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 | |
|---|---|---|---|---|---|
| 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 → |
| T198 | Per Natâl Phys Fee Schedule, payment is reduced with other procedures for the same dos, diff clai… | — | CO | 203 | View → |
| T199 | According to the National Physician Fee Schedule, payment is made at 50% of the fee schedule amount. | — | CO | 203 | View → |
| T200 | Reimbursement for assistant surgeon services is paid at 16% of the global surgery amount. | — | CO | 203 | View → |
| T201 | This procedure is not eligible for assistant surgeon reimbursement. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T202 | This global obstetric care code is not eligible for assistant surgeon reimbursement. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T203 | Per Nat'l Phys Fee Sched this procedure is bilateral and priced at 150% of the fee schedule amount |
N644
Reimbursement has been made according to the bilateral… |
CO | 59 | View → |
| T204 | Per Nat'l Phys Fee Sched, this procedure is eligible for bilateral and multiple procedure discounts. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T205 | This procedure is eligible for assistant surgeon and multiple procedure discounts. | — | CO | 59 | View → |
| T206 | This code can never serve as a stand-alone code and must be reported in addition to a primary code |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T207 | According to the Nat'l Phys Fee Sched this procedure is not eligible for Co-Surgeon reimbursement | — | CO | 59 | View → |
| T208 | Per National Physician Fee Schedule this procedure is not eligible for Team Surgeon reimbursement | — | CO | 54 | View → |
| T209 | Per Natâl Phys Fee Sched, documentation is required to establish medical necessity for Co-Surgeon. |
M25
The information furnished does not substantiate the ne… |
CO | 50 | View → |
| T210 | Per CPT, this procedure is inherently bilateral; pay 100% for one unit. |
N644
Reimbursement has been made according to the bilateral… |
CO | 59 | View → |
| T211 | Routine supplies are included in the primary service and are not separately billable. |
M15
Separately billed services/tests have been bundled as … |
CO | 234 | View → |
| T212 | Supplies associated with denied services are also denied. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 96 | View → |
| T213 | When the primary code is denied, the associated add-on code is also denied. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 96 | View → |
| T214 | This service is included in the global obstetric care service and should not be reported separately. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T215 | Per CPT coding guidelines this service is included in the surgical package; do not report separately |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | 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.