Official X12 description
“Patient ineligible for this service.”
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 N30 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.
| Paired CARC | What the CARC means |
|---|---|
| CARC 26 | Expenses incurred prior to coverage. |
| CARC 27 | Expenses incurred after coverage terminated. |
| CARC 31 | Patient cannot be identified as our insured. |
| CARC 32 | Our records indicate that this dependent is not an eligible dependent as defined. |
| CARC 177 | Patient has not met the required eligibility requirements. |
| CARC 178 | Payment adjusted because the patient has not met the required spend down requirements. |
| CARC 180 | Patient has not met the required residency requirements. |
| CARC 200 | Expenses incurred during lapse in coverage. |
What RARC N30 actually means
RARC N30 accompanies eligibility denials — the patient isn't eligible for the specific service under the plan's benefit rules (age, gender, riders, waiting period, residency). Confirm the specific eligibility lever from the companion CARC and rework accordingly.
Common root causes
- Plan rider/category exclusion.
- Waiting period or residency requirement not met.
- Age/gender eligibility rule.
Prevention checklist
- Granular eligibility verification at scheduling.
Resolution & appeal strategy — step by step
Because RARC N30 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.
- 1Submit eligibility documentation for the specific lever, or rebill correct payer.
Sample reconsideration language referencing RARC N30
Edit the bracketed fields before sending. Payer-specific reconsideration forms are often required — check the provider portal first.
How common is RARC N30?
Platform frequency ranks publish once the anonymized denial-rate pipeline reaches the publication threshold (strategy §12 Phase 2).
How QuickRCM handles RARC N30
QuickRCM reads RARC N30 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 N30
What does RARC N30 mean?
RARC N30 is an X12 Remittance Advice Remark Code. The official X12 definition is: "Patient ineligible for this service." It is supplemental to a Claim Adjustment Reason Code (CARC) on the same 835 line.
Which CARC is paired with RARC N30?
RARC N30 is most commonly paired with CARC 26, CARC 27, CARC 31, CARC 32, CARC 177, CARC 178, CARC 180, CARC 200. 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 N30 remark on a remit?
Start from the root cause: Plan rider/category exclusion. First step: Submit eligibility documentation for the specific lever, or rebill correct payer. Because RARCs are supplemental, the resolution is almost always to address the paired CARC rather than appeal the RARC alone.
Where does RARC N30 appear on the 835 ERA?
RARC N30 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 N30 the same as ICD-10 code N30?
No. RARC N30 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.