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CPT Code 71271 | Examination Of The Thorax With LDCT For Lung Cancer Screening

Report CPT 71271 if a provider performed low–dose computed tomography (LDCT) to examine the thorax without using contrast material. 

What Is CPT Code 71271?

CPT code 71271 reports thorax imaging using low–dose computed tomography (LDCT and is used to diagnose lung cancer.

This procedure involves using a strong magnetic field and radio waves to create detailed images of the thoracic region.

The procedure does not involve the injection of contrast material.


The CPT book describes CPT code 71271 as: “Computed tomography, thorax, low dose for lung cancer screening, without contrast material(s).”


When the patient is appropriately positioned, the provider (or a radiologic technologist) instructs the patient to remain motionless during the procedure. Next, the patient is on the scanner bed, which moves slowly into the scanner.

The equipment takes multiple cross–sectional images of the thoracic region. The provider examines these cross–sectional images on a computer monitor.

The provider then interprets the results from the images he obtains. Finally, the provider uses the computer to store, reconstruct and reproduce these images as prints for further evaluation.

The provider performs this procedure for lung cancer screening without injecting contrast material into the patient.

How To Use CPT 71271

For diagnostic CT of the thorax, use CPT 71250 to CPT 71270.

Do not report CPT 71271 in conjunction with CPT 71250, CPT 71260, and CPT 71270.

Use CPT 75571, CPT 75572, CPT 75573, or CPT 75574 for cardiac computed tomography of the heart,

Do not report CPT 71271 for breast CT procedures.


CPT Professional 2022

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