Official X12 description
“Alert: Patient was transferred. Medicare Advantage plan (Part C) or Private Fee-For-Service is the primary payer.”
Source: X12 Remittance Advice Remark Codes. X12 publishes and maintains the RARC set; always verify against the current release before building a claim workflow.
Paired CARC codes
RARC N788 almost never appears alone — it accompanies one of the CARCs below on the same 835 remittance line. Fix the CARC and the RARC typically clears; the RARC alone is informational.
What RARC N788 actually means
RARC N788 indicates MA/PFFS plan is primary after transfer. Route to Part C/PFFS payer.
Common root causes
- Patient transferred; MA primary responsibility.
Prevention checklist
- MA enrollment check at registration.
Resolution & appeal strategy — step by step
Because RARC N788 is supplemental to a CARC, the resolution path usually starts by fixing the underlying adjustment reason. A formal appeal of the RARC alone is rarely necessary.
- 1Rebill to MA plan.
Sample reconsideration language referencing RARC N788
Edit the bracketed fields before sending. Payer-specific reconsideration forms are often required — check the provider portal first.
How common is RARC N788?
Platform frequency ranks publish once the anonymized denial-rate pipeline reaches the publication threshold (strategy §12 Phase 2).
How QuickRCM handles RARC N788
QuickRCM reads RARC N788 alongside its paired CARC in the 835 LQ segment and routes the line to the correct worker queue with the right documentation already attached:
- Denial routing rules tuned to the CARC+RARC pair — the paired combination tells QuickRCM which documentation the payer will accept.
- Reconsideration template for this exact remark code pulls the supporting facts from the claim automatically.
- Pre-submission scrubs that catch the preventable drivers surfaced on this page before the 837 leaves the clearinghouse.
Frequently asked questions — RARC N788
What does RARC N788 mean?
RARC N788 is an X12 Remittance Advice Remark Code. The official X12 definition is: "Alert: Patient was transferred. Medicare Advantage plan (Part C) or Private Fee-For-Service is the primary payer." It is supplemental to a Claim Adjustment Reason Code (CARC) on the same 835 line.
Which CARC is paired with RARC N788?
RARC N788 is most commonly paired with CARC 22, CARC 109. The CARC is the financial adjustment reason; the RARC is the informational remark. Fix the paired CARC first — the RARC usually clears with the corrected claim.
How do I resolve a RARC N788 remark on a remit?
Start from the root cause: Patient transferred; MA primary responsibility. First step: Rebill to MA plan. Because RARCs are supplemental, the resolution is almost always to address the paired CARC rather than appeal the RARC alone.
Where does RARC N788 appear on the 835 ERA?
RARC N788 is carried on the 835 Loop 2110 LQ segment alongside the CARC in the CAS segment of the same service line. The code and its X12 description also print on the paper EOB in the "Remark Code" or "Remark" column next to the corresponding denial or adjustment reason.
Is RARC N788 the same as ICD-10 code N788?
No. RARC N788 is a remittance-advice remark code published by X12 and carried on the 835. Any ICD-10 code with the same letters and digits is a diagnosis code on the 837 HI segment — a completely different code set maintained by the WHO/CMS. Use the transaction context (835 = RARC; 837 = ICD-10) to disambiguate.
Disclaimer
This page is operational reference for medical-billing professionals. It is not legal, clinical, or contractual advice. X12 code descriptors are maintained by the X12 External Code Lists; always verify against the current X12 release and the payer's own published policy before submitting or appealing a claim.