N522 – Alert: Information Submitted Does Not Support Medical Necessity

The N522 RARC code indicates that the documentation or information submitted with the claim does not support the medical necessity of the billed service. This Remittance Advice Remark Code (RARC) provides additional information about a claim adjustment and is typically reported with a Claim Adjustment Reason Code (CARC).

Providers should review the associated CARC, clinical documentation, and payer medical necessity guidelines before submitting a corrected claim or appeal.

Quick Facts

RARC Code
N522

Code Type
Remittance Advice Remark Code (RARC)

Category
Medical Necessity

Meaning
Submitted documentation does not support medical necessity

Common Payers
Medicare, Medicaid, and Commercial Insurance

Next Step
Review clinical documentation and payer medical necessity requirements before resubmitting or appealing the claim

What Does the N522 RARC Code Mean?

The N522 RARC code indicates that the payer determined the documentation submitted with the claim does not adequately demonstrate that the billed service was medically necessary.

This remark code provides additional clarification regarding the payment decision and should always be reviewed alongside the associated CARC.

Common Causes

Providers may receive the N522 RARC code when:

  • Clinical documentation is incomplete.

  • Documentation does not support the diagnosis.

  • Medical necessity requirements are not met.

  • Required records were not submitted.

  • Payer coverage policies were not followed.

How To Resolve the N522 RARC Code

If you receive the N522 remark code:

  • Review the associated CARC.

  • Compare the documentation with the billed services.

  • Review payer medical necessity policies.

  • Submit additional supporting documentation if appropriate.

  • Appeal the decision when documentation supports medical necessity.

Common Billing Mistakes

Common issues associated with the N522 RARC code include:

  • Missing physician documentation.

  • Incomplete medical records.

  • Diagnosis codes that do not support the service.

  • Failure to review payer coverage guidelines.

  • Appealing without additional supporting documentation.

Frequently Asked Questions

Does N522 always require an appeal?

No. Providers should first determine whether additional documentation can support the service before deciding whether to appeal.

What documentation should providers review?

Clinical notes, physician documentation, diagnostic results, and any records supporting medical necessity should be reviewed.

Can additional records overturn the adjustment?

In some cases, yes. Additional documentation may demonstrate that the service met the payer's medical necessity requirements.

Should providers review payer policies before resubmitting?

Yes. Reviewing payer-specific medical necessity guidelines helps determine whether additional documentation is needed.

Related RARC Codes

You may also encounter:

Quick Summary

The N522 RARC code indicates that the submitted documentation does not support the medical necessity of the billed service. Reviewing clinical records, payer policies, and the associated CARC can help determine the appropriate next steps.

Medical billing denial codes, insurance prefixes, and claim guidance in one searchable resource hub.

© 2026. All rights reserved.

Quick Links

Resources

About DenialCodeLookup

Terms and Conditions

Privacy Policy