Look up another code

N783 Remark Code: QMB Patient, Copayment Alert

N783 is an alert that the patient is a Medicaid or Qualified Medicare Beneficiary. You should review your records for any copayment wrongly collected from them. The copayment may be billed to a subsequent payer, but not to the patient.

Code: N783 (RARC N783)
Status: Active In use since November 1, 2016; last modified March 1, 2018.
Code set: Remittance Advice Remark Codes (RARC)
Group codes: OA (Other Adjustment): The copayment is not collectible from the patient and may be billed to Medicaid or another subsequent payer.
PR (Patient Responsibility): Even when shown as patient responsibility, QMB protections generally bar collecting the copayment from the patient.
Official description: Alert: Patient is a Medicaid/ Qualified Medicare Beneficiary. Review your records for any wrongfully collected copayment. This amount may be billed to a subsequent payer.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified: September 24, 2026 against the official X12 list.

What N783 means

N783 is about copayments, the flat amounts collected at many visits, particularly under Medicare Advantage plans. For a Qualified Medicare Beneficiary, those copays are not collectible from the patient. The alert asks you to check whether one was taken anyway.

Copays are usually collected at check-in before any claim is processed, which is why this alert often finds money that has to go back to the patient.

What to do

Check payments collected at the visit and on any statements.
Refund copayments collected from the patient for Medicare-covered services.
Bill Medicaid, or the patient’s Medicaid plan, for the copayment as subsequent payer.
Add a QMB flag to the account so check-in staff do not request copays.
Verify QMB status at future visits, since eligibility can change.

Codes that may appear with N783

PR-3 (Co-payment Amount): The copayment amount N783 is about.
OA-209 (Per regulatory or other agreement.): The provider cannot collect the amount from the patient; refund it if collected.

N781 (Alert: Patient is a Medicaid/ Qualified Medicare Beneficiary.): The QMB alert for the deductible.
N782 (Alert: Patient is a Medicaid/ Qualified Medicare Beneficiary.): The QMB alert for coinsurance.
N766 (This payer does not cover co-payment assessed by a previous payer.): A secondary payer does not cover a copayment assigned by a prior payer.

N783 FAQ

Where would a QMB patient face a copayment?

Copayments are common in Medicare Advantage plans and apply to some Medicare services. QMB protections cover them just as they cover deductibles and coinsurance.

What if the front desk collected the copay automatically?

Refund it and update the account so copays are not requested at future visits.

Can Medicaid pay the copayment?

It may pay some or all of it, depending on state rules. Bill Medicaid as the subsequent payer.

Important: read before using this information

This page is general educational information about a standard industry code set. It is not medical billing, coding, legal, reimbursement, or compliance advice, and it does not create a professional or advisory relationship with ClaimsRevenue.

Code definitions, payer usage, contracts, and laws change, and payers may apply the same code differently. The information is provided “as is,” without warranties of any kind, express or implied, including accuracy, completeness, or currency. You are solely responsible for verifying it against the current official X12 code lists, CMS guidance, your payer contracts, and payer policies before relying on it, and for every billing, coding, collection, and appeal decision you make.

Using this information does not guarantee that any claim will be paid or that any appeal will succeed. To the fullest extent permitted by law, ClaimsRevenue and MOODRX LLC are not liable for any loss or damage arising from its use. Official code descriptions are published by X12 and are quoted for reference only. See our full Claims Validation Disclaimer.