CPT code 37200 represents a transcatheter biopsy of the inner wall of a blood vessel performed by inserting a catheter to obtain tissue for laboratory diagnosis. This interventional vascular procedure is used to evaluate intravascular pathology when percutaneous or surgical biopsy approaches are not feasible. Nationally, accurate coding for these procedures affects claims adjudication, clinical documentation, and comparative utilization tracking for interventional radiology and vascular specialty services.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides a concise overview of clinical context, typical sites of service, and common billing practices associated with CPT code 37200.

Readers will learn the clinical intent of the procedure, where it is typically performed, and the kinds of benchmarks and policy considerations that matter for payers and providers. The report outlines how CPT code 37200 fits into interventional vascular service lines, summarizes common billing modifiers and claims components (listed separately), and flags areas where coding clarity and documentation are important for accurate reimbursement and quality reporting. Data not available in the input is noted where applicable.