These codes provide additional explanation for an adjustment already described by a Claim Adjustment Reason Code (CARC) or convey information about remittance processing.

Feb 4, 2026 · See a complete list of all current and deactivated Claim Adjustment Reason Codes and Remittance Advice Remark Codes on the X12.org website. (These code lists were previously …

Sep 18, 2023 · Claim adjustment reason codes, remittance remark codes, group codes, as well as other transaction and code set information, is available here: External code lists | X12.

The X12 Claim Adjustment Reason Codes describe why a claim or service line was paid differently than it was billed. These codes are listed within an X12 implementation guide (TR3) and maintained by X12.

Jan 1, 1995 · These codes describe why a claim or service line was paid differently than it was billed. Did you receive a code from a health plan, such as: PR32 or CO286? If so read About Claim …

Apr 2, 2025 · View Remittance Advice resources and access the X12 issued reason and remark codes.

Oct 31, 2025 · These codes are listed within an X12 implementation guide (TR3) and maintained by X12.

Mar 28, 2024 · The IISRC is a new external code list and provides a set of specific remark codes related to certain industry segments e.g., the dental industry or Property & Casualty – Maintained by X12

Jan 1, 1995 · Chartered by the American National Standards Institute for more than 40 years, X12 develops and maintains EDI standards and XML schemas which drive business processes globally.

The table below includes external code lists maintained by X12 and external code lists maintained by others and distributed by WPC on behalf of the maintainer. Click on the name of any external code …