AK9-R | Functional Group Rejected

Industry

Insurance

Canonical

/insurance/claims-processing/error-codes/ak9-r/

Last Updated

Apr 16, 2026

Summary

AK9-R means the X12 functional group (GS/GE) was rejected due to syntax errors.

Learn More

Use these links to pivot between the directory, a focused guide, and nearby related codes.

Hub

Insurance
Claims Processing

Guides

Insurance Claims Processing Errors: Causes, Codes & Solutions
EDI 837 & 835 Errors in Insurance: Complete Troubleshooting Guide

Related Codes

AK5-R — Transaction Set Rejected
AK9-E — Functional Group Accepted, But Errors Were Noted
AK9-A — Functional Group Accepted
AK9-P — Partially Accepted
AK5-E — Accepted But Errors Were Noted

What This Code Means

When AK9 reports “R,” the receiver rejected the entire functional group (GS/GE). In most workflows, that means none of the transaction sets inside the group should be considered delivered for processing, even if the interchange (ISA/IEA) was received.

Common causes

Functional group not supported (wrong GS01) or version not supported

Group control numbers mismatch (GS06/GE02) or trailer missing

Related Codes

8 links

AK5-R Code

Transaction Set Rejected
AK9-E Code

Functional Group Accepted, But Errors Were Noted
AK9-A Code

Functional Group Accepted
AK9-P Code

Partially Accepted
AK5-E Code

Accepted But Errors Were Noted
AK9-M Code

Group Rejected (MAC Failed)
AK9-W Code

Group Rejected (Assurance Failed)
AK9-X Code

Group Rejected (Decryption Content Unreadable)