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 | |
|---|---|---|---|---|---|
| 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 → |
| T216 | Per Nat'l Phys Fee Sched this procedure is inherently bilateral; pay 100% fee sched amt for one unit |
N644
Reimbursement has been made according to the bilateral… |
CO | 59 | View → |
| T217 | Per CPT, Supplies used during infusions/injections are included in the administration codes. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T218 | Per CPT, Supplies used for irrigation are not separately reportable. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T219 | The Rec. amount for this global OB code was adjusted due to previously billed antepartum visits. |
M80
Not covered when performed during the same session/dat… |
CO | 97 | View → |
| T220 | Per HCPCS, all necessary supplies are included in the Home Therapy codes. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T221 | Per HCPCS, ambulance service codes include basic supplies and services. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T222 | Separate reporting of an administration code is not allowed with this service. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T230 | Per State Medicaid guidelines, this procedure is not eligible for assistant surgeon reimbursement. | — | CO | 109 | View → |
| T231 | Per State Medicaid guidelines, this procedure is not eligible for co-surgeon reimbursement. | — | CO | 109 | View → |
| T232 | Per State Medicaid guidelines, this procedure is not eligible for team surgeon reimbursement. | — | CO | 109 | View → |
| T240 | This code is subject to the assistant surgeon reimbursement rules. | — | CO | 97 | View → |
| T241 | This code is subject to the co-surgeon reimbursement rules. | — | CO | 97 | View → |
| T242 | This code is subject to the team surgeon reimbursement rules. | — | CO | 97 | View → |
| T250 | This code is subject to the multiple procedure reimbursement rules. | — | CO | 59 | View → |
| T255 | This code is subject to the bilateral procedure reimbursement rules |
N644
Reimbursement has been made according to the bilateral… |
CO | 59 | View → |
| T260 | Only one antepartum multi-visit code should be billed per pregnancy. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 222 | View → |
| T290 | Medicaid Regulations indicate this service is included in the Global Surgical Package |
N390
This service/report cannot be billed separately. |
CO | 97 | View → |
| T298 | According to the CMS, this service is included as part of the pre-operative Global Surgical Package |
N390
This service/report cannot be billed separately. |
CO | 97 | View → |
| T299 | According to CMS, this service is included as part of the post-operative Global Surgical Package |
N390
This service/report cannot be billed separately. |
CO | 97 | View → |
| T300 | Per Nat'l Phys Fee Schedule, physicians may not bill global services in a facility setting | — | CO | 58 | View → |
| T360 | CPT code 36000 is integral to a more extensive service performed. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T400 | Per CMS, only one lab may bill for a reference test. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T401 | This automated lab test is not eligible for separate professional payment. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T404 | Payment is denied for all individual components of an Organ or Disease Panel code. |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 96 | View → |
| T406 | Per CPT, this lab panel code is adjusted because of individual test code(s) billed on a diff claim. | — | CO | 97 | View → |
| T407 | Per CPT, this individual test code is included in payment for the Organ or Disease Oriented Panel. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T408 | Per Nat'l Phys Fee Sched, this lab code is not eligible for separate professional component payment |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T414 | Per CPT, this service may only be reported once per delivery. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 119 | View → |
| T450 | Per code descriptors, G0101 is included in the preventive med. visit sm DOS | — | CO | 97 | View → |
| T500 | This service is bundled into another service rendered at the same time. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T502 | Payment for this service is bundled into the Critical Care code. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T510 | Per HCPCS, C-codes should only be used by an OPPS facility. |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 5 | 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.