Insights / RCM

Denial Reasons in Small Practices

GetMax Healthcare · July 11, 2026 · 14 min read

The short version

If you read nothing else on this page.

01

Eligibility verification is critical in preventing denials

02

Coding errors can be prevented by using coding tools and resources

03

Prior authorization is essential in preventing denials

04

Ongoing training and education can help prevent denials

05

Technology can help streamline the process and reduce errors

Most denials in small medical practices are decided before the patient reaches the front desk. In practice, most denials trace back to a handful of causes, including eligibility and coverage issues, missing prior authorization, and coding errors. By addressing these issues at the front desk, practices can significantly reduce their denial rates and improve revenue cycle efficiency.

What are the most common denial reasons in small practices?

Denial rates commonly run 5–10%. The most common denial reasons in small practices include eligibility and coverage issues, missing prior authorization, coding errors, insufficient documentation, and timely-filing-limit misses. For instance, a practice may submit a claim without verifying the patient's eligibility, resulting in a denial with a CO-16 code, which indicates that the claim lacks information. This can be prevented by verifying eligibility at the front desk using online tools or by contacting the payer directly.

Eligibility verification is a critical step in preventing denials. By verifying eligibility, practices can ensure that they are submitting claims for services that are covered by the patient's insurance plan. This can be done by checking the patient's insurance card, contacting the payer, or using online eligibility verification tools. For example, a practice may use a tool like Availity to verify eligibility and receive real-time feedback on any issues that may cause a denial.

How can coding errors be prevented at the front desk?

Coding errors are another common denial reason in small practices. These errors can occur when the wrong code is used or when a modifier is missing. To prevent coding errors, practices can use coding tools and resources, such as the official CARC/RARC code list, to ensure that they are using the correct codes. For instance, a practice may use a coding tool to verify that they are using the correct CPT code for a particular service. Additionally, practices can provide ongoing training to their staff on coding guidelines and updates to ensure that they are using the most up-to-date codes.

Practices can also use technology to help prevent coding errors. For example, they can use electronic health records (EHRs) with built-in coding tools to help ensure that the correct codes are used. They can also use claim scrubbing tools to identify potential coding errors before the claim is submitted.

What role does prior authorization play in preventing denials?

Prior authorization is another critical step in preventing denials. By obtaining prior authorization, practices can ensure that the services they provide are approved by the payer. This can help prevent denials with a CO-197 code, which indicates that the service requires prior authorization. For example, a practice may need to obtain prior authorization for a patient who requires a high-level of care, such as inpatient treatment. By obtaining prior authorization, the practice can ensure that the services are approved and that the claim will not be denied.

Prior authorization can be a time-consuming process, but it is essential in preventing denials. Practices can use online tools or contact the payer directly to obtain prior authorization. They can also use electronic prior authorization tools to streamline the process and reduce the risk of errors.

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Questions, answered

What is the most common denial reason in small practices?+

The most common denial reason in small practices is eligibility and coverage issues. This can be prevented by verifying eligibility at the front desk using online tools or by contacting the payer directly.

How can coding errors be prevented?+

Coding errors can be prevented by using coding tools and resources, such as the official CARC/RARC code list, to ensure that the correct codes are used. Practices can also provide ongoing training to their staff on coding guidelines and updates.

What is the role of prior authorization in preventing denials?+

Prior authorization is essential in preventing denials. By obtaining prior authorization, practices can ensure that the services they provide are approved by the payer, which can help prevent denials with a CO-197 code.

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