Summary & Overview
CPT 78445: Angiography/Venography for Diagnostic Vascular Imaging
CPT code 78445 is a diagnostic vascular imaging procedure using angiography or venography to visualize blood flow and detect vessel narrowing or other vascular disease. Nationally, this code represents an important diagnostic tool in cardiovascular and interventional radiology, supporting treatment planning for ischemic disease, stenosis, thrombosis, and pre-/post-intervention assessment. Use of this code influences utilization, imaging capacity, and reimbursement patterns across hospital and outpatient imaging settings.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, common settings where the procedure is performed, and typical modifiers used with the service. The publication summarizes national benchmarks for utilization and payment where available, highlights relevant policy updates affecting imaging services, and situates the procedure within broader vascular diagnostic workflows.
The report is aimed at billing managers, radiology administrators, and policy analysts who need clear guidance on coding context, payer coverage considerations, and the operational implications of vascular angiography/venography services. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 78445 describes a diagnostic imaging procedure that obtains images of blood flow through vessels using angiography or venography. The intent of the procedure is to identify vessel narrowing or vascular disease by visualizing arterial or venous circulation.
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Service type: Diagnostic vascular imaging (angiography/venography)
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Typical site of service: Hospital radiology department or outpatient imaging center where angiographic or venographic studies are performed
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with a history of peripheral arterial disease and progressive left calf claudication is referred for diagnostic vascular imaging to evaluate suspected arterial stenosis. The interventional radiology team schedules an outpatient angiographic study to visualize arterial blood flow in the lower extremity and identify focal narrowing or occlusion. The patient arrives fasting, consents to intravascular contrast administration, and is prepped in a vascular procedure suite. Under local anesthesia with conscious sedation, arterial access is obtained (commonly via the common femoral artery). Digital subtraction angiography is performed with selective catheterization and contrast injections to image vessel segments and collateral circulation. Images are reviewed in real time by the physician to determine degree and location of stenosis; images are archived for the medical record. If a significant lesion is identified, a subsequent therapeutic procedure (such as balloon angioplasty or stent placement) may be planned during the same visit or scheduled separately.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when reporting only the physician interpretation/reading of the angiographic images separate from technical services. |
TC |