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N922 Remark Code: Missing Primary Care Dentist Info

N922 means the claim is missing primary care dentist information. Dental plans that assign each member to a primary care dentist, such as dental HMOs, may need that dentist identified, particularly on specialist claims, before they will process the claim.

Quick facts

Code
N922 (RARC N922)
Status
Active In use since March 1, 2026.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): The unpaid amount while the primary care dentist information is missing. It is a claim data problem for the provider to fix.
Official description
Missing primary care dentist information.
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N922 means

In managed dental plans, each member has a home dental office. That office handles routine care and often refers members to specialists. When a claim comes in, the plan wants to know the member’s primary care dentist so it can confirm the care flowed through the right office or referral.

N922 says that information was not on the claim. The plan could not complete its check.

Common causes

  • A specialist billed without identifying the referring primary care dentist.
  • The member’s assignment was not verified before the visit.
  • The claim was built from a template that leaves the referral or assigned dentist fields blank.
  • The member recently changed assigned dentists.

How to fix it

  1. Verify the member’s assigned primary care dentist for the date of service.
  2. Get the referral if the plan requires one for your services.
  3. Correct and resubmit the claim with the primary care dentist’s name and identifier in the fields the plan specifies.
  4. Contact the plan if its assignment record is wrong.

How to prevent it

Check assignment and referral status for every managed dental plan member at scheduling, and store the primary care dentist on the patient’s insurance record.

Codes that may appear with N922

  • CO-16 (Claim/service lacks information or has submission/billing error(s).): The claim lacks information needed for adjudication.
  • CO-288 (Referral absent): A referral is absent, which often accompanies missing primary care dentist details on specialist claims.
  • CO-242 (Services not provided by network/primary care providers.): Services not provided by network or primary care providers.
  • N778 (Missing Primary Care Physician Information.): The medical counterpart: missing primary care physician information.
  • CO-243 (Services not authorized by network/primary care providers.): Services were not authorized by the network or primary care provider.

N922 FAQ

Which plans require a primary care dentist?

Mostly dental HMO or DMO plans and some Medicaid dental programs, where members choose or are assigned a general dentist who coordinates their care.

How do I find the assigned dentist?

Check the plan's eligibility response or provider portal, or ask the member for their plan card, which sometimes lists the assigned office.

What if my office is the primary care dentist?

Make sure your office is identified correctly on the claim and matches the plan's assignment record. If the plan has the member assigned elsewhere, the member may need to change assignment.