Health insurance denial & claim adjustment codes

What health insurance denial code 302 means on your EOB

The authorization existed but its window closed before the care happened. Extensions are often available and often never requested.

What usually causes it

• Scheduling delays pushed the service past the window.
• The window was shorter than the care pathway realistically allows.
• An extension was available but never requested.

The documents that decide it

• The authorization letter showing its expiry.
• The date of service.
• Any record of a scheduling delay outside your control.

What to do next

If the delay was caused by the provider or the facility, that is worth stating — plans distinguish patient-caused delay from system-caused delay.

This page explains what a code means. It is information, not advice — it does not tell you whether your specific claim should have been paid, and it is not legal, medical, or insurance advice. Your plan documents and your denial notice govern your situation.