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

🚫

Looking for Denial Codes (CARC)?

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

→

Showing 1,351–1,400 of 2,818 remark codes in group CO

✕ Clear filters

Remark Code	Description	RA835 Code	Group	Reason Code
X728	SERVICES CONSIDERED PART OF THE PEDIATRIC CRITICAL CARE INTERFACILITY TRANSPORT WILL BE DENIED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X729	PER NCD GUIDELINES, CMS ID , A DIAGNOSIS CODE, WHICH MEETS MEDICAL NECESSITY FOR PROCEDURE CODE, IS…	M64 Missing/incomplete/invalid other diagnosis.	CO	16	View →
X73	PARTIAL HOSPITALIZATION SERVICE FOR NON-MENTAL HEALTH DIAGNOSIS	—	CO	11	View →
X730	PROSTATE SPECIFIC ANTIGEN IS NOT COVERED BY MEDICARE WHEN BILLED MORE THAN TWICE IN A PATIENT'S LIF…	N640 Exceeds number/frequency approved/allowed within time …	CO	151	View →
X731	DEBRIDEMENT IS NOT COVERED BY CMS WHEN BILLED WITH PRESSURE ULCER STAGE I DIAGNOSIS AND NO OTHER PR…	M64 Missing/incomplete/invalid other diagnosis.	CO	16	View →
X732	PROFESSIONAL SERVICES FOR THE SUPERVISION OF PREPARATION AND PROVISION OF ANTIGENS FOR ALLERGEN IMM…	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X733	IMMUNIZATION ADMINISTRATION MUST BE BILLED WITH A VALID VACCINE/TOXOID CODE.	M51 Missing/incomplete/invalid procedure code(s).	CO	16	View →
X734	GLOBAL OBSTETRICAL DELIVERY WILL BE DENIED WHEN BILLED WITH AN ASSISTANT SURGEON MODIFIER.	N657 This should be billed with the appropriate code for th…	CO	4	View →
X735	REIMBURSEMENT FOR AN ASSISTANT SURGEON WHEN BILLED BY THE PRIMARY SURGEON WILL BE DENIED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X736	ONCE PER LIFETIME PROCEDURES OR SERVICES BILLED MORE THAN ONCE FOR A PATIENT, THE REPEATED SERVICE …	N640 Exceeds number/frequency approved/allowed within time …	CO	151	View →
X737	DIRECT CONTACT PROLONGED PHYSICIAN SERVICE IN THE INPATIENT OR OBSERVATION SETTING MUST BE BILLED W…	N428 Not covered when performed in this place of service.	CO	5	View →
X738	DENY OB ULTRASOUND CODES 76802, 76810, 76812 WHEN BILLED WITHOUT THE REQUISITE DIAGNOSIS	M76 Missing/incomplete/invalid diagnosis or condition.	CO	16	View →
X739	ONLY ONE REIMBURSEMENT IS PERMITTED FOR ONCE-IN-A-LIFETIME SERVICES	N640 Exceeds number/frequency approved/allowed within time …	CO	151	View →
X74	INSUFFICIENT SERVICES ON DAY OF PARTIAL HOSPITALIZATION	—	CO	16	View →
X740	GYNECOLOGIC SCREENING SERVICE WILL BE DENIED WHEN BILLED WITH PREVENTIVE MEDICINE VISITS OR ANNUAL …	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X741	RHYTHM ECG, INTERPRETATION AND REPORT ONLY BILLED WITH AN EVALUATION AND MANAGEMENT SERVICE IN THE …	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X742	E/M SERVICE BILLED WITH IMMUNIZATION ADMINISTRATION WILL BE DENIED	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X743	C-CODE IS NOT VALID WHEN BILLED AS A PROFESSIONAL CLAIM	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X744	SURGICAL DRESSINGS BILLED WITH INVALID PLACE OF SERVICE WILL BE DENIED	M77 Missing/incomplete/invalid/inappropriate place of serv…	CO	5	View →
X745	SERVICE WITH A NON-FACILITY NA INDICATOR OF "N/A" WILL BE DENIED WHEN BILLED IN PHYSICIAN'S OFFICE …	M77 Missing/incomplete/invalid/inappropriate place of serv…	CO	5	View →
X746	STEREOTACTIC RADIOSURGERY BILLED MORE THAN ONCE WITHIN 90 DAYS WILL BE DENIED.	N640 Exceeds number/frequency approved/allowed within time …	CO	151	View →
X747	TOPICAL APPLICATION OF OXYGEN/TOPICAL HYPERBARIC OXYGEN WILL BE DENIED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X748	AIR FLUIDIZED BED IS NOT COVERED WITHOUT AN APPROPRIATE DIAGNOSIS	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X749	HOME BLOOD GLUCOSE MONITOR IS NOT COVERED WITHOUT AN APPROPRIATE DIAGNOSIS	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X75	PARTIAL HOSPITALIZATION ON SAME DAY AS ECT OR TYPE T PROCEDURE	—	CO	233	View →
X750	THERAPY FOR THE TREATMENT OF WOUNDS IS NOT COVERED WITHOUT AN APPROPRIATE DIAGNOSIS	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X751	WOUND WARMING DEVICE IS NOT COVERED	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X752	BONE DENSITY SERVICE REQUIRES AN APPROPRIATE DIAGNOSIS.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X753	VITRECTOMIES BILLED WITHOUT A REQUIRED DIAGNOSIS CODE WILL BE DENIED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X754	REFRACTIVE KERATOPLASTY WILL BE DENIED WHEN THE ONLY DIAGNOSIS CODE IS HYPEROPIA, MYOPIA OR ASTIGMA…	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X755	OFFICE CONSULTATION CODES BILLED WITH ROUTINE EXAMINATION DIAGNOSIS CODES WILL BE DENIED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X756	AUDITORY SCREENING BILLED WITH WITH PREVENTIVE MEDICINE VISITS WILL BE DENIED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X757	SPECIAL FUNCTION INTRAOCULAR LENS BILLED WITHOUT THE APPROPRIATE CATARACT REMOVAL SURGICAL CODES WI…	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X758	ALL USES OF SNCT TO DIAGNOSE SENSORY NEUROPATHIES OR RADICULOPATHIES ARE NONCOVERED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X759	VAGUS NERVE STIMULATION BILLED WITH A DIAGNOSIS OF DEPRESSION WILL BE DENIED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X76	PARTIAL HOSPITALIZATION CLAIM SPANS 3 OR LESS DAYS WITH INSUFFICIENT SERVICES ON AT LEAST ONE OF TH…	—	CO	16	View →
X760	VISUAL ACUITY SCREENING WILL BE DENIED WHEN BILLED WITH E/M SERVICES.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X761	DIAGNOSTIC IMAGING PROCEDURE REQUIRES A VALID PLACE OF SERVICE	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X762	DIRECT LARYNGOSCOPY PERFORMED ON PATIENTS UNDER AGE 2 REQUIRES A VALID PLACE OF SERVICE	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X763	VIDEOFLUOROSCOPY/ENDOSCOPIC SWALLOWING STUDIES REQUIRES A VALID PLACE OF SERVICE	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X764	HYPERBARIC OXYGEN REQUIRES A VALID DIAGNOSIS AND PLACE OF SERVICE	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X765	GASTRIC FREEZING IS A NON-COVERED SERVICE.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X766	VENIPUNCTURE BILLED WITHOUT A COVERED DIAGNOSIS CODE WILL BE DENIED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X767	CLINICAL TRIALS BILLED WITHOUT REQUIRED MODIFIER AND DIAGNOSIS CODE WILL BE DENIED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X768	SERVICES THAT ARE ELECTIVE IN NATURE AND DO NOT REMEDY A HEALTH STATE ARE CONSIDERED NONCOVERED.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X769	DIGITAL RECTAL EXAMINATION BILLED WITH PREVENTIVE MEDICINE E/M CODES OR WELLNESS VISITS WILL BE DEN…	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X77	PARTIAL HOSPITALIZATION CLAIM SPANS MORE THAN 3 DAYS WITH INSUFFICIENT NUMBER OF DAYS HAVING MENTAL…	—	CO	16	View →
X770	EXCISION/DESTRUCTION/CRYOTHERAPY OF BENIGN OR PREMALIGNANT SKIN LESIONS BILLED WITH INAPPROPRIATE P…	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X771	THERAPEUTIC, PROPHYLACTIC, AND DIAGNOSTIC INJECTIONS AND INFUSIONS BILLED WITH INAPPROPRIATE PLACE …	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →
X772	FABRIC WRAPPING OF ABDOMINAL ANEURYSMS IS A NON-COVERED SERVICE.	N130 Consult plan benefit documents/guidelines for informat…	CO	96	View →

📋

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.

🔗

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.