When a payer denies a claim, there’s an appeal process you can use to push back – formally asking someone to reconsider a decision you disagree with – if you don’t believe it was justified. In medical billing, that usually means challenging a ruling that a service wasn’t covered or was coded incorrectly.

How is an appeal different from a regular complaint?

A complaint is informal – it’s raising a concern. An appeal is a structured, documented dispute with actual procedural steps. It:

– Follows a defined rule

– Has deadlines

– Produces a formal outcome

In law, an appeals court decides based entirely on what was already submitted at the lower court level. Payers work similarly in medical billing, payers work similarly – the record you build matters more than anything you say over the phone.

How does the appeal process work for denied claims?

Most appeals start with a written notice filed to the payer’s office. You include your supporting documents – the original claim and clinical notes, as well as any additional information that makes the case for why payment should have been granted. The payer then assigns a reviewer, sometimes an administrative judge, to see if your submission has any merit.

From there, there’s an established timeline for the payer to issue a response. If the appeal succeeds, your claim gets paid. If not, you can escalate – and a small number of cases do move to external review or, in more serious situations, a federal court proceeding.

What’s the difference between internal and external appeals?

An internal appeal is handled within the insurer itself. You submit your briefs and forms, and the payer issues a final decision. This is like arguing at the lower trial court level before you escalate further.

An external appeal would bring in a neutral panel under state or federal law. This process is a lot closer to judicial review, which is a litigant arguing the merits of their case before an independent body. The appeals court then decides based on the record, not on new submissions made after the fact.

What happens during the hearing?

Once a formal appeal has been filed, many payers move to a hearing stage. This is where you or someone on your behalf can make an oral argument – walking a reviewer through exactly why the agency’s decision was wrong. In more formal legal contexts, a court order may compel the release of specific records.

A transcript would usually be kept throughout this, and any new evidence introduced at this stage can shift the outcome. That’s often where appeals are won (not in the original filing, but in the details surfaced during review).

What should you include when you file?

When you file for an appeal in a medical billing dispute, you should, at minimum, include:

– The denial notice

– The original claim

– A written explanation in plain language

– A receipt confirming delivery – the clerk assigned to the case needs it logged to proceed

For example, a government payer like Medicare asks you to introduce each appeal level formally in writing, with a defined final order process before it’s ever escalated. According to CMS, there are five levels of Medicare appeals, and each of them has its own rule for what can be submitted and when.

Can an appeal be reversed?

A decision can absolutely be reversed at a higher level, usually through administrative review or a district court. In rare cases involving discrimination or significant disputes, it could go all the way to the supreme court. Most practice owners won’t deal with anything close to that scale. But in any formal appeal, the defendant is effectively the payer, and you’re the litigant making the case that the final order was wrong.

Why do most appeals fail?

Most medical billing appeals fail due to late filing – the most common problem. Additionally, any of the following can void an otherwise valid appeal:

– Missing the deadline

– Submitting incomplete forms

– Leaving out a key sentence explaining clinical necessity.

Also, a petition without sufficient context rarely moves forward. Getting it right the first time matters.

How does PMN help with the appeal process?

At PMN, managing denials and navigating the full appeal process is part of our everyday work. With over 20 years in medical billing and coding, we build clean claims from the start – and when a pair gets it wrong, we know how to fight back. Fortunately, it rarely gets to that stage, as we have a 99.98% first-time claim acceptance rate.  If denied claims are cutting into your revenue, we can help you recover it.

Interested in learning more about how it works? Get in touch by calling (949) 215-5055 or visiting our office in Laguna Hills, Orange County, California!