Summary & Overview
CPT 34833: Iliac Artery Conduit for Endovascular Prosthesis or Bypass
CPT code 34833 captures an intraoperative incision in the abdomen or retroperitoneum to access the iliac artery and construct a conduit for endovascular prosthesis placement or for cardiopulmonary bypass during a separate primary procedure. The code is significant nationally because it documents an additional complex vascular access step performed contemporaneously with another operative service and must be reported only with the primary procedure code. Proper use affects surgical documentation, claims submission, and clinical coding accuracy across hospitals and surgical centers.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context for CPT code 34833, guidance on typical sites of service and service type, and a synthesis of payer coverage considerations and common modifier usage where available. The publication outlines implications for operative documentation and coding workflows, summarizes common billing scenarios, and highlights areas where policy updates or payer-specific adjudication practices may affect claim acceptance. Data not available in the input will be explicitly noted where relevant.
Billing Code Overview
CPT code 34833 describes an intraoperative abdominal or retroperitoneal incision to expose the iliac artery and create a conduit for placement of an endovascular prosthesis or for cardiopulmonary bypass, performed while another primary procedure is underway. This service is reported only in conjunction with the code for the primary procedure and is not billable as a standalone service.
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Service type: Intraoperative vascular access/conduit creation during a primary surgical procedure
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Typical site of service: Operating room during vascular, endovascular, or cardiothoracic procedures
Clinical & Coding Specifications
Clinical Context
A 72-year-old male with symptomatic infrarenal abdominal aortic aneurysm and hostile iliac access is undergoing endovascular aneurysm repair (EVAR). During the primary endovascular procedure, the vascular surgeon makes an abdominal or retroperitoneal incision to expose the common iliac artery and creates a surgical conduit to facilitate delivery of the endovascular prosthesis. The workflow includes general anesthesia, exposure of the iliac artery, creation of an arterial conduit (end-to-side or end-to-end graft or direct cannulation with conduit), passage and deployment of the endograft through the conduit, verification of graft position with intraoperative imaging, removal of the conduit, and closure of the incision.
Typical site of service: Hospital operating room or inpatient surgical suite for complex EVAR or when cardiopulmonary bypass conduit is required.
Service type: Intraoperative vascular access/conduit creation performed concurrently with a primary endovascular or cardiothoracic procedure.
Typical patient scenario: Elderly patient with large aortic aneurysm or difficult iliac anatomy where standard percutaneous access is inadequate; provider elects to create a surgical iliac conduit to enable safe passage of the endovascular devices. The procedure is reported in conjunction with the code for the primary EVAR or cardiopulmonary bypass procedure; 34833 is not billed as a standalone code.
Coding Specifications
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