N30 remark code

Remittance advice remark code N30. Remark codes add detail to the reason code on the same claim line.

Patient not eligible for this service

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 N30 means

The patient's coverage was active, but it does not extend to this particular type of service.

N30 is narrower than a lapse in coverage. The member was on file, but the plan or program they are enrolled in does not include this kind of service, or they do not meet the conditions to receive it under the plan.

It often accompanies a non-covered or benefit reason code. Look at the group code to see whether the payer assigned the balance to the patient.

Common causes

• The member's plan type excludes the service, such as a limited benefit or special program plan.
• Age, sex or program rules make the patient ineligible for that particular benefit.
• The service falls under a carve-out handled by a separate vendor.

What to do next

1. Run a detailed eligibility check showing the member's benefits for that service type.
2. Check whether a carve-out vendor or another program covers the service instead.
3. Review any waiver or advance notice the patient signed before considering patient billing.
4. Appeal if the plan documents show the service is in fact covered.

Related codes

• N130 (remark code) Check plan benefits for restrictions
• 96 (reason code) Service not covered by the plan
• 204 (reason code) Not covered under the patient's plan