Health insurance denial & claim adjustment codes

What health insurance denial code 276 means on your EOB

The secondary followed the primary's denial. If you overturn the primary denial, this one usually falls with it.

What usually causes it

• The primary denied and the secondary mirrored it.
• The secondary applies the primary's medical policy.
• No independent review was performed.

The documents that decide it

• The primary's denial and its reason.
• The secondary's denial.
• Your secondary plan's terms.

What to do next

Appeal the primary denial first. Winning there usually resolves the secondary automatically, and appealing both at once wastes a cycle.

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.