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CPT®
75665

CPT® Code 75665
Deleted

Code deleted, see 36223, 36224

Official Description

Angiography, carotid, cerebral, unilateral, radiological supervision and interpretation

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 75665 refers to an angiography of the carotid arteries in the cerebral region, specifically performed unilaterally. In this context, 'angiography' is a diagnostic imaging technique that involves the use of a catheter to visualize the blood vessels. The physician begins by inserting a catheter into one of the carotid arteries, which are major blood vessels located on either side of the neck that supply blood to the brain. Once the catheter is in place, a contrast dye is injected into the artery. This dye enhances the visibility of the blood vessels on X-ray images. As the dye circulates through the artery, the physician captures a series of X-ray images, allowing for detailed examination of the arterial structure and any potential abnormalities. This procedure is crucial for diagnosing conditions such as blockages, aneurysms, or other vascular issues affecting cerebral circulation.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The angiography procedure described by CPT® Code 75665 is indicated for various clinical scenarios where visualization of the carotid arteries is necessary. The following conditions may warrant this procedure:

  • Suspected Carotid Artery Stenosis - This condition involves narrowing of the carotid arteries, which can lead to reduced blood flow to the brain and increase the risk of stroke.
  • Evaluation of Carotid Artery Aneurysms - An aneurysm is a bulge in the artery wall that can pose a risk of rupture; angiography helps in assessing its size and location.
  • Assessment of Vascular Malformations - This includes conditions such as arteriovenous malformations (AVMs) that can disrupt normal blood flow.
  • Preoperative Planning - Angiography may be performed prior to surgical interventions to provide detailed anatomical information about the carotid arteries.

2. Procedure

The angiography procedure involves several critical steps to ensure accurate imaging of the carotid arteries. The following outlines the procedural steps:

  • Step 1: Catheter Insertion - The physician begins by preparing the patient and administering local anesthesia at the catheter insertion site, typically in the groin or wrist. A small incision is made to access the femoral or radial artery, and a catheter is carefully threaded through the vascular system to reach the carotid artery on the targeted side of the head.
  • Step 2: Contrast Dye Injection - Once the catheter is positioned correctly within the carotid artery, a contrast dye is injected through the catheter. This dye is essential for enhancing the visibility of the blood vessels during imaging.
  • Step 3: Imaging Acquisition - As the contrast dye flows through the artery, the physician captures a series of X-ray images. These images are taken at various angles to provide a comprehensive view of the arterial structure and any potential abnormalities.
  • Step 4: Catheter Removal - After the imaging is complete, the catheter is carefully removed from the artery. Pressure is applied to the insertion site to prevent bleeding, and a bandage is applied to protect the area.

3. Post-Procedure

Following the angiography procedure, patients are typically monitored for a short period to ensure there are no immediate complications, such as bleeding or allergic reactions to the contrast dye. It is common for patients to experience some bruising or discomfort at the catheter insertion site. Instructions for post-procedure care may include avoiding strenuous activities for a specified duration and monitoring for any unusual symptoms, such as swelling or increased pain at the site. Follow-up appointments may be scheduled to discuss the results of the angiography and any further treatment options if necessary.
Short Descr ARTERY X-RAYS HEAD & NECK
Medium Descr ANGIOGRAPHY CAROTID CEREBRAL UNILATERAL RS&I
Long Descr Angiography, carotid, cerebral, unilateral, radiological supervision and interpretation
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 1 - Diagnostic Tests for Radiology Services
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Discontinued Code
Type of Service (TOS) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) none
MUE Not applicable/unspecified.
CCS Clinical Classification 188 - Cerebral arteriogram
Date
Action
Notes
2013-01-01 Deleted Code deleted, see 36223, 36224
2011-01-01 Changed Short description changed.
Pre-1990 Added Code added.
Code
Description
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