Appealant

By Appealant Billing & RCM Team · Reviewed by Appealant Billing & RCM Team · Verified against primary sources 2026-07-04

CARC 23 denial code: meaning & whether to appeal (verified)

What CARC 23 means

The impact of prior payer(s) adjudication including payments and/or adjustments.

Verbatim description from the official X12 Claim Adjustment Reason Codes list.

Classification

Denial class: coordination of benefits

Appealability verdict

Appealable — coordination of benefits

What to know

Usually resolved by establishing the correct order of benefits — the other carrier's explanation of benefits and current coverage records are the key documents.