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N822 Remark Code: Required Procedure Modifier Missing

N822 means the payer requires one or more modifiers for the procedure billed and the claim line didn't include them. The line can usually be paid once it is resubmitted with the correct modifier.

Quick facts

Code
N822 (RARC N822)
Status
Active In use since July 1, 2019; last modified November 1, 2019.
Code set
Remittance Advice Remark Codes (RARC)
Group codes
  • CO (Contractual Obligation): The line was denied for a coding omission the provider can fix. It isn't billable to the patient.
Official description
Missing procedure modifier(s).
X12 Remittance Advice Remark Codes, retrieved September 25, 2026
Last verified
against the official X12 list.

What N822 means

Modifiers add information a procedure code can’t carry by itself: which side of the body, whether only the professional or technical component was provided, whether a service was distinct from another, whether it was delivered by telehealth, or which type of practitioner provided it. For some codes and payers, a modifier isn’t optional. N822 means one was required on your line and the payer found none.

The remark was split from an older combined code, and N823 now covers modifiers that were present but wrong. N822 typically comes with CARC 4 or CARC 16.

Common causes

  • Laterality not reported on procedures performed on paired body parts.
  • Component billing without the professional (26) or technical (TC) modifier when only one component was provided.
  • Therapy and practitioner-type modifiers that a payer requires on certain services.
  • Telehealth modifiers missing on services the payer requires to be identified as telehealth.
  • Payer-specific requirements, such as a Medicaid program requiring a program modifier on certain services.

How to fix it

  1. Look up the payer’s policy for the code to see which modifiers it requires and when.
  2. Confirm from the documentation which modifier describes the service as performed.
  3. Add the modifier in box 24D and check the order if several apply.
  4. Resubmit with resubmission code 7 in box 22 and the original claim number, or as a new claim if the original was rejected.

How to prevent it

  • Build modifier rules into your charge master and claim scrubber by payer and code.
  • Train coders on the modifier requirements of your highest-volume services.
  • Run claims through Claims Validator to catch lines missing a required modifier.
  • See NCCI and modifier denials for modifiers used to report distinct services.

Codes that may appear with N822

  • CO-4 (The procedure code is inconsistent with the modifier used.): The procedure code is inconsistent with the modifier used, or with the absence of one.
  • CO-16 (Claim/service lacks information or has submission/billing error(s).): The claim has a billing error; N822 identifies the missing modifier.
  • N823 (Incomplete/Invalid procedure modifier(s).): A modifier was reported but is incomplete or invalid.
  • N837 (Alert: Missing modifier was added.): The payer added the missing modifier itself and processed the line.
  • N519 (Invalid combination of HCPCS modifiers.): The combination of modifiers on the line is invalid.

N822 FAQ

How do I know which modifier was missing?

The remittance usually doesn't say. Check the payer's policy for the code, the type of service, and the circumstances, such as laterality, component billing, telehealth, or the type of clinician who performed it.

Should I send a corrected claim or a new one?

If the line was adjudicated and denied, most payers want a corrected claim with resubmission code 7. If the claim was rejected before adjudication, send a new claim.

Can I add a modifier just to get paid?

No. The modifier must describe what actually happened and be supported by the documentation.