Status code 496 means the payer has not approved your submitter, usually your clearinghouse, to send electronic claims for this provider. It is an EDI enrollment problem, not a claim data problem, so the claim will keep rejecting until enrollment is complete.
What does status code 496 mean?
X12 claim status code 496 reads: “Submitter not approved for electronic claim submissions on behalf of this entity. Usage: This code requires use of an Entity Code.” It is published in the X12 Claim Status Codes list (opens in a new tab). Many payers require a separate EDI enrollment for each provider or group before accepting electronic claims through a clearinghouse.
On the raw 277CA it appears in the STC segment, for example STC*A3:496:85: the claim status category, then the status code, then the entity code when one is required. A rejected claim never entered the payer’s claims system, so there is nothing to appeal: you fix the data and send the claim again.
Common causes
| Cause | What to check |
|---|---|
| EDI enrollment never submitted for this payer | Clearinghouse enrollment status |
| New provider or location not added to the existing enrollment | Enrollment by NPI and tax ID |
| Practice switched clearinghouses | Enrollment with the new clearinghouse |
| Enrollment pending approval | Payer or clearinghouse enrollment portal |
How to fix it
- Check the entity code to see whether the billing provider (85) or the submitter (41) is not approved.
- Ask your clearinghouse for the EDI enrollment status with this payer.
- Complete or update the enrollment for the NPI and tax ID on the claim.
- Once approved, resubmit the held claims as new claims, oldest first.
How to prevent it
- Make EDI enrollment part of onboarding for every new provider and location.
- Enroll with all active payers before switching clearinghouses.
- Track enrollment approvals alongside credentialing.
Frequently asked questions
Is EDI enrollment the same as credentialing?
No. Credentialing makes the provider a participating provider. EDI enrollment authorizes electronic claims and, separately, ERAs.
Can I send paper claims while enrollment is pending?
Some payers accept paper claims in the meantime. Check the payer’s rules, and watch timely filing.
Related claim rejection guides
- 277CA claim acknowledgment: how to read a rejection
- Status 33: subscriber and subscriber ID not found
- Status 562: Entity’s National Provider Identifier (NPI)
- Status 116: claim submitted to incorrect payer
- Status 128: Entity’s tax ID
- Status 145: Entity’s specialty/taxonomy code
- “This code requires use of an Entity Code”
Status code wording is quoted from the X12 Claim Status Codes list (opens in a new tab) at the time of writing. Clearinghouse reports may show the same codes with slightly different text.
Claims stuck behind EDI enrollment?
We handle EDI and ERA enrollment with each payer as part of provider onboarding.