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 | |
|---|---|---|---|---|---|
| YA63 | THIS REVENUE CODE IS NOT PAYABLE ON AN OUTPATIENT CLAIM |
M50
Missing/incomplete/invalid revenue code(s). |
CO | 282 | View → |
| YA64 | THIS REVENUE CODE IS NOT PAYABLE ON AN OUTPATIENT CLAIM |
M50
Missing/incomplete/invalid revenue code(s). |
CO | 282 | View → |
| YA65 | DME SERVICE IS NOT COVERED BY CMS AS A RENTAL OR A PURCHASE WHEN THE ITEM HAS PREVIOUSLY BEEN PAID … |
N130
Consult plan benefit documents/guidelines for informat… |
CO | 16 | View → |
| YA66 | NPWT PUMP DRESSING KITS (A6550) REIMBURSEMENT IS LIMITED TO 15 PER MONTH. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 151 | View → |
| YA67 | NPWT PUMP CANISTER SETS (A7000) REIMBURSEMENT IS LIMITED TO 10 PER MONTH. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 151 | View → |
| YA68 | PROFESSIONAL RADIOLOGY SERVICES BILLED BY A PROVIDER OTHER THAN AN ANESTHESIOLOGIST, CARDIOLOGIST, … |
N95
This provider type/provider specialty may not bill thi… |
CO | 96 | View → |
| YA69 | CHIROPRACTIC SERVICE IS LIMITED TO 26 VISITS PER RECIPIENT PER 12 MONTH PERIOD. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 151 | View → |
| YA72 | PROPER MODIFIERS NOT BILLED TO ALLOW REIMBURSEMENT FOR ASSISTANT SURGEON AT A TEFRA HOSPITAL. |
N519
Invalid combination of HCPCS modifiers. |
CO | 4 | View → |
| YA74 | THIS PLACE OF SERVICE CODE IS NOT ELIGIBLE FOR PRIMARY CARE PHYSICIAN CLASSIFICATION. |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 16 | View → |
| YA75 | PLACE OF SERVICE CODE IS NOT ELIGIBLE FOR MID LEVEL PROVIDER CLASSIFICATION. |
M77
Missing/incomplete/invalid/inappropriate place of serv… |
CO | 16 | View → |
| YA76 | BILL TYPE 14X IS ONLY VALID FOR LAB TEST |
MA30
Missing/incomplete/invalid type of bill. |
CO | 16 | View → |
| YA85 | LINE BUNDELED INTO ENCOUNTER RATE. |
N130
Consult plan benefit documents/guidelines for informat… |
CO | 96 | View → |
| YA86 | MUST BILL WITH ENCOUNTER CODE T1015 OR S5190 |
N130
Consult plan benefit documents/guidelines for informat… |
CO | 96 | View → |
| YA87 | FAMILY PLANNING DEVICES AND SERVICES MUST BE SUBMITTED ON A SEPARATE CLAIM. CANNOT COMBINE WITH OTH… |
N130
Consult plan benefit documents/guidelines for informat… |
CO | 96 | View → |
| ZAD | PLEASE RESUBMIT THIS CLAIM WITH THE CORRECT ADMIT AND DISCHARGE DATES |
MA31
Missing/incomplete/invalid beginning and ending dates … |
CO | 16 | View → |
| ZAP | PLEASE RESUBMIT CLAIM WITH THE NAME OF THE ATTENDING PHYSICIAN |
N252
Missing/incomplete/invalid attending provider name. |
CO | 16 | View → |
| ZCOB | OTHER INSURANCE INFORMATION HAS NOT BEEN RECEIVED |
N479
Missing Explanation of Benefits (Coordination of Benef… |
CO | 252 | View → |
| ZDDC | DUPLICATE DIAGNOSIS CODE SUBMITTED. PLEASE RESUBMIT A CORRECTED CLAIM |
M64
Missing/incomplete/invalid other diagnosis. |
CO | 16 | View → |
| ZDPA | DEPENDENT OVER AGE LIMIT. |
N381
Alert: Consult our contractual agreement for restricti… |
CO | 32 | View → |
| ZFBB | THE TYPE OF BILL CODE IS INVALID. PLEASE RESUBMIT THIS CLAIM WITH A CORRECTED CODE. |
MA30
Missing/incomplete/invalid type of bill. |
CO | 16 | View → |
| ZFFB | THE TYPE OF BILL CODE IS INVALID. PLEASE RESUBMIT THIS CLAIM WITH A CORRECTED CODE |
MA30
Missing/incomplete/invalid type of bill. |
CO | 16 | View → |
| ZFT | PLEASE RESUBMIT THIS CLAIM WITH THE CORRECT FROM AND TO DATES |
MA31
Missing/incomplete/invalid beginning and ending dates … |
CO | 16 | View → |
| ZITN | INVALID TOOTH NUMBER |
N37
Missing/incomplete/invalid tooth number/letter. |
CO | 16 | View → |
| ZMDC | MEDICARE'S APPROVED AMOUNT IS LESS THAN $0. PLEASE RESUBMIT A CORRECTED MEDICARE STATEMENT |
N479
Missing Explanation of Benefits (Coordination of Benef… |
CO | 16 | View → |
| ZMDE | THE MAXIMUM DAYS SUPPLY FOR THIS ITEM HAS BEEN USED |
N362
The number of Days or Units of Service exceeds our acc… |
CO | 119 | View → |
| ZMDI | MODIFIER SUBMITTED IS INVALID. |
N572
This procedure is not payable unless appropriate non-p… |
CO | 182 | View → |
| ZMDO | THE MAXIMUM DAYS FOR THIS ITEM/SERVICE HAS BEEN USED |
N362
The number of Days or Units of Service exceeds our acc… |
CO | 119 | View → |
| ZMDS | THE MINIMUM DAYS SUPPLY REQUIRED HAS NOT BEEN MET |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 96 | View → |
| ZMFO | THE MAXIMUM FILLS FOR THIS ITEM HAVE BEEN USED |
N362
The number of Days or Units of Service exceeds our acc… |
CO | 119 | View → |
| ZMQE | THE MAXIMUM QUANTITY ALLOWED HAS BEEN USED |
N362
The number of Days or Units of Service exceeds our acc… |
CO | 119 | View → |
| ZMQO | THE MAXIMUM QUANTITY FOR THIS ITEM/SERVICE HAS BEEN USED |
N362
The number of Days or Units of Service exceeds our acc… |
CO | 119 | View → |
| ZMQR | THE MINIMUM QUANITY REQUIRED HAS NOT BEEN MET |
N174
This is not a covered service/procedure/ equipment/bed… |
CO | 96 | View → |
| ZPCP | PCP REJECT PC01 TESTING | — | CO | 16 | View → |
| ZPPH | PREAUTHORIZATION IS REQUIRED FOR THIS SERVICE |
M62
Missing/incomplete/invalid treatment authorization cod… |
CO | 197 | View → |
| ZPX | THESE ARE NON-COVERED SERVICES BECAUSE THIS IS A PRE-EXISTING CONDITION |
N30
Patient ineligible for this service. |
CO | 51 | View → |
| ZQDN | QUADRANT DOES NOT MATCH SPECIFIED TOOTH. |
N37
Missing/incomplete/invalid tooth number/letter. |
CO | 16 | View → |
| ZQUA | QUADRANT REQUIRED FOR PROCEDURE. |
N37
Missing/incomplete/invalid tooth number/letter. |
CO | 16 | View → |
| ZSN | MINIMUM OR MAXIMUM NUMBER OF SURFACES REQUIRED |
N75
Missing/incomplete/invalid tooth surface information. |
CO | 16 | View → |
| ZSPA | SPOUSE OVER AGE LIMIT. |
N30
Patient ineligible for this service. |
CO | 177 | View → |
| ZTNR | TOOTH NUMBER IS REQUIRED FOR THIS PROCEDURE |
N37
Missing/incomplete/invalid tooth number/letter. |
CO | 16 | View → |
| 1D | RECALC/CORRECTED BILLING SUBMITTED |
N130
Consult plan benefit documents/guidelines for informat… |
CO | 96 | View → |
| 1NPL | SERVICES ARE LIMITED TO ONE NEW PATIENT VISIT PER LIFETIME. |
MA130
Your claim contains incomplete and/or invalid informat… |
CO | 16 | View → |
| 1P2Y | SERVICES ARE LIMITED TO ONE EVERY 2 YEARS |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 222 | View → |
| 1PP | SERVICE IS LIMITED TO ONCE PER PREGNANCY. |
N640
Exceeds number/frequency approved/allowed within time … |
CO | 222 | View → |
| 1PYR | SERVICES LIMITED TO ONCE PER YEAR. |
N362
The number of Days or Units of Service exceeds our acc… |
CO | 222 | View → |
| 02EA | EAPG CLAIM NOT PROCESSED; INVALID CLAIM FROM OR THROUGH DATE, OR OUTSIDE SUPPORTED PERIOD. |
MA31
Missing/incomplete/invalid beginning and ending dates … |
CO | 16 | View → |
| 2HLM | PRIOR AUTH IS REQUIRED AFTER UNITS EXCEED 200 UNITS PER MEMBER PER PROVIDER |
M62
Missing/incomplete/invalid treatment authorization cod… |
CO | 197 | View → |
| 03EA | EAPG CLAIM NOT PROCESSED; SINGLE VISIT OPTION NOT SELECTED IN SCHEDULE AND LINE DATE NOT WITHIN FRO… |
N182
This claim/service must be billed according to the sch… |
CO | 16 | View → |
| 3DI | MUST BILL BASE RADIOLOGY PROCEDURE WITH 3D IMAGING |
M51
Missing/incomplete/invalid procedure code(s). |
CO | 16 | View → |
| 3P12 | SERVICE IS LIMITED TO 3 TIMES WITHIN A 12 MONTH PERIOD. |
N362
The number of Days or Units of Service exceeds our acc… |
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.