N122Remark Code (RARC)Active
Effective 09/12/2002 · Updated 08/01/2005

N122 Remark Code - Add-on Code Cannot Be Billed Alone

The N122 remark code indicates that an add-on code has been submitted incorrectly. This remark signals that the add-on code cannot be billed independently and must be accompanied by a primary service code for proper processing.

How It Relates to the Denial

Typically, the N122 remark accompanies a claim adjustment reason code that indicates a denial or adjustment related to the billing of an add-on code. The combination of the two codes suggests that the add-on code was not supported by a valid primary service code, leading to the claim's denial or adjustment.

Common Scenarios

1A provider submits a claim for a procedure that includes an add-on code for additional services but does not include the primary procedure code. The remittance shows an adjustment for the add-on code.
→ In this scenario, the N122 remark indicates that the add-on code is not valid on its own and requires a primary procedure code to be billed correctly.
2A claim for a surgical procedure includes an add-on code for postoperative care, but the primary surgical code is missing in the submission. The payer returns an adjustment with the N122 remark.
→ This suggests that the add-on code for postoperative care cannot be processed since it lacks the corresponding primary surgical code, as indicated by the N122 remark.
3A claim includes an add-on code for a diagnostic test without the related primary test code. The remittance advice reflects an adjustment with the N122 remark.
→ Here, the N122 remark clarifies that the add-on code submitted cannot be processed alone, reinforcing the necessity of a primary code for proper billing.

What to Do

  1. Include the appropriate primary service code on the claim to support the add-on code.
  2. Review the claim submission to ensure that the add-on code is correctly paired with its primary procedure code before resubmission.

What to Check

  • The claim form for the presence of a primary service code corresponding to the add-on code.
  • The payer's guidelines on billing add-on codes to confirm proper usage.
  • The remittance advice to verify the adjustment reason code accompanying the N122 remark.