Summary & Overview
CPT 0174T: Computer-Assisted Detection for Chest Radiographs
CPT code 0174T describes the use of specialized computer software by a provider to identify potential abnormalities on chest radiographs, performed at the same site and time as the initial X‑ray interpretation. This code captures adjunctive diagnostic support technology used in radiology workflows and matters nationally as imaging AI and software-assisted interpretation become more common across clinical settings.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of how the service is classified, typical sites of service, and the clinical context for applying software-assisted detection during initial chest X‑ray readings. The publication also outlines common modifiers associated with imaging services and highlights where data were not available in the input.
The report is intended to inform billing staff, radiology providers, and policy analysts about the clinical nature of this code, typical operational settings, and the national payer landscape. Benchmarks, reimbursement policy updates, and payer-specific coverage notes are addressed where available. Data not available in the input are clearly indicated in the relevant sections of the full publication.
Billing Code Overview
CPT code 0174T describes a service in which the provider uses specially designed computer software to identify potential abnormalities within chest radiographs. The software is applied at the same site and time as the provider's initial chest X‑ray interpretation.
-
Service type: Computer-assisted detection/diagnostic support applied during initial chest radiograph interpretation
-
Typical site of service: Radiology or outpatient imaging center at the time and location of the initial X‑ray interpretation
Clinical & Coding Specifications
Clinical Context
A 58-year-old male smoker presents to the emergency department with acute onset shortness of breath and pleuritic chest discomfort. The treating emergency physician orders a two-view chest radiograph. The radiologist performs a standard interpretation and, at the same site and time as that initial read, uses specialized computer-aided detection software to identify potential pulmonary nodules, focal consolidations, or other abnormalities on the radiographs. The software highlights suspicious areas and generates a report that the interpreting physician reviews, documents, and incorporates into the final interpretation during the same encounter. The process occurs in the radiology reading room or on-site PACS workstation and is billed in conjunction with the chest X-ray interpretation.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the interpreting physician's professional component separate from the technical component. |
TC | Technical component | Use when billing only the technical component of the imaging study (equipment and technologist services). |