Provider/Supplier Type(s) Impacted: Providers billing endovascular procedures performed in office-based settings.

Reason Codes: Not applicable.

Claim Coding Impact: 37254-37299

Description of Issue: Effective January 1, 2026, CPT code changes for certain endovascular procedures resulted in an inadvertent claims processing error. This error caused some claims for services performed in office-based settings to deny incorrectly.

Noridian Action Required: Claims will be reprocessed. No further action is required from providers at this time.

02/13/26 - Noridian initiated mass adjustments on 02/06/26.

02/23/26 - Noridian initiated the remaining mass adjustments on 02/20/26.

Provider/Supplier Action Required: No provider action is needed to correct the claims. Providers should not resubmit claims unless otherwise instructed.

Proposed Resolution/Solution: Claims will be reprocessed via mass adjustments.

Date Reported: 02/04/26

Date Resolved: 02/23/26