Summary & Overview
CPT 0175T: Computer-Aided Detection for Chest Radiographs
CPT code 0175T covers computer-aided detection (CAD) performed by specially designed software to identify potential abnormalities on chest radiographs. The code applies when a provider uses software to assist in detecting findings on chest X‑rays; the same provider may not perform both the CAD and the initial radiograph interpretation. Nationally, CAD for chest radiography is relevant as imaging volumes and AI-assisted tools expand, affecting clinical workflows and billing practices.
Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical function of the code, the typical sites where the service is delivered, and the significance of distinguishing CAD from primary radiology interpretation. The publication summarizes available benchmarks and payer coverage patterns where provided, highlights clinical context for use of CAD on chest radiographs, and outlines common billing considerations such as allowable service lines and applicable modifiers when present.
This national summary is intended for health policy professionals, coding staff, radiology administrators, and payers seeking a clear, practical description of the code, its clinical role, and the payer landscape. Data not available in the input are noted where applicable.
Billing Code Overview
CPT code 0175T describes the use of specially designed computer software by a qualified provider to identify potential abnormalities on chest radiographs. The service represents a computer-aided detection (CAD) application that analyzes chest X‑ray images to flag findings that may warrant further clinical review.
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Service type: Computer-aided detection (CAD) for chest radiography
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Typical site of service: Outpatient radiology or imaging centers and hospital radiology departments where chest radiographs are performed and interpreted
Clinical & Coding Specifications
Clinical Context
A 62-year-old male with a 40-pack-year smoking history presents to the outpatient radiology clinic after a primary care physician ordered a routine chest radiograph for evaluation of persistent cough and mild dyspnea. The facility performs a standard posterior-anterior and lateral chest X-ray. A separate radiologist performs the initial interpretation. A second provider uses specialized computer-aided detection (CAD) software to analyze the chest radiograph images for potential pulmonary nodules or other radiographic abnormalities. The CAD review is documented separately from the interpreting radiologist’s report and may be billed when the CAD analysis is performed by a different provider than the initial image interpreter. The workflow includes image acquisition by radiologic technologist, primary reading by the interpreting radiologist, and secondary CAD analysis with a discrete report, with results used to guide follow-up imaging, pulmonology referral, or surgical consultation as clinically indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When billing only the professional interpretation component and the facility bills the technical component separately. |
TC |