 text is hard to read

Raw 835 files are X12 transaction files. They are useful for systems, but difficult for billing staff to review without a parser or remittance advice dashboard. Important information can be spread across segments instead of displayed as normal billing work.

Dashboard fields to look for

• Total payment amount
• Payer and EFT number
• Claim status
• Service-line paid amount
• CARC/RARC denial reasons
• Patient responsibility
• Unmatched claims