Skip to main content

N603 Remark Code: New Jersey PIP Medical Fee Schedule

N603 means the payer calculated the fee using the New Jersey medical fee schedules for Automobile Personal Injury Protection and Motor Bus Medical Expense Insurance Coverage. The allowance is the amount the state schedule sets for the service.

Quick facts

Code
N603 (RARC N603)
Status
Active In use since July 15, 2013.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): The reduction to the New Jersey PIP fee schedule. New Jersey rules generally limit what providers can collect beyond the schedule amount.
  • PR (Patient Responsibility): Patient cost-sharing under the policy, such as a PIP deductible or copayment, appears separately under PR.
Official description
This fee is calculated according to the New Jersey medical fee schedules for Automobile Personal Injury Protection and Motor Bus Medical Expense Insurance Coverage.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N603 means

New Jersey sets maximum fees for medical care paid under auto Personal Injury Protection and motor bus medical expense coverage. N603 tells you the carrier applied those state fee schedules to price your service. Any charge above the schedule was adjusted off.

This remark applies only to New Jersey auto and motor bus injury claims. It usually appears with CARC P23 or CARC 45.

How to check the allowance

  1. Find the service on the New Jersey PIP fee schedule for the date of service, using the correct fee region for your location.
  2. Apply the schedule’s rules, such as those for modifiers, multiple procedures, and site of service.
  3. Compare to the remittance. Remember that the PIP deductible and copayment reduce the payment but not the allowed amount.

If you disagree

  • Ask the carrier how it calculated the fee and which region it used.
  • Correct the claim with resubmission code 7 if a code, modifier, or location was wrong.
  • Follow the carrier’s internal appeal process and New Jersey’s dispute resolution process for PIP claims, which has its own filing requirements.

Staying accurate

Keep the New Jersey PIP fee schedule loaded as its own payer schedule, separate from commercial contracts, and review it when the state issues updates. For precertification and care-path requirements, which New Jersey PIP policies commonly use, see authorization and referral denials.

Codes that may appear with N603

  • CO-P23 (Medical Payments Coverage (MPC) or Personal Injury Protection (PIP)): A PIP jurisdictional fee schedule adjustment.
  • CO-45 (Charge exceeds fee schedule/maximum allowable or contracted/legislated fee arrangement.): The charge exceeds the fee schedule or maximum allowable amount.
  • N599 (Our payment for this service is based upon a reasonable amount pursuant to both the terms and conditions of the policy of insurance under which the…): Florida's no-fault reasonable amount method.
  • N604 (In accordance with New York No-Fault Law, Regulation 68, this base fee was calculated according to the New York Workers' Compensation Board Schedule…): New York no-fault fees calculated from the workers' compensation schedule.
  • N577 (Personal Injury Protection (PIP)): Identifies Personal Injury Protection coverage.

N603 FAQ

Who publishes the New Jersey PIP fee schedule?

The New Jersey Department of Banking and Insurance. It covers physician, hospital, ambulatory surgery, and other services for auto PIP claims.

What is Motor Bus Medical Expense coverage?

A New Jersey coverage for injuries to bus passengers. The state applies its PIP fee schedules to it as well.

What if the service isn't on the schedule?

State rules describe how unlisted services are priced. Ask the carrier how it valued the service and compare it to the rules.