CPT code 75898 denotes a follow-up angiographic study using an existing indwelling catheter placed during prior therapy, embolization, or infusion, excluding thrombolytic procedures. This code captures diagnostic vascular imaging performed through a catheter already in place and is relevant for post-procedural assessment, monitoring of embolization or infusion therapy, and evaluating vessel patency. Nationally, accurate use of 75898 affects documentation, clinical continuity, and appropriate billing for catheter-based follow-up imaging.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a focused overview of the clinical context for using this code, common billing considerations, and typical sites of service where the procedure occurs. The publication outlines benchmarking and reimbursement context where available, clarifies service classification for coding compliance, and summarizes policy or payer notes relevant to outpatient interventional radiology and hospital-based follow-up angiography.

This resource is designed for coders, billing managers, and clinicians who need concise guidance on when CPT code 75898 applies, how it is used in clinical workflow, and what to consider for payer submission and documentation in a national context.