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 2,351–2,400 of 2,818 remark codes in group CO

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Remark Code	Description	RA835 Code	Group	Reason Code
Y850	CPT ADVANCED KNEES, ANKLES AND FEET WITHOUT AN APPROPRIATE K2, K3 OR K4 FUNCTIONAL MODIFIER WILL BE…	N657 This should be billed with the appropriate code for th…	CO	4	View →
Y851	CPT SPINAL ORTHOSIS PROCEDURES MUST BE BILLED WITH CG MODIFIER	N657 This should be billed with the appropriate code for th…	CO	4	View →
Y852	PROCEDURES WITH MODIFIER 55 OR 56, IN ADDITION TO MODIFIER 78, ARE DENIED.	N657 This should be billed with the appropriate code for th…	CO	4	View →
Y853	DEVICE IS INTEGRAL TO A COVERED ASC SURGICAL PROCEDURE, BUT NO CORRESPONDING ASC SURGICAL PROCEDURE…	M51 Missing/incomplete/invalid procedure code(s).	CO	16	View →
Y854	EVALUATION AND MANAGEMENT SERVICES ARE NOT SEPARATELY PAYABLE WHEN BILLED WITH 93701 (BIOIMPEDANCE,…	M77 Missing/incomplete/invalid/inappropriate place of serv…	CO	16	View →
Y855	E&M CODE IS NOT COVERED BY CMS WHEN BILLED IN A PLACE OF SERVICE ON CLAIM.	M77 Missing/incomplete/invalid/inappropriate place of serv…	CO	16	View →
Y856	HOME HEALTH/HOME INFUSION PROCEDURE REQUIRES A VALID MODIFIER SS AND A VALID PLACE OF SERVICE.	N130 Consult plan benefit documents/guidelines for informat…	CO	16	View →
Y857	G0446 (ANNUAL, FACE-TO-FACE IBT FOR CVD) IS DENIED WHEN POS IS NOT 11, 22, 49, 50, 71, 72	M77 Missing/incomplete/invalid/inappropriate place of serv…	CO	16	View →
Y858	SURGICAL AND MEDICAL SERVICE IS DENIED BECAUSE IT WAS BILLED WITHIN DAY GLOBAL POST OPERATIVE PERIO…	N525 These services are not covered when performed within t…	CO	96	View →
Y859	ONLY ONE TECHNICAL COMPONENT FOR THE SAME SERVICE MAY BE BILLED. A SIMILAR SERVICE WAS BILLED ON CL…	N522 Duplicate of a claim processed, or to be processed, as…	CO	18	View →
Y860	CPT 93701 (BIOIMPEDANCE, THORACIC, ELECTRICAL) IS DENIED WHEN BILLED ON THE SAME DATE OF SERVICE AS…	M64 Missing/incomplete/invalid other diagnosis.	CO	16	View →
Y861	CPT 93701 (BIOIMPEDANCE, THORACIC, ELECTRICAL) IS DENIED WHEN THE ONLY DIAGNOSIS ON THE CLAIM IS AO…	M64 Missing/incomplete/invalid other diagnosis.	CO	16	View →
Y862	CORRECT NDC CODE REQUIRED.	M119 Missing/incomplete/invalid/ deactivated/withdrawn Nati…	CO	4	View →
Y863	HCPCS CODE IS NOT ON THE ASP DRUG SCHEDULE AND NDC IS NOT ON NOC SO THE CHARGE IS NOT COVERED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
Y864	INAPPROPRIATE CODING FOR CONTRACT AGREEMENT: HCPCS CATEGORY II CODE IS REQUIRED	N657 This should be billed with the appropriate code for th…	CO	16	View →
Y865	AN NDC CODE WITHOUT A CPT CODE IS NOT PERMITTED.	N657 This should be billed with the appropriate code for th…	CO	16	View →
Y866	DROP NCCI (VCE.49950/VCE.49951) FOR PROCEDURE CODES 59425 OR 59426 WITH APPROPRIATE MODIFIER.	N657 This should be billed with the appropriate code for th…	CO	4	View →
Y867	PHYSICAL STATUS MODIFIER MUST BE THE FIRST MODIFIER ON THE CLAIM.	N657 This should be billed with the appropriate code for th…	CO	4	View →
Y868	REVENUE CODE IS INVALID FOR LTC PROVIDER.	M50 Missing/incomplete/invalid revenue code(s).	CO	16	View →
Y869	BEHAVIORAL HEALTH PROVIDER REQUIRES MODIFIER ON THE ENCOUNTER CODE .	N657 This should be billed with the appropriate code for th…	CO	4	View →
Y870	ENCOUNTER RATE CLINICS REQUIRE A DETAIL CODE.	N657 This should be billed with the appropriate code for th…	CO	16	View →
Y871	ENCOUNTER RATE CLINICS SHOULD BE BILLED AS A SINGLE DATE OF SERVICE.	N130 Consult plan benefit documents/guidelines for informat…	CO	16	View →
Y872	REIMBURSEMENT FOR THIS SERVICE IS INCLUDED IN THE FQHC VISIT (G CODE).	N130 Consult plan benefit documents/guidelines for informat…	CO	97	View →
Y873	DASA MUST BE BILLED ON TYPE OF BILL 86X OR 89X	MA30 Missing/incomplete/invalid type of bill.	CO	282	View →
Y874	INFERTILITY DIAGNOSES ARE NON COVERED FOR ILLINOIS MEDICAID	M64 Missing/incomplete/invalid other diagnosis.	CO	96	View →
Y875	MATERNITY/ANTEPARTUM CODE IS CONSIDERED GLOBAL BY HFS	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
Y876	OCCURRENCE CODE 51 IS NO LONGER VALID. OCCURRENCE CODE 42 IS NOW REQUIRED.	M45 Missing/incomplete/invalid occurrence code(s).	CO	16	View →
Y877	NON-COVERED SERVICE.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
Y878	THERAPY MODIFIER REDUCES TO PERCENTAGE OF THE ALLOWED AMOUNT.	N657 This should be billed with the appropriate code for th…	CO	4	View →
Y879	PROFESSIONAL CLAIM IS A POSSIBLE DUPLICATE OF CLAIM IN HISTORY.	—	CO	18	View →
Y880	PROFESSIONAL CLAIM LINE IS A POSSIBLE DUPLICATE OF CLAIM LINE ID.	—	CO	18	View →
Y881	OUTPATIENT CLAIM IS A POSSIBLE DUPLICATE OF CLAIM IN HISTORY.	—	CO	18	View →
Y882	OUTPATIENT CLAIM LINE IS A POSSIBLE DUPLICATE OF CLAIM LINE IN HISTORY. (SAME CLAIM)	—	CO	18	View →
Y883	OUTPATIENT CLAIM LINE IS A POSSIBLE DUPLICATE OF CLAIM LINE. (HISTORICAL CLAIM)	—	CO	18	View →
Y884	INPATIENT CLAIM IS A POSSIBLE DUPLICATE OF CLAIM IN HISTORY.	—	CO	18	View →
Y885	THIS OP REVENUE CODE IS NOT ON THE LIST OF PAYABLE CODES SPECIFIED BY THE KENTUCKY MEDICAID BILLING…	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
Y886	DIAGNOSIS IS CONSIDERED AN ADDITIONAL CODE AND SHOULD NOT BE SUBMITTED AS PRIMARY.	MA63 Missing/incomplete/invalid principal diagnosis.	CO	16	View →
Y887	DISCREPANCY IN COVERED DAYS (VALUE CODE 80) AND UNITS BILLED ON ROOM AND BOARD REVENUE CODES (0100-…	M49 Missing/incomplete/invalid value code(s) or amount(s).	CO	16	View →
Y888	CHALLENGE INGESTION FOOD TESTING WILL BE DENIED IF BILLED WITH INAPPROPRIATE DIAGNOSIS CODE.	N130 Consult plan benefit documents/guidelines for informat…	CO	16	View →
Y889	HYDROPHILIC CONTACT LENSES BILLED WITH ONLY NONDISEASED EYES WITH SPHERICAL AMETROPIA, REFRACTIVE A…	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
Y890	DENY 90935-90940 (HEMODIALYSIS) WHEN BILLED AND THE ONLY DIAGNOSIS ON THE CLAIM IS 295-295.95 (SCHI…	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
Y891	DIABETES SCREENING TESTS BILLED WITH DIAGNOSIS Z131 ARE LIMITED TO ONE PER YEAR OR ONE EVERY SIX MO…	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
Y892	APPLYING PURCHASE PRICE BASED ON 10 MONTH RENTAL POLICY.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
Y893	ADVANCED KNEE, ANKLE AND FOOT PROSTHETICS ARE DENIED UNLESS BILLED WITH K0-K4 FUNCTIONAL MODIFIERS.	N657 This should be billed with the appropriate code for th…	CO	4	View →
Y894	NEW PATIENT VISITS ARE DENIED WHEN ANY SERVICE HAS PREVIOUSLY BEEN BILLED BY SAME FACILITY WITHIN T…	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
Y895	E&M SERVICES ARE DENIED WHEN BILLED ON SAME DOS AS THERAPEUTIC APHERESIS SERVICES .	N20 Service not payable with other service rendered on the…	CO	96	View →
Y896	A MAXIMUM OF 40 OCCURRENCES OF CPT 86003 (ALLERGEN SPECIFIC IGE; QUANTITATIVE OR SEMIQUANTITATIVE, …	N435 Exceeds number/frequency approved /allowed within time…	CO	119	View →
Y897	ANTEPARTUM CARE BY SAME PROVIDER GROUP	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
Y898	SPECIAL SERVICES BY EMERGENCY MEDICINE PROVIDER	N130 Consult plan benefit documents/guidelines for informat…	CO	16	View →
Y899	EXTERNAL COUNTERPULSATION (ECP) FOR SEVERE ANGINA - 1	N130 Consult plan benefit documents/guidelines for informat…	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.