What is the CPT Code for a CT Head Scan Without Contrast?

Medical billing and coding can often feel overwhelming, especially when it comes to radiology. One of the most commonly ordered imaging studies is a CT scan of the head without contrast. This procedure is crucial in diagnosing urgent conditions like strokes, head injuries, or unexplained neurological symptoms. To ensure proper billing and reimbursement, it’s important to know the correct CPT code.

The Correct CPT Code

The CPT code for a CT head scan without contrast is 70450.
This code describes a computed tomography (CT) scan of the head performed without the use of contrast material.

Doctors usually order this test for:

• Evaluating head trauma
• Detecting stroke or bleeding in the brain
• Investigating seizures or dizziness
• Assessing sudden, severe headaches
• Monitoring neurological disorders

Because it is widely used in both emergency and outpatient settings, CPT 70450 is one of the most frequently billed codes in radiology.

Why Coding Accuracy Matters

A small coding error can result in claim denials, delayed payments, or compliance risks. For radiology practices, ensuring accurate billing is essential for financial stability and smoother workflows. Our detailed guide on understanding radiology billing codes highlights how precision in coding reduces errors and improves revenue cycle management.

Radiology Billing and Compliance

Billing for imaging services goes beyond entering a code  it requires accurate documentation, payer-specific guidelines, and compliance checks. Partnering with experts in radiology billing ensures that providers maximize reimbursements while staying compliant with changing regulations.

Choosing the Right CPT Code

In some cases, a CT scan may be performed with and without contrast in the same session. Each scenario has a different CPT code, which can be confusing. To avoid costly mistakes, it’s important to understand how to select the correct one. Our resource on how to choose the correct CPT code for a radiology procedure offers practical guidance for coders and billing teams.

For the most official and up-to-date information, coders and providers should consult the AMA CPT® Code Lookup Tool, which is the gold standard for medical coding references.

Final Thoughts

The CPT code 70450 is the correct billing code for a CT head scan without contrast. Using this code properly not only ensures accurate claim submission but also reduces the risk of denials and compliance issues. By staying informed and working with billing experts, providers can focus on patient care while maintaining a healthy revenue cycle.