Summary & Overview
CPT 70498: CT Angiography of Neck with Peripheral IV Contrast
CPT code 70498 identifies CT angiography of the neck with peripheral intravenous contrast administration, including noncontrast images if obtained and image post–processing. This procedure is a key diagnostic tool for evaluating vascular anatomy and pathology in the cervical region, including stenosis, dissection, aneurysm, and preoperative vascular mapping. Nationally, CT angiography of the neck is widely used in emergency and outpatient settings and carries implications for imaging utilization, radiology workflow, and payer coverage policies.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find: benchmark information on procedure utilization and common payer coverage considerations; an overview of clinical context and typical sites of service; and operational notes relevant to documentation and coding practice. The content situates CPT code 70498 within broader imaging services, clarifies what the code represents, and highlights factors that influence clinical use and payer interactions at a national level. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 70498 describes a computed tomographic (CT) angiographic study of the neck in which contrast material is injected into a peripheral vein and the blood vessels of the neck are imaged. Noncontrast images, if performed, and image post–processing are included in the procedure as described.
-
Service type: Diagnostic imaging procedure — CT angiography of the neck.
-
Typical site of service: Hospital outpatient radiology department, outpatient imaging center, or freestanding CT facility.
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient presents to the emergency department with sudden-onset right-sided weakness and slurred speech. The emergency physician orders an urgent contrast-enhanced CT angiography of the neck to evaluate the extracranial carotid and vertebral arteries for significant stenosis, occlusion, or dissection as part of an acute stroke workup. The patient is transported to the radiology CT suite. A certified radiologic technologist positions the patient, places an intravenous peripheral catheter, and programs a CT angiography protocol. The ordering provider verifies renal function and allergies; contrast is injected per protocol while the CT technologist acquires arterial-phase images of the neck. Noncontrast images (if obtained for comparison) and post-processing including multiplanar reconstructions and 3D angiographic reformats are generated. The interpreting radiologist reviews the images, documents findings (for example, high-grade right internal carotid artery stenosis), and issues an urgent report to the stroke team. Billing is submitted for 70498 to represent CT angiography of the neck with peripheral IV contrast and included post-processing and any noncontrast images performed.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When billing separately for the interpreting radiologist's professional services if the technical component is billed by another entity |