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 | |
|---|---|---|---|---|---|
| T802 | NCCI disallows this procedure with other procedure(s) billed for same DOS, without an NCCI modifier |
N572
This procedure is not payable unless appropriate non-p… |
CO | 16 | View → |
| T803 | NCCI disallows this procedure with another procedure billed for the same DOS, with or w/o a modifier |
N572
This procedure is not payable unless appropriate non-p… |
CO | 16 | View → |
| T804 | NCCI disallows this procedure with a procedure billed on a diff claim, same DOS, without an NCCI mod |
N572
This procedure is not payable unless appropriate non-p… |
CO | 16 | View → |
| T805 | NCCI disallows this procedure with another procedure billed on a different claim for the same DOS | — | CO | 231 | View → |
| T806 | NCCI disallows this procedure with another procedure billed for same DOS, without an NCCI modifier |
N572
This procedure is not payable unless appropriate non-p… |
CO | 16 | View → |
| T807 | NCCI disallows this procedure with another procedure billed for the same DOS, with or w/o a modifier |
N572
This procedure is not payable unless appropriate non-p… |
CO | 16 | View → |
| T808 | NCCI disallows this procedure with a procedure billed on a diff claim, same DOS, without an NCCI mod |
N572
This procedure is not payable unless appropriate non-p… |
CO | 16 | View → |
| T809 | NCCI disallows this procedure with another procedure billed on a different claim for the same DOS | — | CO | 231 | View → |
| T812 | Per CPT /CMS correct coding, this unmodified srvc is disallowed. | — | CO | 4 | View → |
| T813 | Per CPT /CMS correct coding, this srvce is disallowed w or w/o a modifier. |
N572
This procedure is not payable unless appropriate non-p… |
CO | 16 | View → |
| T814 | Per CPT/CMS, this service is disallowed with a service on a dif clm w/o mod. |
N572
This procedure is not payable unless appropriate non-p… |
CO | 16 | View → |
| T815 | Per CPT/CMS, this service is disallowed with a service billed on a dif clm. |
M15
Separately billed services/tests have been bundled as … |
CO | P14 | View → |
| T816 | Per NCCI policy, this code is bundled with another code on this claim. |
M15
Separately billed services/tests have been bundled as … |
CO | P14 | View → |
| T817 | Per NCCI policy, this code is bundled with a code on another claim. |
M15
Separately billed services/tests have been bundled as … |
CO | P14 | View → |
| T818 | Per NCCI policy, this code is reduced due to a related code on another claim. | — | CO | B10 | View → |
| T824 | NCCI bundles a previously paid procedure w/o NCCI mod into this procedure; Rec Amt has been adjusted | — | CO | 231 | View → |
| T825 | NCCI bundles a previously paid procedure into this procedure; Rec Amt has been adjusted accordingly | — | CO | 231 | View → |
| T828 | NCCI bundles a previously paid procedure w/o NCCI mod into this procedure; Rec Amt has been adjusted | — | CO | 231 | View → |
| T829 | NCCI bundles a previously paid procedure into this procedure; Rec Amt has been adjusted accordingly | — | CO | 231 | View → |
| T830 | NCCI: The total units for this procedure on this claim for the same DOS are medically unlikely. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 222 | View → |
| T831 | NCCI: The total units for this procedure across claims for the same DOS are medically unlikely. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 222 | View → |
| T834 | NCCI: The total units for this procedure on this claim line for the same DOS are medically unlikely. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 222 | View → |
| T850 | This once-in-a-lifetime procedure was billed twice on this claim with different DOS. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 222 | View → |
| T851 | This once-in-a-lifetime procedure was previously billed for a different DOS. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 222 | View → |
| T860 | Per CCI, all types of repairs are included in benign lesion removals of 0.5 cm or less. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T861 | Per NCCI, an incidental appendectomy is not separately reportable. |
N122
Add-on code cannot be billed by itself. |
CO | 234 | View → |
| T865 | Per AAOS, this procedure is included in a more global procedure provided on the same DOS |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T872 | Medicaid disallows this service with another service w/ same DOS, w/o a modifier |
N572
This procedure is not payable unless appropriate non-p… |
CO | 4 | View → |
| T873 | Medicaid disallows this service with another service w/ same DOS, with or w/o modifier |
N572
This procedure is not payable unless appropriate non-p… |
CO | 4 | View → |
| T874 | Medicaid disallows this service with a service billed on a diff claim, same DOS, w/o an approved mod |
N572
This procedure is not payable unless appropriate non-p… |
CO | 4 | View → |
| T875 | Medicaid disallows this service w/another service on a diff claim w/same DOS with or w/o a modifier |
N572
This procedure is not payable unless appropriate non-p… |
CO | 4 | View → |
| T876 | Medicaid bundles a previously paid service w/o a mod into this procedure; Rec Amt has been adjusted |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T877 | Medicaid bundles previously paid service into this service; Rec amnt has been adjusted accordingly. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T981 | Service/procedure appears duplicative of a previously paid CMS1500 claim for the same DOS |
M86
Service denied because payment already made for same/s… |
CO | 97 | View → |
| T982 | This service/procedure is a duplicate of a previously paid UB claim for the same date of service. |
M86
Service denied because payment already made for same/s… |
CO | 97 | View → |
| T991 | Service/procedure appears duplicative of a previously reviewed CMS1500 claim for the same DOS |
M86
Service denied because payment already made for same/s… |
CO | 97 | View → |
| T992 | Service/procedure appears duplicative of a previously reviewed UB claim for the same date of service |
M86
Service denied because payment already made for same/s… |
CO | 97 | View → |
| T993 | This service/procedure appears to be a duplicate to another line on this professional claim. |
M86
Service denied because payment already made for same/s… |
CO | 97 | View → |
| TAMB | Taxonomy not within state transportation guidelines Eff: 1/1/17 | — | OA | 272 | View → |
| TB01 | Per Phys Fee Schedule, payment is not allowed for this Status B code. | — | CO | 45 | View → |
| TC3 | THIS CLAIM HAS BEEN RETROACTIVELY DENIED, PENDING AN OUTSTANDING REQUEST FOR FURTHER DOCUMENTATION.… |
MA130
Your claim contains incomplete and/or invalid informat… |
CO | 129 | View → |
| TC3P | INSUFFICIENT DOCUMENTATION RECEIVED TO VERIFY SERVICES. | — | CO | 16 | View → |
| TCMB | Taxonomy & claim text note not within state transportation guidelines Eff: 1/1/17 | — | OA | 272 | View → |
| TD01 | THE BILLED SERVICE OR SUPPLY IS NOT SUPPORTED BY THE SUBMITTED DOCUMENTATION. | — | CO | 16 | View → |
| TEOB | PLEASE SUBMIT A COPY OF THE PRIMARY AND SECONDARY EOB'S. |
N479
Missing Explanation of Benefits (Coordination of Benef… |
CO | 16 | View → |
| TF | APPEAL DENIED THE DOCUMENTATION SUBMITTED DOES NOT PROVIDE EVIDENCE OF TIMELY FILING. | — | CO | 138 | View → |
| TFA | THE ISSUE OF NON TIMELY FILING MUST BE DIPUTED/APPEALED WITH THE PRIMARY INSURANCE CARRIER AS THEY … | — | CO | 138 | View → |
| TH1 | THERAPY SERVICE LIMITED TO ONE UNIT PER DAY |
N362
The number of Days or Units of Service exceeds our acc… |
OA | 222 | View → |
| TH4 | THERAPY SERVICE LIMITED TO FOUR UNITS PER DAY |
N362
The number of Days or Units of Service exceeds our acc… |
OA | 222 | View → |
| TH60 | COMBINED THERAPY SERVICES (PT/OT/ST/RESPIRATORY/CARDIAC) LIMITED TO 60 VISITS PER YEAR. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 222 | 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.