2025 CPT code 75635
(Active) Effective Date: N/A Revision Date: N/A Diagnostic Radiology - Computed Tomographic Angiography Diagnostic Radiology (Diagnostic Imaging) Procedures of the Aorta and Arteries Feed
Computed tomographic angiography (CTA) of the abdominal aorta and both iliofemoral arteries in the lower extremities, with contrast material, including noncontrast images if performed, and image post-processing.
Modifiers 26 (professional component) and TC (technical component) may be appended as appropriate, depending on payer rules and whether the services are performed by a physician or facility.
Medical necessity is established by the presence of clinical symptoms or findings suggestive of vascular disease in the abdominal aorta and/or lower extremities, such as claudication, rest pain, or evidence of an aneurysm on other imaging.
A radiologist or other qualified physician administers the contrast material, performs the CTA scan, interprets the images, and generates a report.
- Diagnostic Radiology (Diagnostic Imaging) Procedures of the Aorta and Arteries
- Diagnostic Radiology (Diagnostic Imaging) Procedures of the Aorta and Arteries
In simple words: This test uses a special dye and a CT scanner to take detailed pictures of the major arteries in your abdomen and legs to check for blockages or narrowing.
This procedure involves the intravenous administration of contrast material followed by computed tomographic angiography (CTA) imaging of the abdominal aorta and bilateral iliofemoral arteries extending into the lower extremities.Non-contrast images may be acquired and are included in the code.Image post-processing is also incorporated.This comprehensive study visualizes the vascular structures to assess for pathologies such as stenosis, occlusion, or aneurysms.
Example 1: A patient presents with intermittent claudication (leg pain with exertion) and suspected peripheral arterial disease.A CTA (75635) is ordered to assess the patency of the iliofemoral arteries., A patient with a history of abdominal aortic aneurysm undergoes a follow-up CTA (75635) to monitor aneurysm size and assess for any changes., A patient presents to the emergency department with acute limb ischemia.A CTA (75635) is performed to rapidly identify the location and extent of the arterial occlusion to guide treatment.
* Physician order specifying the indication for the CTA.* Detailed clinical history and physical examination findings.* Imaging report with detailed description of findings and measurements.
** This code encompasses a comprehensive CTA study of the abdominal aorta and bilateral iliofemoral arteries.The inclusion of non-contrast images and image post-processing is integral to the code and should not be billed separately.Always check with individual payers for specific coverage and billing policies.
- Revenue Code: I2B (ADVANCED IMAGING - CAT: OTHER)
- RVU: Information not available in provided sources. Refer to CMS guidelines and local payer policies for RVU values.
- Global Days : Not applicable.
- Payment Status: Active
- Modifier TC rule: Modifier TC may apply if only the technical component of the service is performed.Payer-specific rules may apply.
- Fee Schedule : Information not available in provided sources. Refer to historical CMS fee schedules and local payer data.
- Specialties:Vascular Surgery, Radiology, Interventional Radiology
- Place of Service:Inpatient Hospital, Outpatient Hospital, Ambulatory Surgical Center