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

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.

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Showing 1,851–1,900 of 2,818 remark codes in group CO

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Remark Code	Description	RA835 Code	Group	Reason Code
XM28	NOT SEPARATELY PAYABLE. INCLUDED IN CASE/PER-DIEM PAYMENT.	N130 Consult plan benefit documents/guidelines for informat…	CO	97	View →
XM61	BILLING PROVIDER CANNOT BILL ESRD SERVICES ON A HCFA CLAIM TYPE. IT MUST BE BILLED ON A UB CLAIM TY…	MA30 Missing/incomplete/invalid type of bill.	CO	16	View →
XM63	BILLING TAXONOMY IS NOT APPROPRIATE FOR AMBULATORY SURGERY CENTER BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM64	BILLING TAXONOMY IS NOT APPROPRIATE FOR SKILLED NURSING FACILITY BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM65	BILLING TAXONOMY IS NOT APPROPRIATE FOR SKILLED NURSING INPATIENT BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM66	BILLING TAXONOMY IS NOT APPROPRIATE FOR INTERMEDIATE CARE NURSING FACILITY BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM67	BILLING TAXONOMY IS NOT APPROPRIATE FOR INTERMEDIATE CARE NURSING FACILITY BILL TYPE 66X.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM68	BILLING TAXONOMY IS NOT APPROPRIATE FOR CLINIC BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM69	BILLING TAXONOMY IS NOT APPROPRIATE FOR INPATIENT BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM70	BILLING TAXONOMY IS NOT APPROPRIATE FOR INPATIENT BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM71	BILLING TAXONOMY IS NOT APPROPRIATE FOR OUTPATIENT BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM72	BILLING TAXONOMY IS NOT APPROPRIATE FOR OUTPATIENT BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM73	BILLING TAXONOMY IS NOT APPROPRIATE FOR HOSPICE BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM74	BILLING TAXONOMY IS NOT APPROPRIATE FOR CRITICAL ACCESS HOSPITAL BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM75	BILLING TAXONOMY IS NOT APPROPRIATE FOR HOME HEALTH BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM76	BILLING TAXONOMY IS NOT APPROPRIATE FOR HOSPICE BILL TYPE 81X.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM77	BILLING TAXONOMY IS NOT APPROPRIATE FOR FREE STANDING BIRTHING CENTER BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM78	BILLING TAXONOMY IS NOT APPROPRIATE FOR INPATIENT BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM79	BILLING TAXONOMY IS NOT APPROPRIATE FOR FACILITY BILL TYPE.	N94 Claim/Service denied because a more specific taxonomy …	CO	16	View →
XM80	PSYCHIATRIC HOSPITAL CAN NOT BILL OUTPATIENT ER CLAIMS WITH REVENUE CODES 450, 451, 452, 456, OR 45…	M50 Missing/incomplete/invalid revenue code(s).	CO	16	View →
XM95	LEAVE OF ABSENCE REVENUE CODES ARE NOT PAYABLE.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
XM98	CMHCS, BHCS, INDEPENDENT PRACTITIONERS (PSYCHIATRISTS, LICENSED CLINICAL SOCIAL WORKERS AND LICENSE…	N657 This should be billed with the appropriate code for th…	CO	4	View →
XN00	FLUORIDE PROCEDURE (D1206) IS ONLY AVAILABLE FOR PAYMENT TWICE A YEAR FOR MEMBER AGES 3-20	N129 Not eligible due to the patient's age.	CO	6	View →
XN13	HCPCS CODE Q3014 TO BE BILLED IN CONJUNCTION WITH REVENUE CODE 0780.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
XN16	PROCEDURE CODE 97140 DESCRIBES A PHYSICAL THERAPY SERVICE SUBMITTED WITH AN INAPPROPRIATE PLACE OF …	M77 Missing/incomplete/invalid/inappropriate place of serv…	CO	16	View →
XN35	CLAIM PAID AT ENCOUNTER RATE	—	CO	45	View →
XN36	LONG ACTING CONTRACEPTIVE DEVICES (LARCS) ARE FEE-FOR-SERVICE WHEN BILLED SEPARATELY	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
XN39	DME PROCEDURES BILLED WITH RR MODIFIER AND NO RENTAL PRICE IS NOTED, REIMBURSEMENT IS 10% OF PURCHA…	—	CO	45	View →
XN40	IF A SUPR/DASA PROVIDER IS BILLING WITH TAXONOMY 324500000X OR 3245S0500X, AN ADMISSION CODE FROM 1…	N130 Consult plan benefit documents/guidelines for informat…	CO	16	View →
XN46	HOSPICE REV 0657 MUST HAVE A CORRESPONDING CPT/HCPC CODE BILLED	N130 Consult plan benefit documents/guidelines for informat…	CO	16	View →
XN48	DENTAL FLOURIDE (D1206/D1208) IS ONLY APPLICABLE TWICE A YEAR FOR AGES 3-20	N130 Consult plan benefit documents/guidelines for informat…	CO	16	View →
XN53	Procedure code {CPT} is not valid for member age	N129 Not eligible due to the patient's age.	CO	16	View →
XN54	CRNA and Anesthesiologist can no longer bill surgery procedures effective 10/01/2021.	N130 Consult plan benefit documents/guidelines for informat…	CO	16	View →
XN55	CPT CODE IS NOT ALLOWED WITH BILLED OUTPATIENT PSYCH REVENUE CODE	N130 Consult plan benefit documents/guidelines for informat…	CO	16	View →
Y1	ADMISSION DIAGNOSIS: THE ADMISSION DIAGNOSIS IS INVALID OR DISABLED.	MA65 Missing/incomplete/invalid admitting diagnosis.	CO	16	View →
Y10	ADMISSION DIAGNOSIS IS NOT TYPICAL FOR A PATIENT OF THIS AGE.	N657 This should be billed with the appropriate code for th…	CO	9	View →
Y11	PRINCIPAL DIAGNOSIS IS NOT TYPICAL FOR A PATIENT OF THIS AGE.	N657 This should be billed with the appropriate code for th…	CO	9	View →
Y12	OTHER DIAGNOSIS IS NOT TYPICAL FOR A PATIENT OF THIS AGE.	N657 This should be billed with the appropriate code for th…	CO	9	View →
Y13	ADMISSION DIAGNOSIS IS NOT TYPICAL FOR A PATIENT OF THIS GENDER.	N657 This should be billed with the appropriate code for th…	CO	10	View →
Y14	PRINCIPAL DIAGNOSIS IS NOT TYPICAL FOR A PATIENT OF THIS GENDER.	N657 This should be billed with the appropriate code for th…	CO	10	View →
Y145	The taxonomy of the provider does not match the bill type.	N255 Missing/incomplete/invalid billing provider taxonomy.	CO	16	View →
Y147	THE PROCEDURE WAS BILLED BY A PROVIDER NOT LISTED AS AN ANESTHESIOLOGY PROVIDER.	N95 This provider type/provider specialty may not bill thi…	CO	96	View →
Y15	OTHER DIAGNOSIS IS NOT TYPICAL FOR A PATIENT OF THIS GENDER.	N657 This should be billed with the appropriate code for th…	CO	10	View →
Y16	A MANIFESTATION CODE CAN NOT BE USED AS THE ADMITTING DIAGNOSIS.	MA65 Missing/incomplete/invalid admitting diagnosis.	CO	16	View →
Y160	ADULT/MATERNITY/NEWBORN/PEDIATRIC DIAGNOSIS IS NOT TYPICAL FOR THE PATIENT'S AGE.	N657 This should be billed with the appropriate code for th…	CO	9	View →
Y161	THE DIAGNOSIS IS INVALID OR DISABLED.	M76 Missing/incomplete/invalid diagnosis or condition.	CO	16	View →
Y162	THERE IS NO PRIMARY DIAGNOSIS LISTED FOR THIS PROCEDURE.	MA63 Missing/incomplete/invalid principal diagnosis.	CO	16	View →
Y163	THE DIAGNOSIS IS A NONSPECIFIC DIAGNOSIS CODE AND REQUIRES A FOURTH AND/OR FIFTH DIGIT.	M76 Missing/incomplete/invalid diagnosis or condition.	CO	16	View →
Y164	THE DIAGNOSIS IS NOT TYPICAL FOR THE PATIENT'S GENDER.	N657 This should be billed with the appropriate code for th…	CO	10	View →
Y165	THE DIAGNOSIS DESCRIBES AN EXTERNAL CAUSE, OR REQUIRES THE ICD CODE FOR THE FIRST UNDERLYING DISEAS…	MA63 Missing/incomplete/invalid principal diagnosis.	CO	16	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.

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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.