Diagnosis was invalid for the date(s) of service reported.
Group code
CO or PI
Category
Coding
Risk level
High
Appealable
Yes
Common RARC pairings
RARCs (Remittance Advice Remark Codes) provide the specific reason detail alongside CARC 146 on the 835 electronic remittance. These are the RARCs seen most often with this CARC.
| RARC | Meaning |
|---|---|
| M64 | Missing/incomplete/invalid other diagnosis. |
| M76 | Missing/incomplete/invalid diagnosis or condition. |
| MA63 | Missing/incomplete/invalid principal diagnosis. |
| MA65 | Missing/incomplete/invalid admitting diagnosis. |
| N517 | Resubmit a new claim with the requested information. |
| N657 | This should be billed with the appropriate code for these services. |
See the full resolution workflow for CARC 146
Members of the EDI-Code Intelligence Lab get the step-by-step rework path, appeal language, root-cause drivers, and prevention checklist for every CARC and RARC pairing, plus payer-specific quirks.
Open in EDI Lab