N892 remark code

Remittance advice remark code N892. Remark codes add detail to the reason code on the same claim line.

Delay reason code not accepted

Unofficial reference. This is our own plain-English explanation, not the official code text. Payer rules differ. Verify with the payer and the official X12 code list. AlphaPrefix is not affiliated with X12, CMS or any payer. Data last updated Nov 11, 2026.

What N892 means

The claim used a delay reason code to explain late filing, but the payer did not accept it for this situation.

A delay reason code tells a payer why a claim was filed after the usual deadline, such as a retroactive eligibility change or a delay by another payer. N892 means the payer reviewed the reason given and found it does not qualify.

It usually supports timely filing reason code 29. The claim is then treated as late unless you can show the delay was valid.

Common causes

• The delay reason chosen does not match what actually caused the late filing.
• No supporting proof was supplied for the delay reason claimed.
• The payer does not recognize that delay reason for this claim type.

What to do next

1. Check which delay reason code was sent and whether it matches the real cause.
2. Gather proof, such as the retro eligibility notice or the other payer's late remittance.
3. Appeal with that proof if the delay was valid under the payer's rules.
4. Review timely filing workflows so delay reason codes are used only when they apply.

Related codes

• 29 (reason code) Timely filing limit has passed
• N704 (remark code) No appeal, but can be corrected
• N1 (remark code) Appeal rights notice