Coding Ahead
CasePilot
Medical Coding Assistant
Case2Code
Search and Code Lookup Tool
RedactPHI
HIPAA-Compliant PHI Redaction
DetectICD10CM
ICD-10-CM Code Detection
Log in Register free account
1 code page views remaining. Guest accounts are limited to 1 page view. Register free account to get 5 more views.
Log in Register free account
Code deleted, see 75571-75574

Official Description

Computed tomography, heart, with contrast material(s), including noncontrast images, if performed, cardiac gating and 3D image postprocessing; computed tomographic angiography of coronary arteries (including native and anomalous coronary arteries, coronary bypass grafts), without quantitative evaluation of coronary calcium

© Copyright 2025 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 0146T refers to a specialized imaging procedure known as computed tomography (CT) of the heart, which utilizes contrast material to enhance the visualization of cardiac structures. This procedure includes the acquisition of both contrast and non-contrast images, if performed, and incorporates cardiac gating techniques to synchronize image capture with the heart's rhythm. The result is a detailed three-dimensional (3D) reconstruction of the heart, allowing for comprehensive assessment of the coronary arteries, including both native and anomalous vessels, as well as any coronary bypass grafts present. Unlike other codes that may involve quantitative evaluation of coronary calcium, such as CPT® Code 0147T, this specific code does not include such evaluations. The primary focus of CPT® Code 0146T is on the imaging aspects, which are crucial for diagnosing conditions related to coronary artery disease and assessing the overall cardiac anatomy. The use of cardiac gating is particularly important in this context, as it mitigates the effects of cardiac motion, resulting in clearer images that are essential for accurate diagnosis and treatment planning.

© Copyright 2025 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 0146T is indicated for various clinical scenarios where detailed imaging of the heart and coronary arteries is necessary. The following conditions may warrant the use of this imaging technique:

  • Coronary Artery Disease - Patients with suspected or known coronary artery disease may require this imaging to evaluate the condition of their coronary arteries.
  • Assessment of Coronary Arteries - This procedure is indicated for assessing both native and anomalous coronary arteries, as well as any existing coronary bypass grafts.
  • Preoperative Evaluation - Prior to surgical interventions such as bypass surgery or angioplasty, this imaging can provide critical information regarding the coronary anatomy.
  • Evaluation of Chest Pain - Patients presenting with unexplained chest pain may undergo this procedure to rule out significant coronary artery obstruction.

2. Procedure

The procedure for CPT® Code 0146T involves several key steps to ensure accurate imaging of the heart and coronary arteries. The following outlines the procedural steps:

  • Preparation of the Patient - The patient is prepared for the CT scan, which may include fasting for a specified period and ensuring that any necessary contrast material is available. The patient's medical history is reviewed to identify any contraindications to the use of contrast agents.
  • Administration of Contrast Material - If indicated, contrast material is injected intravenously to enhance the visibility of the coronary arteries during imaging. This step is crucial for obtaining clear images of the vascular structures.
  • Cardiac Gating - The CT scanner employs cardiac gating techniques, which involve synchronizing the imaging process with the cardiac cycle. The scanner remains inactive during the heart's motion and activates during brief periods of rest, capturing high-resolution images while minimizing radiation exposure.
  • Image Acquisition - A series of two-dimensional images are taken from multiple angles around the heart. These images are then processed by a computer to create a detailed three-dimensional representation of the heart and coronary arteries.
  • Post-Processing - After the images are acquired, 3D image postprocessing is performed to enhance the visualization of the coronary arteries and any anomalies present. This step allows for a comprehensive evaluation of the coronary anatomy.

3. Post-Procedure

After the completion of the procedure associated with CPT® Code 0146T, patients may be monitored for any immediate reactions to the contrast material. It is essential to assess the patient for any signs of allergic reactions or complications. The results of the imaging study will be interpreted by a qualified radiologist or cardiologist, who will provide a detailed report outlining the findings. Patients may be advised on follow-up care based on the results, which could include further diagnostic testing or treatment options if significant coronary artery disease is identified. Recovery from the procedure is typically quick, and patients can usually resume normal activities shortly after the imaging is completed, barring any specific instructions from their healthcare provider.

Short Descr CCTA W/WO DYE
Medium Descr CCTA W/WO DYE
Long Descr CT HRT CTA W/O QUAN EVAL CALCIUM
APC Status Indicator Significant Procedure, Not Discounted When Multiple
Type of Service (TOS) 4 - Diagnostic Radiology
Berenson-Eggers TOS (BETOS) none
MUE Not applicable/unspecified.
CCS Clinical Classification 180 - Other CT scan
Date
Action
Notes
2010-01-01 Deleted Code deleted, see 75571-75574
2008-01-01 Changed Code description changed.
2007-01-01 Added Code added.
Code
Description
CasePilot

Get instant expert-level medical coding assistance.

Ask about:
CPT Codes Guidelines Modifiers Crosswalks NCCI Edits Compliance Medicare Coverage
Example: "What is CPT code 99213?" or "Guidelines for E/M services"