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Editing the CMS-1500 Claim Form for Primary Submissions and Resubmissions

This article explains how to edit CMS-1500 claim fields directly within PM before posting or during resubmission.

Overview

This article explains how to edit CMS-1500 claim fields directly within PM before posting or during resubmission. You'll learn which fields are editable, where to find the new edit option, and how changes are tracked for auditability. This means your billing team can make targeted corrections to claims without having to regenerate them from scratch.

Why This Matters

Small errors on a claim — an incorrect referring provider, a missing modifier, or a billing detail that needs updating — used to mean regenerating the entire claim just to fix one field. That added time, effort, and risk to an already busy billing workflow. Now, your team can go directly to the field that needs updating, make the correction, and move forward — saving significant time and reducing resubmission turnaround.

Which Fields Are Editable

The following CMS-1500 boxes can be edited directly:

Box(es) Field
0, 1, 1a Patient and insured details
17, 17b Referring provider details
19, 23 Additional claim information
24D, 24I, 24J Modifiers and provider details
31, 32, 32a, 33, 33a, 33b Billing and facility details
22 Resubmission code (resubmission flow only)

 

Tip: Fields that are editable are highlighted in green within the claim edit popup — making it easy to see at a glance what can be updated.

How to Edit a Claim Before Posting

  1. Navigate to Billing → Unposted Batches
  2. Locate the invoice you need to update
  3. Click the pencil icon to open the claim edit popup
  4. Update the relevant fields — editable fields are highlighted in green
  5. Save your changes and proceed to post as usual

How to Edit a Claim During Resubmission

  1. Navigate to the resubmission flow via Billing → Posted Invoices or Collections
  2. Select "Generate, Edit & Post" instead of the standard resubmission option
  3. Update the required fields, including Box 22 (Resubmission Code) if applicable
  4. Save and proceed to post

Where You'll See This

  • Billing → Unposted Batches (pencil icon on invoices)
  • Billing → Posted Invoices and Collections (manual edit "M" indicator)
  • Resubmission flow ("Generate, Edit & Post" option)
  • CMS-1500 form, EDI 837, and billing reports

Important Things to Know

  • Every manual edit is marked with an "M" indicator on the claim so downstream reviewers can easily identify which claims were manually adjusted.
  • All edits are logged in the invoice timeline, giving your team a full audit trail of what was changed and when.
  • Edits flow through to the CMS-1500 form, EDI 837, and associated reports — so what you see in the system reflects what is submitted to the payer.
  • Box 22 (Resubmission Code) is only editable during the resubmission flow, not during standard pre-posting edits.

 

Last Updated: 5/21/26 by Tatum Winslow