# Claim edit: Invalid revenue code

> Stedi rejects 837I institutional claims with invalid revenue codes. These standard, 4-digit codes identify the type of room, service, or supply billed.

Published Dec 9, 2025

Product: Claim edits

Stedi now rejects [837I institutional claims](https://www.stedi.com/docs/healthcare/submit-institutional-claims) that contain an invalid service line revenue code.

Revenue codes are standardized, 4-digit codes that hospitals and other care facilities use to identify the type of room, service, or supply billed on a service line. Example revenue codes include:

- `0450` – Emergency Room

- `0360` – Operating Room Services

- `0300` – Laboratory

Revenue codes are different from procedure codes, such as CPT or HCPCS codes. A procedure code describes what kind of care was delivered. A revenue code describes the type of facility associated with the charge.

Revenue codes are maintained by the [National Uniform Billing Committee (NUBC)](https://www.nubc.org/). They are always 4 digits and start with a `0`, `1`, `2`, or `3`.

Revenue codes often drive how payers price and reimburse institutional claims. If a claim includes an invalid revenue code, the payers may reject the claim, which can delay payment.

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

**When this edit applies**  
An institutional claim fails this edit if a service line revenue code:

- Is not exactly 4 digits

- Does not start with a `0`, `1`, `2`, or `3`

If you're using Stedi’s [JSON institutional claim submission endpoint](https://www.stedi.com/docs/healthcare/api-reference/post-healthcare-institutional-claims), you provide the revenue code in the [`serviceLineRevenueCode`](https://www.stedi.com/docs/healthcare/api-reference/post-healthcare-institutional-claims#body.claimInformation.serviceLines.lineAdjudicationInformation.serviceLineRevenueCode) field for the service line.

In raw X12, you provide the revenue code for a service line in `SV2-01` (Service Line Revenue Code) of `Loop 2400` (Service Line Number).

**Rejection errors**  
If you submit an institutional claim that fails the edit using Stedi’s [institutional claim submission API endpoints](https://www.stedi.com/docs/healthcare/intro-to-claim-submission#api-claim-submission), you’ll get back an error message in real time. If you’re using the [JSON API endpoint](https://www.stedi.com/docs/healthcare/api-reference/post-healthcare-institutional-claims), the response includes error details in the `errors` array:

```jsonc
{
  "errors": [
    {
      "code": "33",
      "description": "The Revenue Code value does not match the required format. Revenue codes must be 4 digits and have a valid leading digit of 0, 1, 2, or 3. Please review and resubmit.",
      "followupAction": "Please Correct and Resubmit"
    }
  ]
}
```

If you submit an institutional claim that fails the edit using SFTP, Stedi will reject the claim with a [277CA claim acknowledgment](https://www.stedi.com/docs/healthcare/claim-responses-overview#277ca-claim-acknowledgment). The acknowledgment will contain a related claim status category code, claim status code, and error message. You can use the error message to correct and resubmit the claim.