RARC N321 Active Supplemental
RARC N321: Missing or Invalid Last Admission Period
What This Means
The claim is missing, has incomplete, or contains an invalid last admission period. The payer requires accurate admission dates to properly adjudicate the claim, especially for inpatient or facility-based services. Review the claim form for correct admission and discharge dates, correct any errors, and resubmit.
Disclaimer
This content is for informational purposes only. Always verify against your payer contracts and current coding guidelines. Commonly Paired With
RARC N321 commonly appears alongside these CARC denial codes:
| Code | Name | |
|---|---|---|
| CO-31 | Patient Not Identified as Insured | → |
| CO-32 | Patient Not Eligible as Dependent (also PR-32, OA-32) | → |
| CO-33 | Insured Has No Dependent Coverage (also PR-33) | → |
| CO-34 | No Newborn Coverage (also PR-34) | → |