What this page is for

If you already run a different billing system and want to see how its 837 output compares to what Billing produces for the same claim, you can upload the external 837 here. The file is parsed into individual claims that you can open and compare side-by-side with Billing's own 837. This is a comparison and audit tool — the external claims are not turned into real claims in Billing.

How to upload

  1. Open the external imports URL at /nemsis/external-837 (this page is not currently linked in the Imports/Exports sub-navigation — ask your system admin if you cannot find it).
  2. Click Choose File and select an 837 file (.edi or .txt).
  3. Click Upload & Parse.
  4. The page lists every uploaded file with a claim count, and every parsed claim underneath.

Comparing claims

From a claim in Billing that was imported from the same run, use the 837 Compare link to view both the external 837 (accepted by your old system) and Billing's own 837 side-by-side. This helps you spot formatting or field-level differences before you go live.

Tips

  • Only 837 Professional files are supported. 835 remittance files go through Remits instead, and 270/271 eligibility files go through the Eligibility page.
  • If a file fails to parse, open it in a text editor and make sure it begins with ISA* — some systems wrap it in envelopes or XML.