Browse all standardized Remark Codes (RARC) used on Medicare, Medicaid, and commercial payer remittance advice (835 ERA / EOB). Each code includes its RA835 mapping, adjustment group, reason code, and a dedicated resolution guide.
Browse Claim Adjustment Reason Codes — the codes that explain why a payment was reduced or denied.
| Remark Code | Description | RA835 Code | Group | Reason Code | |
|---|---|---|---|---|---|
| 94 | PROCESSED IN EXCESS OF CHARGES. | N14 | CO | 94 | View → |
| 95 | PLAN PROCEDURES NOT FOLLOWED. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 95 | View → |
| 96 | NON-COVERED CHARGE(S). AT LEAST ONE REMARK CODE MUST BE PROVIDED (MAY BE COMPRISED OF EITHER THE RE… |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 96 | View → |
| 97 | THE BENEFIT FOR THIS SERVICE IS INCLUDED IN THE PAYMENT/ALLOWANCE FOR ANOTHER SERVICE/PROCEDURE THA… |
N19
Procedure code incidental to primary procedure. |
CO | 97 | View → |
| 100D | DME SERVICE EXCEEDS QUANTITIY LIMITS. SVC LIMITED TO 100 PER 30 DAYS |
N362
The number of Days or Units of Service exceeds our acc… |
CO | 222 | View → |
| 102 | MAJOR MEDICAL ADJUSTMENT. | — | CO | 102 | View → |
| 103 | PROVIDER PROMOTIONAL DISCOUNT (E.G., SENIOR CITIZEN DISCOUNT). | — | CO | 103 | View → |
| 104 | MANAGED CARE WITHHOLDING. | — | CO | 104 | View → |
| 105 | TAX WITHHOLDING. | — | CO | 105 | View → |
| 107 | THE RELATED OR QUALIFYING CLAIM/SERVICE WAS NOT IDENTIFIED ON THIS CLAIM. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 107 | View → |
| 108 | RENT/PURCHASE GUIDELINES WERE NOT MET. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 108 | View → |
| 109 | CLAIM NOT COVERED BY THIS PAYER/CONTRACTOR. YOU MUST SEND THE CLAIM TO THE CORRECT PAYER/CONTRACTOR. |
N418
Misrouted claim. See the payer's claim submission ins… |
CO | 109 | View → |
| 110 | INVALID SERVICE DATE, GREATER THAN TODAY'S DATE |
MA31
Missing/incomplete/invalid beginning and ending dates … |
CO | 16 | View → |
| 111 | NOT COVERED UNLESS THE PROVIDER ACCEPTS ASSIGNMENT. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 111 | View → |
| 112 | SERVICE NOT FURNISHED DIRECTLY TO THE PATIENT AND/OR NOT DOCUMENTED. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 112 | View → |
| 115 | PROCEDURE POSTPONED, CANCELED, OR DELAYED. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 115 | View → |
| 116 | THE ADVANCE INDEMNIFICATION NOTICE SIGNED BY THE PATIENT DID NOT COMPLY WITH REQUIREMENTS. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 116 | View → |
| 117 | TRANSPORTATION IS ONLY COVERED TO THE CLOSEST FACILITY THAT CAN PROVIDE THE NECESSARY CARE. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 117 | View → |
| 118 | ESRD NETWORK SUPPORT ADJUSTMENT. | — | CO | 118 | View → |
| 121 | INDEMNIFICATION ADJUSTMENT - COMPENSATION FOR OUTSTANDING MEMBER RESPONSIBILITY. |
N432
Alert: Adjustment based on a Recovery Audit. |
CO | 121 | View → |
| 122 | PSYCHIATRIC REDUCTION. | — | CO | 122 | View → |
| 125 | SUBMISSION/BILLING ERROR(S). AT LEAST ONE REMARK CODE MUST BE PROVIDED (MAY BE COMPRISED OF EITHER… |
M81
You are required to code to the highest level of speci… |
CO | 16 | View → |
| 130 | CLAIM SUBMISSION FEE. | — | CO | 130 | View → |
| 131 | CLAIM SPECIFIC NEGOTIATED DISCOUNT. | N14 | CO | 131 | View → |
| 132 | PREARRANGED DEMONSTRATION PROJECT ADJUSTMENT. | — | CO | 132 | View → |
| 134 | TECHNICAL FEES REMOVED FROM CHARGES. | — | CO | 134 | View → |
| 135 | INTERIM BILLS CANNOT BE PROCESSED. |
MA79
Billed in excess of interim rate. |
CO | 135 | View → |
| 136 | FAILURE TO FOLLOW PRIOR PAYER'S COVERAGE RULES. |
N130
Consult plan benefit documents/guidelines for informat… |
CO | 96 | View → |
| 137 | REGULATORY SURCHARGES, ASSESSMENTS, ALLOWANCES OR HEALTH RELATED TAXES. | — | CO | 137 | View → |
| 138 | APPEAL PROCEDURES NOT FOLLOWED OR TIME LIMITS NOT MET. | — | CO | 138 | View → |
| 139 | CONTRACTED FUNDING AGREEMENT - SUBSCRIBER IS EMPLOYED BY THE PROVIDER OF SERVICES. | — | CO | 139 | View → |
| 143 | PORTION OF PAYMENT DEFERRED. | — | CO | 143 | View → |
| 144 | INCENTIVE ADJUSTMENT, E.G. PREFERRED PRODUCT/SERVICE. | — | CO | 144 | View → |
| 146 | DIAGNOSIS WAS INVALID FOR THE DATE(S) OF SERVICE REPORTED. PLEASE RESUBMIT CORRECTED CLAIM FOR CON… |
M64
Missing/incomplete/invalid other diagnosis. |
CO | 146 | View → |
| 147 | PROVIDER CONTRACTED/NEGOTIATED RATE EXPIRED OR NOT ON FILE. | — | CO | 147 | View → |
| 148 | INFORMATION FROM ANOTHER PROVIDER WAS NOT PROVIDED OR WAS INSUFFICIENT/INCOMPLETE.: |
N181
Additional information is required from another provid… |
CO | 148 | View → |
| 150 | PAYER DEEMS THE INFORMATION SUBMITTED DOES NOT SUPPORT THIS LEVEL OF SERVICE. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 150 | View → |
| 151 | PAYMENT ADJUSTED BECAUSE THE PAYER DEEMS THE INFORMATION SUBMITTED DOES NOT SUPPORT THIS MANY/FREQU… |
N432
Alert: Adjustment based on a Recovery Audit. |
CO | 151 | View → |
| 152 | PAYER DEEMS THE INFORMATION SUBMITTED DOES NOT SUPPORT THIS LENGTH OF SERVICE. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 152 | View → |
| 153 | PAYER DEEMS THE INFORMATION SUBMITTED DOES NOT SUPPORT THIS DOSAGE. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 153 | View → |
| 154 | PAYER DEEMS THE INFORMATION SUBMITTED DOES NOT SUPPORT THIS DAY'S SUPPLY. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 154 | View → |
| 155 | PATIENT REFUSED THE SERVICE/PROCEDURE. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 155 | View → |
| 157 | SERVICE/PROCEDURE WAS PROVIDED AS A RESULT OF AN ACT OF WAR. | — | CO | 157 | View → |
| 158 | SERVICE/PROCEDURE WAS PROVIDED OUTSIDE OF THE UNITED STATES. | — | CO | 158 | View → |
| 159 | SERVICE/PROCEDURE WAS PROVIDED AS A RESULT OF TERRORISM. | — | CO | 159 | View → |
| 162 | STATE-MANDATED REQUIREMENT FOR PROPERTY AND CASUALTY, SEE CLAIM PAYMENT REMARKS CODE FOR SPECIFIC E… | — | CO | P7 | View → |
| 163 | ATTACHMENT REFERENCED ON THE CLAIM WAS NOT RECEIVED. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 163 | View → |
| 164 | ATTACHMENT REFERENCED ON THE CLAIM WAS NOT RECEIVED IN A TIMELY FASHION. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 164 | View → |
| 165 | REFERRAL ABSENT OR EXCEEDED. |
M62
Missing/incomplete/invalid treatment authorization cod… |
CO | 165 | View → |
| 167 | THIS (THESE) DIAGNOSIS(ES) IS (ARE) NOT COVERED. |
M64
Missing/incomplete/invalid other diagnosis. |
CO | 167 | View → |
Remark Codes (RARC) are used on the 835 ERA and paper EOB to provide supplemental information about a claim adjustment. They always accompany a CARC (denial code) and clarify the reason for payment differences.
A Denial Code (CARC) explains why payment was adjusted. A Remark Code (RARC) provides additional context or instructions. Both appear together on remittance — look for the CARC first, then the RARC for detail.
Search by code number or keyword, or filter by adjustment group (CO, PR, OA…). Click any code to see its full RA835 mapping, common causes, step-by-step resolution guide, and appeal tips.