What Happens If Your Medical Claims Keep Getting Denied

One denied claim is an annoyance. Ten denied claims a week is a revenue problem. An office manager I talked to once said that her clean claim rate dropped from the low 90s to the 70s over the course of two quarters, and no one noticed until the accountant pointed out a cash flow gap. That’s how claim rejections almost always happen. Slowly and quietly until the numbers make you talk. 

A lot of different things can be to blame if your medical claims keep getting turned down. Usually, it’s a bunch of small process gaps working together. What is a denial? Why does it happen? How much does it cost your business when it happens often? What can you do to stop it before it becomes a big problem with your income cycle? 

What Is a Medical Claim Denial? 

A medical claim rejection is when a payer looks over a claim but decides not to pay it, either in full or in part, for reasons listed in the payment advice. Claims that are just waiting or delayed are not the same as claims that have been denied. A denial means that the payer officially decided not to reimburse, at least not until the claim was fixed and resubmitted. 

There are common reason codes called “denial codes” that tell you why the payer turned down the claim. These codes range from simple, like a missing marker, to complicated, like a disagreement over medical necessity that needs clinical evidence to be settled. Instead of just resubmitting and hoping for a different result, the first thing that needs to be done is to understand these codes. 

Not all denials can be avoided. Some are caused by real coverage gaps or policy exclusions that can’t be fixed by clean billing. But most rejections are caused by problems with the way things are done in practice. This means that most of them can be avoided with the right methods in place. 

The Difference Between Claim Denials and Rejections 

People often use these two words to mean the same thing, but they actually mean different things. Knowing the difference will affect how you react. 

A refusal happens before the claim is even looked at. The clearinghouse or the payer’s front-end system finds it. This is usually because of a mistake in the formatting, a member ID that doesn’t work, or a required field that is missing. Rejected claims aren’t handled, so they need to be fixed and sent again right away, preferably the same day, so they don’t start the payer’s clock ticking again. 

Once the claim has been decided, it is denied. The payer looked at it and decided not to pay, possibly because of a medical necessity, a lack of prior permission, problems with filing on time, or issues with coordinating benefits. For rejections, you need to go through the appeals process instead of just resubmitting, which takes longer and requires more paperwork than changing a rejection. 

When practices don’t tell the difference, they often mess up both of them. If you treat a rejection like an easy resubmission, you’ll waste time and probably get another rejection for the same reason, since the real problem wasn’t fixed. 

Top Reasons Medical Claims Get Denied 

Most rejections across all offices and areas are caused by just a few things. Near the top of the list is patient information that is missing or not accurate. This could be a mistyped member ID, an old insurance policy number, or a name difference between the claim and the payer’s records. 

Problems with eligibility are close behind. A patient may no longer have coverage, have had their coverage change, or need a different plan tier than what was on file at the time of service. Without real-time qualifying checks at check-in, practices file claims for coverage that doesn’t apply anymore. 

A lot of rejections are also due to coding mistakes, such as using the wrong CPT or ICD-10 codes, not including modifiers, or having a diagnosis code that doesn’t match the treatment that was billed. Payers use computerized logic to find these mistakes right away, so even small mistakes in the code are always caught.  

One of the most expensive reasons for denial is not having prior authorization, which usually applies to more expensive procedures. If a service needs prior approval and none was obtained, the payer will not pay for it at all, even if it is medically necessary. 

Claims that are sent in after the payer’s deadline, which is different for each payer but is usually between 90 and 365 days from the date of service, are denied. Most of the time, you can’t fight these decisions, which makes them some of the hardest to deal with because the money is gone. 

Most of the time, it’s because of sending in two or more claims at the same time, coordinating benefits mistakes when a patient has more than one insurance plan, or problems with bundling or unbundling services that should have been paid separately or together. 

Documentation gaps should be talked about on their own. An insurer can refuse a claim for lack of medical necessity even if the code is right if the clinical paperwork doesn’t clearly back the service being billed. This happens a lot with higher-level management and evaluation codes, and payers look closely to see if the complexity documented matches the complexity that was submitted. These kinds of claims happen less often when doctors write down everything at the point of care instead of depending on memory later. 

Denials can also be caused by problems with enrolling providers, which are often mistaken for coding problems. If a doctor isn’t properly registered with a certain payer or if their registration information is out of date because they moved practices or changed their address, then any claims they send to that payer will be automatically rejected, even if the codes are correct. 

How Denials Impact Practice Revenue 

Unpaid claims mean unpaid services, so it’s clear that the direct cash hit is big. But the effect that hurts a practice’s finances over time is the compounding effect. 

Every rejected claim that has to be redone costs staff time because they have to find out why the claim was denied, fix it, gather proof, and either resend it or file an appeal. This means that the cost of labor stays the same whether the claim is paid or not. This means that high denial rates raise the cost of administration even when most claims are eventually paid. 

Another layer is the delay in cash flow. It can take 30 to 60 more days to settle a claim that is rejected and then modified than a claim that is paid on the first entry. For practices with small profit margins, that delay really hurts their ability to pay their staff and cover their costs, even if they could technically get the money back. 

And then there’s the money that was made but not spent. Denials of timely filings, claims dropped because staff didn’t have time to argue, and claims written off after being turned down multiple times all result in lasting income loss. When a practice’s rejection rate is above the 5 to 10 percent range most industry standards consider good, they don’t always understand how much lost income that is until they add it up over a whole year. 

There’s also a morale cost that isn’t talked about much. People who work in billing and have to deal with denials all week instead of processing valid claims get tired more quickly. That burnout leads to turnover, and when people leave, the company loses track of which payers are hard to work with and which claims are still being appealed. It keeps going by itself. High denial rates make employees too busy to do their jobs, and when they leave, the next person hired has to start from scratch while the backlog of denials keeps growing. 

There is also a loss of patient trust, even if it’s not direct. Claims that are denied and then reprocessed slowly can lead to patients getting confusing statements or balances they didn’t expect months after their visit. That tension shows up in patient happiness numbers and sometimes leads patients to switch offices just because they didn’t like how the payment process worked. 

Steps to Reduce Claim Denials 

Denial reduction happens before the claim is sent in, not after it gets turned down. Verifying a patient’s eligibility in real time at the time of check-in is one of the most effective and inexpensive ways for a practice to catch coverage problems before they become billing problems. 

Claim cleaning software checks for code mistakes, missing fields, and mismatches before sending the claim. It does this by adding a quality control layer between the person entering the charge and the clearinghouse. It is much more common for practices that don’t use scrubbing to get denied on the first try than for practices that do. 

Standardizing tracking of prior authorization stops the most expensive type of denial. This means making a list or system flag for any process code that usually needs to be approved first; that way, nothing gets missed because a staff member forgot to include a certain payer’s rule. 

Staff training on rules that are special to payers is more important than most practices give it credit for. Policies from payers change all the time, so what worked for a certain procedure code last year might not work this year. By giving billing staff training every three months, you can keep them up to date without having to rely on trial and error. 

By keeping track of rejection trends by payer and reason code, problems that were spread out become clear patterns. If the same buyer keeps turning down a certain code, that’s a flaw in the process that can be fixed, but only if someone is keeping track of it. 

It also helps to make sure that denials are clearly owned by the right people. Denials are often thought of as the job of everyone, but they’re really the job of no one. Assigning a person or team to handle rejections within a certain amount of time, say 48 hours of arrival, stops the pile from rising while daily chores are being done. 

Best Practices for Clean Claim Submission 

A clean claim rate, which is the number of claims that are paid on the first submission without any changes, is one of the best ways to tell if the revenue cycle is healthy. A clean claim rate in the mid-90s or better is what strong practices aim for. 

The first step toward that goal is accurate and complete charge capture at the point of care. This means that documentation and coding should happen at the same time, not days apart when details start to get fuzzy. You can catch the changes in coverage that lead to a lot of rejections by double-checking the patient’s data and insurance information at every visit, not just the first one. 

It is necessary to use newer versions of the CPT and ICD-10 code sets every year because providers update their systems to reflect these changes, and old codes cause automatic rejections. Most mistakes can be avoided by making a pre-submission checklist that checks the status of prior authorization, accuracy of modifiers, and coordination of benefits information before the claim is sent. This way, most mistakes can be caught before they cost the practice time and money. 

It’s also important that all of the workers are the same, especially in group settings. It’s harder for billing staff to get into good habits when each doctor documents and codes slightly differently. It’s also harder to find patterns of denials. When a practice, even a small one, uses the same documentation templates and coding rules, there is less variation that shows up as different denial rates from one provider to the next. 

When to Seek Professional Billing Support 

If your rejection rates stay high even after improving your internal processes or if the number of denials has gotten too high for your current staff to handle, that’s usually a sign that you need to bring in outside help. When someone keeps getting denied access, especially when there were gaps in their permission or credentials, it’s usually because of a bigger problem that can’t be fixed with just some code changes. 

A surprising number of rejections are mistakenly thought to be code problems because of gaps in credentials. If a provider’s enrollment with a payer has expired or wasn’t updated after a practice change, claims will be turned down no matter how well they were coded. Credex Healthcare directly handles this issue by combining accurate identification with help with billing and rejection management.  

This closes the enrollment status gap and claim filing gap that leads to so many repeated denials. When practices are thinking about getting outside help, they can also look at services from well-known billing companies. Each of these companies offers a different amount of dispute management and a focus on a specific area of medicine. 

Giving someone else the whole bill is rarely the right thing to do without first figuring out what’s going wrong. If you know that denials are caused by problems with coding, credentials, eligibility, or authorization gaps, you can figure out whether the solution is to change the way things are done, spend money on training, or find a specialized partner. 

FAQs 

What’s the difference between a claim denial and a claim rejection?  

A rejection is stopped before it is processed because of a problem with the style or the data. A denial is made after the payer looks over the request and officially declines to pay. 

What percentage of denied claims can typically be appealed successfully?  

Many denials can be overturned through appeal, but how quickly the appeal is made and the reason for the rejection play a big role in how successful it is. 

How long do practices have to appeal a denied claim?  

Appeal windows vary by payer but are usually 30 to 180 days from the date of rejection, so it’s important to keep track of the dates. 

What is considered a healthy clean claim rate?  

Most industry standards say that a clean claim rate in the mid-90s or higher means that the billing process is working well.

Can credentialing issues cause claim denials?  

Yes, missed or wrong user registration is a regular reason for rejections that has nothing to do with the correct code that is often ignored. 

Should a practice with high denial rates switch billing systems or get outside help first?  

Figuring out the root cause first, whether it’s coding, credentialing, or eligibility, usually leads to a better solution than switching systems without any knowledge of what’s wrong.