Claim edit: Line item control numbers must be unique

Stedi now rejects 837P professional, 837D dental, and 837I institutional claims that contain duplicate line item control numbers.

How the edit works

In a claim, a service line represents billing for one specific service, procedure, or supply – for example, an office visit or a dental filling. Each service line represents a separate billable event.

A line item control number is a provider-assigned identifier for a specific service line.

Within a claim, each service line must have a unique line item control number. Payers and providers use line item control numbers to track service lines across claim submissions, claim acknowledgments, and Electronic Remittance Advice (ERAs).

Payers may reject claims with duplicate line item control numbers, which can cause payment delays.

This edit – the industry’s term for an automated validation rule – catches the issue before it reaches the payer.

Where to find line item control numbers

• JSON API

  • Professional claims JSON endpoint: claimInformation.serviceLines.providerControlNumber

  • Dental claims JSON endpoint: claimInformation.serviceLines.providerControlNumber

  • Institutional claims JSON endpoint: claimInformation.serviceLines.lineItemControlNumber
    

• Raw X12
  REF-02 (Line Item Control Number) of Loop 2400 (Service Line Number)

• Stedi portal
  Professional claims submitted through Stedi's CMS-1500 form can’t fail this edit. The form requires manually entered control numbers to be unique.

Rejection errors

If you submit a claim that fails the edit using Stedi’s claim submission APIs, you’ll get back an error message in real time. If you’re using a JSON API endpoint, the response includes error details in the errors array:

{
  "errors": [
    {
      "code": "33",
      "description": "Invalid Line-Item Control Numbers. Each line-item control number must be unique within the claim. Control numbers, 12345, 67890, have been used more than once. Correct and resubmit.",
      "followupAction": "Please Correct and Resubmit"
    }
  ]
}

If you submit a claim that fails the edit using SFTP, Stedi will reject the claim with a 277CA claim acknowledgment. The acknowledgment will include a related claim status category code, claim status code, and error message:

STC*A7>584*[DATE]*U*[AMOUNT]********Invalid Line-Item Control Numbers. Each line-item control number must be unique within the claim. Control numbers, 12345, 67890, have been used more than once. Correct and resubmit.~