What Is the CPT Code for a Rapid Strep Test?

In the complex world of medical billing and coding, having the correct CPT code is crucial for accurate claims processing, reimbursement, and reducing denials. One question that frequently arises among clinicians, billing teams, and revenue cycle professionals is: What is the CPT code for a rapid strep test?

Below, we break down what a rapid strep test is, which CPT codes apply, and how to ensure proper billing. Plus, we’ll show how EZ Settle Solutions can help with coding accuracy and claim management.

What Is a Rapid Strep Test?

A rapid strep test (also called rapid antigen detection test, or RADT) is a point-of-care diagnostic test used to detect Group A Streptococcus bacteria in throat swabs. It produces results in minutes, helping clinicians decide whether antibiotic therapy is necessary.

Because it’s done in an outpatient or office setting and is fairly routine, the test has standardized CPT coding guidelines.

CPT Codes for Rapid Strep Tests

In general, these are the relevant CPT codes you might use:

• 87880 – Infectious agent antigen detection by immunoassay technique, direct (e.g., throat swab), qualitative or semiquantitative, multiple step method; Streptococcus, group A
• G0005 – Special processing (e.g., Streptococcus, group A), performed in a physician office, when performed as part of a screening test (e.g., screening for streptococcal infection prior to a throat culture)

Key points to watch out for:

• If a throat culture is done (as a confirmation after a negative rapid test), a different code (e.g., 87070 for culture) may apply.
• Always check whether the payer requires “bundling” or considers the rapid test as part of a panel.
• Verify the payer’s local coverage determination (LCD) or medical policy, which might disallow separate payment for G0005 if the test is routine in that setting.

Why Correct CPT Coding Matters

Using the wrong code or omitting required modifiers can lead to claim denials, delayed reimbursement, or even audits. That’s where a professional partner can make a difference.

At EZ Settle Solutions, we specialize in:

• End-to-end medical billing and coding services to reduce errors and denials
• Revenue cycle management tailored to your practice’s needs
• Ongoing denial management and compliance support

How EZ Settle Ensures CPT Accuracy

Here’s how we help you get coding right:

1. Expert coders review each test and clinical documentation.
2. Payer policy checks ensure that the code is reimbursable and compliant.
3. Denial management: If a rapid strep claim is denied, we analyze the error and resubmit properly.
4. Reporting & analytics: We help you track which codes are most problematic and address root causes.

For more details on CPT coding guidelines from an authoritative source, consult the American Medical Association (AMA). Their official resources provide guidance on antigen detection tests like the rapid strep. AMA CPT® Coding Guidelines

Final Thoughts

If you’re ever unsure about which CPT code to use for a rapid strep test—or any diagnostic procedure—don’t guess. Incorrect coding can cost time and money.

Let EZ Settle Solutions handle the complexity. Whether it’s coding, claims, denials, or audit support, we’ve got you covered. Contact us today to streamline your revenue cycle and improve your coding accuracy.