CPT code 74175 denotes computed tomography angiography (CTA) of the abdomen performed with intravenous contrast, including angiographic reconstruction and interpretation; non-contrast images, if obtained, are part of the procedure. This imaging code is central to evaluation of abdominal vascular pathology — including suspected aneurysm, dissection, stenosis, or thrombosis — and is widely used across acute care, outpatient imaging, and preoperative planning. Nationally, CTA of the abdomen is a high-volume diagnostic service with implications for access to advanced imaging, utilization management, and coverage policy.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical intent and common sites of service, a summary of payer coverage considerations and coding context, and benchmarking insights where available. The publication highlights common billing modifiers and service-line considerations, summarizes clinical contexts in which 74175 is typically reported, and notes where input data were not provided. This resource is intended for coding professionals, compliance staff, and policy analysts seeking a focused reference on national use, coding definition, and payer landscape for CPT code 74175.