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DENIAL REASONS

The most common denial reasons.

A handful of categories account for most denials. Bill Matters recognizes each one immediately, and knows exactly what it takes to overturn it.

Missing or Invalid Prior Authorization

An authorization existed but wasn't matched correctly on the payer's side, or the service required one that was never requested at all.

Eligibility Issues

Coverage had lapsed, changed plans, or wasn't active on the date of service, sometimes a data mismatch, not an actual gap.

Coding Errors

A wrong or outdated code, a missing modifier, or a mismatch between the diagnosis and procedure billed.

Timely Filing Exceeded

The claim reached the payer after their deadline, even when it was submitted on time, if the acknowledgment record wasn't kept.

Duplicate Claim Submission

The payer's system flags a claim as already processed, even for a legitimate resubmission or a distinct, separately billable service.

Insufficient Documentation for Medical Necessity

The clinical record didn't include everything the payer's medical-necessity policy required to support the service billed.

Coordination of Benefits Errors

The payer believes another insurer holds primary responsibility, based on outdated or incomplete coordination-of-benefits data on file.

You Earned It. Here's Why It's Not in Your Account.

Every denied or underpaid claim is money you already earned. The system just makes you fight for it.

Denial Volume Keeps Growing

More claims get denied every year, and each new one risks becoming money written off for good.

Every Denial Has a Hidden Cost

Staff lose hours to unbillable research and paperwork before an appeal is even written.

Payers Now Adjudicate with AI

AI reviews prior authorizations and denies claims faster than a person can appeal them one at a time.

Every Payer Runs Its Own Rules

Different portals, different documentation, different fee schedules, more manual work behind every appeal you file.

Appeals Still Get Written by Hand

Slow, inconsistent, built from scratch every time, deadlines get missed simply because nobody caught them in time.

Whatever the Reason, the Fix Starts With Reading It Right.

See how Bill Matters reads your specific denial code and builds the case around it.