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 | |
|---|---|---|---|---|---|
| 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 → |
| T599 | This online eval code is denied within 7 days after a related E/M Service. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T600 | New patient visit not appropriate-patient received professional services from provider within 3 yrs. | — | CO | B16 | View → |
| T601 | Two hospital visits on the same day by the same provider for the same patient are not reimbursable. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T602 | Only an initial hospital care service or an inpatient consultation is allowed on the same DOS | — | CO | B14 | View → |
| T603 | This Evaluation and Management service is considered included in the hospital E/M service. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T605 | Emergency Department E/M codes must be billed with the Emergency Department place of service code 23 |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 5 | View → |
| T606 | Only one unit of service may be billed with this code per a given date of service. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 119 | View → |
| T608 | Custodial Care E/M codes must be billed with an appropriate place of service code. |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 5 | View → |
| T609 | Home Services E/M codes must be billed with a place of service code 12. |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 5 | View → |
| T610 | Nursing Facility E/M codes must be billed with an appropriate place of service code. |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 5 | View → |
| T611 | This code is not a valid CPT or HCPCS code. | — | CO | 4 | View → |
| T612 | Per CPT/HCPCS guidelines, this code is allowed to be reported once per its designated time span. | — | CO | 119 | View → |
| T613 | Per the OPPS, this procedure is designated as an inpatient only procedure. |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 5 | View → |
| T614 | CPT/HCPCS code not valid for the billed date of service. | — | CO | 4 | View → |
| T615 | This code is incorrect for the service provided | — | CO | 4 | View → |
| T616 | Per CMS pay one office/outpt visit per patient, per day, unless services are separately identifiable | — | CO | 222 | View → |
| T617 | Per CPT, physicians may not report hydration, injection, or infusion codes in the facility setting. |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 5 | View → |
| T618 | Per CMS and industry standards, vertebral axial decompression is not a reimburseable service. | — | 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.