Rivet Health Blog

The Top Causes of Healthcare Payment Variance

Written by Rivet Contributor | Mar 20, 2026 10:08:16 PM

Medical underpayments are a significant challenge healthcare providers face. Providers are reliant on payers, yet payer-related payment discrepancies are common. 

If your facility is struggling with this problem, it’s important to know how to accurately identify the scope of the issue to find the best solution. Learn more about the causes of healthcare underpayments and what options you can implement.

What Are Healthcare Underpayments?

What is underpayment in medical billing? Healthcare payment variances occurs when the payor reimburses different to what is expected of the full eligible amount to a healthcare provider for the services they offer patients. Underpayments can happen due to both payor and provider errors. 

These aren’t claim denials, however, which occur when a claim or line item is not paid at all.. Claim denials are sometimes easier to address, especially since payers generally won’t tell you if they’re underpaying. Instead, they’ll pay the billed amount but not the contracted amount, and it can be very difficult to contest that.

Common Causes of Healthcare Underpayments

Underpayments in healthcare can occur for a few common reasons. 

Payor-Related Issues

Contract terms need to be reviewed, and payer-provider discussions must be had if systemic payment issues abound. Sometimes escalators have not yet been implemented, chargemasters need to be updated, or you may not have up-to-date contracted rates. This requires healthcare providers to keep eagle eyes on each reimbursement and hold them accountable if there’s a variance. 

Another concern is an incorrect diagnosis-related group (DRG) application. Sometimes claims are recoded and that can lower reimbursement. There may also be an incorrect bundling of services and other processing errors that lead providers to miss out on significant reimbursements. 

Of course, payers may also deny claims or dispute the claim based on their interpretations of the contract. It is important to specifically target collaboration opportunities to see if there is a compromise.

Revenue Cycle Management Issues

Payment Variance can also arise from revenue cycle management issues like invoicing mistakes. Any error in preparing or sending out invoices can result in underpayments. There may be missing due dates, inaccurate information, and a host of other problems. 

Each payor will likely have certain requirements that you need to meet to process claims. If you fail to do so, you can miss out on full reimbursement. National drug code or indirect medical education adjustment mistakes also lead to underpayments, as can charges related to “lesser of” language in payor contracts.

Administrative Errors

Making claim submissions after a cut-off point is a common administrative error. This can also include trailer billing, which occurs when you bill for services after the initial claim has already been processed. 

Revenue capture, which refers to accurately reporting and billing for all the services you’ve provided, is another potential problem. Failing to document all services will result in underpayments. 

Impact of Underpayments

Even a small percentage of underpayments can accumulate and cause significant damage to your company’s revenue. Identifying underpayments and appealing them is also a time-consuming process that can worsen the financial losses of those underpayments. 

Just one example of how you can miss out on revenue is if you don’t pay attention to “lesser of” language in a contract. “Lesser of” clauses stipulate that the payor will pay the lesser of the charged or contracted amount. In other words, if a service costs $300 and the contracted rate is $350, the payor will reimburse you for only $300.  

The bottom line is that underpayments result in revenue loss, which ends up impacting patients. If you’re unable to make a profit, you can’t reinvest that money in equipment, personnel, and facility improvements to benefit the people you help.

Identifying Underpayments

When you’re looking for how to identify underpayments in healthcare, you want to rely on both tools and warning signs that indicate you’ve not been reimbursed in full.

Tools and Reports

A payment variance report can be an excellent tool. It’s a report produced by a provider’s host system or electronic health record system. It illustrates the discrepancies between expected and received payments, revealing any processing errors, annual escalators, and other crucial data. 

Revenue cycle management systems allow for more efficient payment processing. They give you more accurate means to analyze claims data and can even help reduce the number of denied claims by eliminating errors in filing.

Indicators of Underpayments

One of the main indicators of underpayments is payment discrepancies. If the reimbursements you receive consistently fall short of the rates in the contract you signed, that can mean that you should investigate why this is happening. There is a high likelihood that you do not have up-to-date contracts or that you need to initiate change conversations with your payer. 

If you start observing denial patterns for some services, that also could mean you’re being underpaid, as can deviations in contract terms. Look for inconsistencies in payment. If the payor reimburses you two different amounts for the same service, that’s a red flag.

Strategies for Recovering Underpayments

Healthcare underpayment revenue recovery requires that you rely on a few key strategies.

Systematic Review and Audits

You need to regularly review the contracts you’ve signed with your payers and ensure that they’re up to date. You also want to have audits of billing and coding practices to prevent future issues.

Leveraging Technology

Technology can help you analyze contract management and detect anomalies. They identify services, procedures, and payors that are consistently connected with underpayments.

Staff Training and Expertise

Your staff has to be fully updated on billing and coding practices to help reduce errors that can lead to underpayments. Consider hiring experts in medical underpayment recovery to review the issues and appeal to payors to recover full reimbursement.

Strategies for Recovering Underpayments

One of the most important ways to prevent underpayments in the future is by improving your revenue cycle management processes. Tools like what we offer at River Health make it easier to quickly spot underpayments with auto-payment variance detectors and payor assessments. 

Boosting your communications with payors is also crucial for addressing concerns and contract discrepancies effectively. If there’s contractual language you’re not clear on, it’s important to get answers quickly. 

In recent years, technology has been advancing rapidly. To keep up, you want to stay updated on the tools available to help you improve processes and strategies.

Get Help for Underpayments With Top-of-the-Line Technology 

Payment discrepancies can gut your healthcare business. Whether the problem stems from payor issues, administrative errors, or revenue cycle management concerns, contract management tools can help you address it. 

At Rivet Health, we can point you to quality solutions that you can rely on. Learn more about investing in better underpayment management strategies by downloading our e-book on the hidden costs of contract management.