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N762 Remark Code: Not Certified for 3-D Mammography

N762 means the facility that performed the service is not certified for tomosynthesis, or 3-D, mammography according to the payer's records. Payment for the 3-D portion is denied until the facility's certification is confirmed.

Quick facts

Code
N762 (RARC N762)
Status
Active In use since November 1, 2015.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): The facility bears the denial. It is not billable to the patient.
Official description
This facility is not certified for Tomosynthesis (3-D) mammography.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N762 means

Mammography facilities must be certified, and certification is modality-specific. A facility approved for 2-D digital mammography is not automatically approved for digital breast tomosynthesis. Payers, including Medicare, keep a record of each facility’s certified modalities and check claims against it.

N762 says the payer’s record for your facility did not include 3-D tomosynthesis on the date of service. It typically pairs with CARC B7 or CARC 171 and affects only the lines for the tomosynthesis service.

Common causes

  • A new tomosynthesis unit went into use before the certification was extended to it.
  • The certification was updated, but the payer’s file was not.
  • The claim listed a different facility location than the certified one.
  • The certification lapsed or was under renewal on the date of service.

How to fix it

  1. Check the facility’s certificate and confirm it covers 3-D tomosynthesis and the date of service.
  2. Confirm the service facility on the claim (box 32 and 32a on the CMS-1500) is the certified site.
  3. If the claim listed the wrong site, submit a corrected claim with resubmission code 7.
  4. If certification was valid, send the payer proof and ask for reprocessing.
  5. If certification was not in place, stop billing tomosynthesis at that site until it is.

How to prevent it

Coordinate imaging equipment rollouts with certification and payer notification, and do not start billing 3-D services until every payer’s file shows the modality. Track certificate expiration dates with the rest of your facility credentials.

Codes that may appear with N762

  • CO-B7 (This provider was not certified/eligible to be paid for this procedure/service on this date of service.): The provider was not certified or eligible to be paid for this service on this date.
  • CO-171 (Payment is denied when performed/billed by this type of provider in this type of facility.): Payment is denied when billed by this type of provider in this type of facility.
  • N92 (This facility is not certified for digital mammography.): The facility is not certified for digital mammography.
  • N110 (This facility is not certified for film mammography.): The facility is not certified for film mammography.
  • N760 (This facility is not authorized to receive payment for the service(s).): The facility is not authorized to receive payment, for broader reasons.
  • N404 (Incomplete/invalid facility certification.): The facility certification is incomplete or invalid.

N762 FAQ

What certification does N762 refer to?

Mammography facilities in the U.S. must be certified under the federal Mammography Quality Standards Act, and the certification specifies the modalities covered. Payers check that 3-D tomosynthesis is included for the facility.

Our unit is certified. Why did we get N762?

The payer's records may not reflect the certification, or it may have been added after the date of service. Send the certificate showing the effective date and ask the payer to update its file.

Is the 2-D mammogram still payable?

Often yes, if the facility is certified for digital mammography. N762 usually affects the tomosynthesis add-on or service. Review how each line processed.