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RARC — Remittance Advice Remark Codes

Remark Codes — Complete List & Lookup

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.

2,992
Total Remark Codes
3
Adjustment Groups
835
RA835 Mapped
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Looking for Denial Codes (CARC)?

Browse Claim Adjustment Reason Codes — the codes that explain why a payment was reduced or denied.

Showing 1,651–1,700 of 2,818 remark codes in group CO
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Remark Code Description RA835 Code Group Reason Code
XA09 PER HFS'S MEDICALLY UNLIKELY EDITS POLICY, TOTAL UNITS BILLED FOR THE PROCEDURE EXCEED THE ALLOWED … N362
The number of Days or Units of Service exceeds our acc…
CO 222 View →
XA11 PROVIDER IS NOT ELIGIBLE TO BILL NON-OTP PROCEDURE CODE. N95
This provider type/provider specialty may not bill thi…
CO 8 View →
XA12 NON-OTP PROVIDER IS NOT ELIGIBLE TO BILL PROCEDURE H0020. N95
This provider type/provider specialty may not bill thi…
CO 8 View →
XA13 ONE OF THE LINE ITEM SERVICE DATES (ITEMSERVICEDATE) PROVIDED IS NOT VALID. N301
Missing/incomplete/invalid procedure date(s).
CO 16 View →
XA14 PACKAGED SERVICE N130
Consult plan benefit documents/guidelines for informat…
CO 96 View →
XA15 SERVICE DATE IS OUTSIDE OF ACCEPTABLE DATE OF SERVICE N64
The 'from' and 'to' dates must be different.
CO 16 View →
XA16 CBSA CANNOT BE DETERMINED FOR THIS CLAIM N130
Consult plan benefit documents/guidelines for informat…
CO 96 View →
XA18 INVALID PARTIAL EPISODE PAYMENT INDICATOR M56
Missing/incomplete/invalid payer identifier.
CO 16 View →
XA19 INVALID INITIAL PAYMENT INDICATOR M56
Missing/incomplete/invalid payer identifier.
CO 16 View →
XA20 INITIAL HALF PAYMENT WILL BE ZERO N130
Consult plan benefit documents/guidelines for informat…
CO 96 View →
XA21 PROVIDER SPECIFIC RATE ZERO WHEN BLENDED PAY REQUESTED N130
Consult plan benefit documents/guidelines for informat…
CO 96 View →
XA22 PATIENT HEIGHT MUST BE GREATER THAN 0. N359
Missing/incomplete/invalid height.
CO 16 View →
XA23 PATIENT WEIGHT MUST BE GREATER THAN 0. N207
Missing/incomplete/invalid weight.
CO 16 View →
XA24 CLAIM CONTAINS HCPCS NOT ON THE AMBULATORY PROCEDURE LISTING (APL) THAT MUST BILLED FEE FOR SERVICE N130
Consult plan benefit documents/guidelines for informat…
CO 96 View →
XA26 EP MODIFIER IS REQUIRED FOR EPSDT CODES N519
Invalid combination of HCPCS modifiers.
CO 4 View →
XA27 OUTPATIENT SERVICES PERFORMED THREE DAYS PRIOR TO INPATIENT ADMISSION. N130
Consult plan benefit documents/guidelines for informat…
CO 96 View →
XA28 CPT/HCPCS IN PREVENTIVE SCHEDULE CO 44 View →
XA29 DENY TC MODIFIERS N130
Consult plan benefit documents/guidelines for informat…
CO 96 View →
XA30 DME IS NOT COVERED IN PLACE OF SERVICE . M77
Missing/incomplete/invalid/inappropriate place of serv…
CO 5 View →
XA31 EFFECTIVE JANUARY 1, 2011, THE PURCHASE OPTION FOR CAPPED RENTAL ITEMS IS ONLY AVAILABLE FOR COMPLE… CO 16 View →
XA32 DME CODES IN CATEGORY CR ARE LIMITED TO 1 PER MONTH - SEE CLAIM IN HISTORY. N435
Exceeds number/frequency approved /allowed within time…
CO 151 View →
XA34 CPT-4 CODE 74740 IS NOT REIMBURSABLE IF PERFORMED WITHIN THREE MONTHS FOLLOWING A TUBAL OCCLUSION/T… N130
Consult plan benefit documents/guidelines for informat…
CO 16 View →
XA35 THIS REVENUE CODE REQUIRES A SPECIFIC AGE RANGE AND/OR GENDER . N130
Consult plan benefit documents/guidelines for informat…
CO 16 View →
XA36 VALUE CODE IS REQUIRED FOR LTC CLAIM WITH TOB/TAXONOMY COMBINATION . CO 16 View →
XA37 THE DIAGNOSTIC PROCEDURE CODE BILLED BY A PHYSICIAN REQUIRES A 26 MODIFIER. MODIFIER 26 WAS ADDED T… N519
Invalid combination of HCPCS modifiers.
CO 16 View →
XA38 COVERAGE IS FOR 09-QUALIFIED MEDICARE BENEFICIARY (QMB) ONLY. CO 96 View →
XA39 LTC DIRECT BILLING GUIDELINES REQUIRES ADMIT DATE AND ADMIT HOUR BE PRESENT ON THE CLAIM. N46
Missing/incomplete/invalid admission hour.
CO 16 View →
XA40 PROCEDURE CODE 90899 IS ALL-INCLUSIVE AND ENCOMPASSES BOTH THE PROFESSIONAL AND FACILITY CHARGES FO… M51
Missing/incomplete/invalid procedure code(s).
CO 16 View →
XA43 AGE DIAGNOSIS RESTRICTION - INFANT (< 1 YEAR) N129
Not eligible due to the patient's age.
CO 7 View →
XA44 AGE DIAGNOSIS RESTRICTION - CHILD (< 19 YEARS) N129
Not eligible due to the patient's age.
CO 9 View →
XA45 AGE DIAGNOSIS RESTRICTION - ADOLESCENT (10 - 19 YEARS) N129
Not eligible due to the patient's age.
CO 9 View →
XA46 AGE DIAGNOSIS RESTRICTION - ADULT (20+ YEARS) N129
Not eligible due to the patient's age.
CO 9 View →
XA49 SMOKING CESSATION TREATMENT - FREQUENCY N640
Exceeds number/frequency approved/allowed within time …
CO 151 View →
XA50 PSYCHOTHERAPY WITH MEDICAL EVALUATION AND MANAGEMENT IS NOT REIMBURSABLE FOR PROVIDER TYPE. N95
This provider type/provider specialty may not bill thi…
CO 8 View →
XA51 INTERACTIVE COMPLEXITY PROCEDURE CODE MAY NOT BE BILLED AS A STAND-ALONE CODE OR WITH INAPPROPRIATE… M51
Missing/incomplete/invalid procedure code(s).
CO 16 View →
XA52 BRIDGE APPOINTMENT MUST BE BILLED ON HCFA CLAIM N130
Consult plan benefit documents/guidelines for informat…
CO 16 View →
XA53 BRIDGE APPOINTMENT IS LIMITED TO ONE UNIT PER HOSPITALIZATION. N640
Exceeds number/frequency approved/allowed within time …
CO 151 View →
XA54 PROCEDURE TERMINATED FOR NON-MEDICAL REASONS CO 96 View →
XA56 THE DIAGNOSIS AND MODIFIER COMBINATION ARE INAPPROPRIATE. N130
Consult plan benefit documents/guidelines for informat…
CO 16 View →
XA57 THE TOTAL UNITS OF EPOGEN MUST BE REPORTED USING VALUE CODE 68 AND/OR DOES NOT MATCH TOTAL UNITS BI… M49
Missing/incomplete/invalid value code(s) or amount(s).
CO 16 View →
XA60 THIS REVENUE CODE IS NOT PAYABLE ON AN OUTPATIENT CLAIM M50
Missing/incomplete/invalid revenue code(s).
CO 282 View →
XA61 THIS REVENUE CODE IS NOT PAYABLE ON AN OUTPATIENT CLAIM M50
Missing/incomplete/invalid revenue code(s).
CO 282 View →
XA62 THIS REVENUE CODE IS NOT PAYABLE ON AN OUTPATIENT CLAIM M50
Missing/incomplete/invalid revenue code(s).
CO 282 View →
XA63 THIS REVENUE CODE IS NOT PAYABLE ON AN OUTPATIENT CLAIM M50
Missing/incomplete/invalid revenue code(s).
CO 282 View →
XA64 THIS REVENUE CODE IS NOT PAYABLE ON AN OUTPATIENT CLAIM M50
Missing/incomplete/invalid revenue code(s).
CO 282 View →
XA65 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 →
XA66 NPWT PUMP DRESSING KITS (A6550) REIMBURSEMENT IS LIMITED TO 15 PER MONTH. N640
Exceeds number/frequency approved/allowed within time …
CO 151 View →
XA67 NPWT PUMP CANISTER SETS (A7000) REIMBURSEMENT IS LIMITED TO 10 PER MONTH. N640
Exceeds number/frequency approved/allowed within time …
CO 151 View →
XA68 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 →
XA69 CHIROPRACTIC SERVICE IS LIMITED TO 26 VISITS PER RECIPIENT PER 12 MONTH PERIOD. N640
Exceeds number/frequency approved/allowed within time …
CO 151 View →
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What is a Remark Code?

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.

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Remark Code vs. Denial Code

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.

How to Use This List

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.