X12 EDI Viewer and Converter

View X12 EDI 835 (ERA), 837 (claims), 834 and other HIPAA EDI transactions in a clean, human-readable format (examples). Export/convert EDI to CSV, Excel, or JSON (Examples; CSV column documentation; JSON schemas).

Displays 100% of EDI fields and automatically decodes CPT, ICD, UB, NDC, and other healthcare codes. Validates EDI, see validation messages under each invalid segment in the EDI view.

Free viewer’s limits: 25 KB files, up to 3 claims
Unrestricted viewer: large files, unlimited claims, search, analytics, and more. View demo and sign up for a trial.

Want to automate converting your files? Try our on-prem EDI Converter via API or CLI. The converter comes with an unrestricted version of the EDI Viewer.

Data Protection and HIPAA Compliance

  • The viewer does not store uploaded files. They are deleted automatically as soon as a file is rendered.
  • No PII/PHI information is written to the logs.
  • The viewer does not use a database; file processing is done in-memory.
  • Our instances are recycled every night.

Note: the viewer is a free tool; consider upgrading to our paid version and signing a Business Associate Agreement with us to ensure full compliance.

What’s new in the free version

  • Full validation of EDI files
  • Rendering of DME procedures; improved rendering of notes; rendering of attachments (PWK segment)
  • Support for post-adjudication claims (837 X298 and X299) and certification (conditions indicator) segments, including DME certification (837P CR3)
  • Rendering of outpatient and inpatient adjudication data (MOA/MIA segments); Purchase service info (PS1 segment); “pay-to address” for billing providers and “pay-to plan” for subrogation claims
  • Additional payment details for 835; more intuitive display of payment details and service lines
  • New export to CSV option for 837/835: repeat claim-level data on all lines, here is an example
  • We now support export of 834 files to CSV and Excel; see examples here
  • You can now export/convert 835/837 directly to Excel format without having to go through CSV. Click “Download CSV/Excel” and select an Excel option.
  • CSV column description and X12 EDI mapping (data dictionary) for 835 and 837P
  • Improved parsing of 810 and many other non-healthcare transactions.
  • Improved reporting of parsing warnings with segment and line numbers
  • CSV export for 837I (institutional/hospital claims)
  • You can now export only key fields for 835 and 837, select “Download CSV/Key Fields”