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 | |
|---|---|---|---|---|---|
| RVAG | THE REVENUE CODE SUBMITTED IS NOT APPROPRIATE FOR THE AGE OF THE PATIENT. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| S2 | PRE - AUTHORIZATION REQUIRED. |
M62
Missing/incomplete/invalid treatment authorization cod… |
CO | 197 | View → |
| S2N | NOTIFICATION I IS REQUIRED FOR THIS SERVICE. | — | CO | 197 | View → |
| SAS | SURGEON AND ASSISTANT SURGEON MUST BILL SEPARATELY. |
N61
Rebill services on separate claims. |
CO | 16 | View → |
| SCL | SMOKING CESSATION LIMIT HAS BEEN EXCEEDED FOR THIS SERVICE |
N362
The number of Days or Units of Service exceeds our acc… |
CO | 222 | View → |
| SCN | MAXIMUM BENFT EXCEEDED. SMOKING CESSATION MAXIMIMUM 12 WEEK COURSE OF TREATMENT PER MEMBER PER CALE… |
N362
The number of Days or Units of Service exceeds our acc… |
OA | 119 | View → |
| SCR | SEPARATE CLAIM REQUIRED FOR EACH PROVIDER BILLING SERVICES. |
N61
Rebill services on separate claims. |
CO | 16 | View → |
| SCY | PLEASE SUBMIT CORRECTED CLAIMS FOR SERVICES RENDERED FOR EACH CALENDAR YEAR SEPARATELY. |
N74
Resubmit with multiple claims, each claim covering ser… |
CO | 267 | View → |
| SDC | EXPENSES INCURRED AFTER COVERAGE TERMINATED |
N30
Patient ineligible for this service. |
OA | 27 | View → |
| SDOP | CLAIM DENIED - SUPPORTING HEALTH RECORD DOCUMENTATION MUST BE SUBMITTED PRIOR TO PAYMENT. |
N358
Alert: This decision may be reviewed if additional doc… |
CO | 252 | View → |
| SEOB | PRIMARY INSURANCE EOB RECEIVED. PLEASE SUBMIT A COPY OF THE SECONDARY INSURANCE EXPLANATION OF PAY… |
MA64
Our records indicate that we should be the third payer… |
CO | 22 | View → |
| SEQL | SERVICE EXCEEDS QUANTITY LIMITATIONS-- V5266 IS LIMITED TO 16 UNITS EVERY 60 DAYS. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 119 | View → |
| SFT | THE SERVICE FROM DATE IS GREATER THAN THE SERVICE TO DATE. |
MA31
Missing/incomplete/invalid beginning and ending dates … |
CO | 16 | View → |
| SIP | PREAUTHORIZATION REQUIRED-INPATIENT STAY | — | CO | 197 | View → |
| SIPN | PREAUTHORIZATION - NOTIFICATION REQUIRED - INPATIENT STAY | — | CO | 197 | View → |
| SKI | APPLICATION OF SKIN SUBSTITUTE MUST BE BILLED |
M51
Missing/incomplete/invalid procedure code(s). |
CO | 16 | View → |
| SM% | PAYMENT HAS BEEN REDUCED DUE TO THE PRICING MODIFIER SUBMITTED. | — | CO | 59 | View → |
| SN90 | SKILLED NURSING FACILITY LIMITED TO 90 DAYS PER CALENDER YEAR |
N362
The number of Days or Units of Service exceeds our acc… |
OA | 222 | View → |
| SNC | SERVICE NOT COVERED UNDER SPECIAL NEEDS CHILDREN PLAN |
N130
Consult plan benefit documents/guidelines for informat… |
CO | 204 | View → |
| SNCA | PRE - AUTHORIZATION - SPECIAL NEEDS CHILDREN PROGRAM |
M62
Missing/incomplete/invalid treatment authorization cod… |
CO | 197 | View → |
| SNCO | PRE - AUTHORIZATION REQUIRED FOR OUT OF NETWORK SERVICES - SPECIAL NEEDS CHILDREN PROGRAM |
M62
Missing/incomplete/invalid treatment authorization cod… |
CO | 197 | View → |
| SNES | NOT COVERED PER HFS GUIDELINES OR NOT ELIGIBLE FOR SEPARATE REIMBURSEMENT. |
N130
Consult plan benefit documents/guidelines for informat… |
CO | 96 | View → |
| SOBN | PREAUTHORIZATON/NOTIFICATON REQUIRED - OBSERVATION STAY | — | CO | 197 | View → |
| SP25 | SP 25 UPGRADE TESTING |
N130
Consult plan benefit documents/guidelines for informat… |
CO | 96 | View → |
| SS01 | SUBMITTED SPECIALTY DOES NOT MATCH OR TAXONOMY MISSING AND MUST BE SUBMITTED ON CLAIM. |
N288
Missing/incomplete/invalid rendering provider taxonomy. |
CO | B7 | View → |
| SSV | SERVICES SUBMITTED FOR INFORMATIONAL PURPOSES ONLY AND NOT REIMBURSABLE. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 96 | View → |
| STNC | THIS PROCEDURE IS NOT COVERED IN THIS SETTING. |
N428
Not covered when performed in this place of service. |
CO | 96 | View → |
| STS2 | SPEECH THERAPY EXCEEDING 12 VISITS/HOURS PER YEAR REQUIRES PRE-AUTHORIZATION. |
M62
Missing/incomplete/invalid treatment authorization cod… |
CO | 197 | View → |
| SYSI | THIS DUPLICATE CLAIM WAS GENERATED AS THE RESULT OF A SYSTEMS ISSUE AND IS BEING PROCESSED AS AN AD… |
M86
Service denied because payment already made for same/s… |
CO | 97 | View → |
| T000 | Per CPT manual instructions, physicians may not charge for Category II tracking codes. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T001 | Per HCPCS manual instructions, physicians may not charge for quality reporting codes. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T002 | According to the National Physician Fee Schedule, payment for this service is always bundled. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T050 | This service is not appropriate for reimbursement on this DOS. |
N56
Procedure code billed is not correct/valid for the ser… |
CO | 4 | View → |
| T051 | This service is bundled into another service rendered at the same time. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T100 | According to CPT Anesthesia Guidelines, only the most complex anesthesia service is reported. | — | CO | 269 | View → |
| T101 | Payment allowance for a medically directed CRNA or AA is 50% the rate of personally performed | — | CO | 203 | View → |
| T102 | Per NCCI, separate payment is not allowed for anesthesia services performed by the surgeon |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T103 | HCPCS code S2900 represents a service that is considered incidental to the primary service. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T104 | It is not appropriate to append modifier 47 to an anesthesia code. |
N572
This procedure is not payable unless appropriate non-p… |
CO | 16 | View → |
| T105 | Per NCCI, this service is included in the primary procedure and is not separately reportable. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T180 | Eligible for Assistant Surgeon Discount without Surgeon claim available for global surgery amount. | — | CO | 131 | View → |
| T186 | Per the OPPS, payment is reduced with other procedures for the same dos, diff claim. | — | CO | 203 | View → |
| T187 | Per the OPPS, payment is made at 50% of the fee schedule amount. | — | CO | 203 | View → |
| T188 | Per CMS, payment for the TC component is 80% for additional diagnostic procedures. | — | CO | 203 | View → |
| T189 | Per CMS, payment for the technical component is 75% for additional diagnostic procedures. | — | CO | 203 | View → |
| T190 | Per CMS, payment for the professional component is 75% for additional diagnostic procedures. | — | CO | 203 | View → |
| T191 | Per CMS, payment for the prof. component is 75% w/additional Dx procedures found on another claim. | — | CO | 203 | View → |
| T194 | Per CMS, payment for the technical component is 50% for additional diagnostic procedures. | — | CO | 203 | View → |
| T195 | Per CMS, payment for the tech. component is 50% w/additional Dx procedures found on another claim. | — | CO | 203 | View → |
| T197 | Reimbursement for assistant surgeon services is paid at 20% of the global surgery amount. | — | CO | 203 | 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.