CPT code 37619 designates surgical ligation of the inferior vena cava to narrow the vessel diameter using sutures or a clip. As an invasive vascular procedure, it is performed in operative settings and can be encountered in both inpatient and outpatient surgical environments depending on patient complexity. Nationally, this code captures discrete surgical management of venous injuries, hemorrhage control, or other indications requiring caval narrowing, and it affects hospital and surgeon billing and coding workflows.

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 context, typical sites of service, and the billing implications of reporting CPT code 37619. The publication outlines available benchmarks where present, common modifier usage patterns from input data, and the clinical scenarios in which this procedure is documented. Where input data is incomplete, the text notes that specific items are not available in the input.

This summary is intended for coding professionals, surgical billing staff, and policy analysts seeking a national-level reference for CPT code 37619, its clinical role, and its place in hospital and professional billing processes.