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 | |
|---|---|---|---|---|---|
| T619 | HCPCS Code S9088 represents location of service; reimbursement is included in the primary service. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T620 | CPT code 64640 is not correct coding methodology for Dx 355.6. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T621 | Per HCPCS and CMS, modifier SU is informational only with no additional payment allowed. | — | CO | 204 | View → |
| T622 | Only one unit of service is allowed for implant removals. | — | CO | 119 | View → |
| T623 | This Px should be billed with POS 24 when performed in an ASC. |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 5 | View → |
| T624 | POS 11 incorrect on a prof. clm; rec amt adjusted on this ASC claim, sm TIN. | — | CO | 5 | View → |
| T625 | This procedure should be billed with POS 22 when performed in an outpatient hospital setting. |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 5 | View → |
| T626 | Invalid POS for hosp outpt service on CMS1500 was previously paid; Rec Amt adjusted on this UB claim |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 5 | View → |
| T627 | HCPCS code S9083 is a global service; payment is based on other billed srvcs. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T628 | Code S9083 describes all services in an urgent care visit; addl srv denied. |
N130
Consult plan benefit documents/guidelines for informat… |
CO | 50 | View → |
| T640 | Per CPT/HCPCS guidelines, this code is allowed to be reported once per 2 days. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T641 | Per CPT/HCPCS guidelines, this code is allowed to be reported once per 7 days. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T642 | Per CPT/HCPCS guidelines, this code is allowed to be reported once per 14 days. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T643 | Per CPT/HCPCS guidelines, this code is allowed to be reported once per 21 days. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T644 | Per CPT/HCPCS guidelines, this code is allowed to be reported once per 30 days. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T645 | Per CPT/HCPCS guidelines, this code is allowed to be reported once per 90 days. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T646 | Per CPT/HCPCS guidelines, this code is allowed to be reported once per 365 days. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T667 | Per CPT code may not be billed in conjunction with other specified code |
M20
Missing/incomplete/invalid HCPCS. |
CO | 16 | View → |
| T668 | Per CPT coding guidelines, the patient's age is outside the age parameters for the code. |
N129
Not eligible due to the patient's age. |
CO | 96 | View → |
| T669 | Per CPT coding guidelines, the gender for the code does not match the gender on the claim. | — | CO | 7 | View → |
| T670 | Per CPT coding guidelines, this code is bundled when other services are provided on the same DOS. |
M15
Separately billed services/tests have been bundled as … |
CO | 234 | View → |
| T673 | Modifier 22 is inappropriate with this procedure code. | — | CO | 4 | View → |
| T674 | Modifier 22 is not approved for facility billing. | — | CO | 4 | View → |
| T675 | The modifier is incorrect for the service provided. | — | CO | 4 | View → |
| T676 | A required modifier is missing | — | CO | 4 | View → |
| T680 | This service is considered non-covered; it is not eligible for reimbursement. |
N130
Consult plan benefit documents/guidelines for informat… |
CO | 50 | View → |
| T681 | Per State Medicaid guidelines the POS code billed is not appropriate with this procedure code. |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 5 | View → |
| T706 | Per NCCI, closure of the surgical incision is included in payment for the procedure. |
M15
Separately billed services/tests have been bundled as … |
CO | 97 | View → |
| T708 | It is not appropriate to bill a Separate Procedure with another related service. | — | CO | 231 | View → |
| T715 | This service is part of a clinical trial. It is not appropriate to bill for these services. |
M25
The information furnished does not substantiate the ne… |
CO | 16 | View → |
| T800 | NCCI disallows this procedure with other procedure(s) billed same DOS, without an NCCI anatomic mod |
N572
This procedure is not payable unless appropriate non-p… |
CO | 16 | View → |
| T801 | NCCI disallows this procedure billed with a procedure same DOS, diff claim w/o an NCCI anatomic mod |
N572
This procedure is not payable unless appropriate non-p… |
CO | 16 | View → |
| 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 → |
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.