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CPT 34709: Extension Prosthesis (Tube Graft) for Infrarenal Aortic/Iliac Repair

CPT code 34709 denotes an add-on endovascular procedure used when an extension prosthesis (tube graft) is placed to repair an infrarenal abdominal aortic or iliac vessel during a primary vascular operation. This code captures the technical and procedural steps specific to extension graft placement, including catheterization, device selection, and any angioplasty, stenting, or radiological supervision and interpretation performed as part of the service. As an add-on code, 34709 is reported in addition to the primary vascular procedure code and is important for accurately reflecting the complexity and resource use of combined endovascular repairs.

Key payers addressed in this national overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context for using the code, the typical sites of service, and the service type. The publication provides benchmarking and coverage context where available, summarizes common modifiers used with this procedure, and outlines implications for coding and claims submission integrity. This material is intended to help billing, clinical, and policy stakeholders understand when CPT code 34709 is applicable and what elements of the intervention it is intended to represent. Data not available in the input is noted where relevant.

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Billing Code Overview

CPT code 34709 is an add-on endovascular device placement code used when a provider places an extension prosthesis (tube graft) to repair an infrarenal abdominal aortic or iliac vessel during the performance of a primary vascular procedure. The reported service covers the steps required for placement of the extension graft, including nonselective catheterization, angioplasty or stenting when performed, device selection, and radiological supervision and interpretation when performed.

Service type: Endovascular vascular repair — extension prosthesis (tube graft) placement as an add-on to a primary vascular procedure

Typical site of service: Hospital inpatient or hospital outpatient interventional radiology/vascular surgery suite

Data not available in the input.

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CPT 34709: Extension Prosthesis (Tube Graft) for Infrarenal Aortic/Iliac Repair

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Billing Code Overview

Service type: Endovascular vascular repair — extension prosthesis (tube graft) placement as an add-on to a primary vascular procedure

Typical site of service: Hospital inpatient or hospital outpatient interventional radiology/vascular surgery suite

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A 72-year-old male with a history of peripheral arterial disease and an infrarenal abdominal aortic aneurysm (AAA) is scheduled for endovascular aneurysm repair (EVAR). During the primary EVAR procedure, the vascular surgeon deploys a modular endograft to exclude the aneurysm. One iliac limb requires extension with a tube graft (extension prosthesis) to obtain an adequate distal seal into the common iliac artery. The procedure includes nonselective catheterization, angioplasty of the iliac segment as needed, selection and placement of the extension tube graft, and intraoperative fluoroscopic imaging with radiological supervision and interpretation. Typical workflow: preoperative imaging review (CT angiography), informed consent, general or regional anesthesia, vascular access (femoral), angiography to map anatomy (nonselective catheterization), device selection and preparation, deployment of the primary endograft followed by placement of the extension prosthesis to the treated vessel, completion angiography, hemostasis, and post-anesthesia recovery. Typical site of service: hospital operating room or ambulatory surgery center with endovascular capabilities. Service type: endovascular vascular surgery (add-on device placement). Typical patient scenario: elderly patient with aneurysmal disease or iliac artery disease requiring intraoperative extension graft placement to achieve seal or length during EVAR.

Coding Specifications

Modifier	Description	When to Use
`11`	Normally the post-operative status of the service	Use when this procedure is the usual, clearly defined post-operative course or global period applies and no unusual circumstances.
`22`	Increased procedural services	Use when work required is substantially greater than typically required (extensive adhesiolysis, difficult anatomy, prolonged time).
`23`	Unusual anesthesia	Use when general anesthesia is medically contraindicated but performed due to unusual circumstances (rarely applied to EVAR extensions).
`50`	Bilateral procedure	Use if identical extension prostheses are placed on both right and left iliac systems in the same session.
`52`	Reduced services	Use when the extension prosthesis placement is partially reduced or not completed as originally planned.
`59`	Distinct procedural service	Use to indicate a separate and distinct service when needed to report coexisting procedural codes correctly.
`62`	Two surgeons	Use when two surgeons work together as primary surgeons performing distinct portions of the procedure.
`78`	Return to the OR for related procedure during global period	Use if the patient returns to the operating room for a related procedure during the global period.
`80`	Assistant surgeon	Use when an assistant surgeon provides surgical assistance.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery	Use when a qualified assistant at surgery from the advanced practice clinician group participates.
`LT`	Left side	Use to indicate the left-sided vessel was treated when lateral specification is required.
`RT`	Right side	Use to indicate the right-sided vessel was treated when lateral specification is required.
`62`	Two surgeons	Use when two surgeons work together as primary surgeons performing distinct portions of the procedure.
`63`	Procedure performed on infants less than 4 kg	Typically not applicable; included only when patient weight criteria are met.
`73`	Discontinued outpatient procedure prior to anesthesia administration	Use if the extension placement was planned but canceled prior to anesthesia.

Taxonomy Code	Specialty	Notes
207P00000X	Vascular Surgery	Primary specialty performing EVAR and extension prosthesis placement.
207K00000X	Cardiothoracic/Vascular Surgery	Surgeons with combined training who perform complex aortic interventions.
208100000X	Interventional Radiology	Performs endovascular imaging guidance, device selection, and radiological interpretation.
363LA2200X	Interventional Cardiology	May participate in peripheral endovascular procedures in some centers.
2080S0127X	Surgical Critical Care (Vascular-oriented)	Involved in perioperative management for high-risk patients.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I71.4`	Abdominal aortic aneurysm, without rupture	Primary indication for endovascular aneurysm repair (EVAR); extension prosthesis may be placed to secure distal seal into iliac artery.
`I71.3`	Thoracoabdominal aortic aneurysm, without rupture	When aneurysm extends toward infrarenal/iliac segments requiring complex grafting and extensions.
`I70.2`	Atherosclerosis of native arteries of the extremities	Iliac artery disease may require iliac extension grafting or adjunctive stenting during EVAR.
`I77.1`	Stricture of artery	Vascular stenosis of iliac segment necessitating extension or adjunct procedures for adequate flow/seal.
`I72.9`	Arterial aneurysm, unspecified	Non-specific arterial aneurysms in pelvic/iliac segments that may be managed with endovascular grafting and extensions.
`Z95.2`	Presence of aorto-iliac bypass graft	Prior grafts can complicate anatomy and require extension prosthesis during re-intervention or secondary procedures.
`T82.8`	Other complications of cardiac and vascular prosthetic devices, implants and grafts	Used when complications of prior grafts require placement of an extension prosthesis during corrective EVAR.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`34701`	Repair of infrarenal abdominal aorta and/or iliac vessel with endovascular prosthesis, primary endograft placement (first graft)	Performed immediately before `34709`; `34709` is reported as an add-on for each extension prosthesis placed to the treated vessel during the primary procedure.
`37236`	Transcatheter placement of an intravascular stent(s), peripheral artery, with angioplasty when performed; initial vessel	May be performed for adjunctive iliac angioplasty or stenting during EVAR when needed for access or seal.
`36215`	Selective catheter placement, arterial system; each first order thoracic, abdominal, or pelvic branch vessel, within a vascular family	Used for selective catheterization if selective angiography beyond nonselective imaging is performed during the procedure.
`75894`	Endovascular therapeutic interventions, radiological supervision and interpretation; for abdominal aorta and/or iliac arteries	Billed for complex radiological supervision/interpretation components when separate reporting is appropriate alongside endovascular interventions.
`34802`	Endovascular repair using fenestrated or branched endograft, infrarenal to iliac, complex (example code category)	May represent more complex primary aortic endograft procedures that could necessitate additional extensions (`34709`) for limb seal or fixation.

CPT 34701: Infrarenal Aorto–Aortic Tube Endograft Placement

CPT-34702-AORTO-AORTIC-TUBE-ENDOGRAFT-RUPTURED-INFRARENAL-AORTA

CPT 34702: Aorto–Aortic Tube Endograft for Ruptured Infrarenal Aorta

CPT-34703-AORTO-UNI-ILIAC-ENDOGRAFT-PLACEMENT

CPT 34703: Aorto–Uni–Iliac Endograft Placement for Infrarenal Aortic or Iliac Repair

CPT-34704-AORTO-UNI-ILIAC-ENDOGRAFT-REPAIR-INFRARENAL-ILIAC

CPT 34704: Aorto–Uni–Iliac Endograft Repair of Infrarenal Aorta or Iliac Artery

CPT-34705-AORTO-BI-ILIAC-ENDOGRAFT-PLACEMENT-INFRARENAL-REPAIR

CPT 34705: Aorto–bi–iliac Endograft Placement for Infrarenal Aortic Repair

CPT-34706-AORTO-BI-ILIAC-ENDOGRAFT-FOR-RUPTURED-INFRARENAL-AORTA

CPT 34706: Aorto‑bi‑iliac Endograft Placement for Ruptured Infrarenal Aorta

CPT-34707-ILIO-ILIAC-ENDOGRAFT-ILIAC-ARTERY-REPAIR

CPT 34707: Ilio–iliac Tube Endograft for Iliac Artery Repair

CPT-34708-ILIO-ILIAC-TUBE-ENDOGRAFT-RUPTURED-ILIAC-ARTERY-REPAIR

CPT 34708: Ilio–iliac Tube Endograft for Ruptured Iliac Artery Repair

CPT-34710-ENDOVASCULAR-TUBE-GRAFT-INFRARENAL-AORTIC-ILIAC

CPT 34710: Extension Prosthesis (Tube Graft) for Infrarenal Aortic/Iliac Repair

CPT-34711-INFRARENAL-AORTIC-ILIAC-EXTENSION-PROSTHESIS-ADD-ON

CPT 34711: Extension Prosthesis for Infrarenal Aortic or Iliac Vessel, Add-on

Showing 1–10 of 26

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Jul 29, 2026.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`11`	Normally the post-operative status of the service	Use when this procedure is the usual, clearly defined post-operative course or global period applies and no unusual circumstances.
`22`	Increased procedural services	Use when work required is substantially greater than typically required (extensive adhesiolysis, difficult anatomy, prolonged time).
`23`	Unusual anesthesia	Use when general anesthesia is medically contraindicated but performed due to unusual circumstances (rarely applied to EVAR extensions).
`50`	Bilateral procedure	Use if identical extension prostheses are placed on both right and left iliac systems in the same session.
`52`	Reduced services	Use when the extension prosthesis placement is partially reduced or not completed as originally planned.
`59`	Distinct procedural service	Use to indicate a separate and distinct service when needed to report coexisting procedural codes correctly.
`62`	Two surgeons	Use when two surgeons work together as primary surgeons performing distinct portions of the procedure.
`78`	Return to the OR for related procedure during global period	Use if the patient returns to the operating room for a related procedure during the global period.
`80`	Assistant surgeon	Use when an assistant surgeon provides surgical assistance.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery	Use when a qualified assistant at surgery from the advanced practice clinician group participates.
`LT`	Left side	Use to indicate the left-sided vessel was treated when lateral specification is required.
`RT`	Right side	Use to indicate the right-sided vessel was treated when lateral specification is required.
`62`	Two surgeons	Use when two surgeons work together as primary surgeons performing distinct portions of the procedure.
`63`	Procedure performed on infants less than 4 kg	Typically not applicable; included only when patient weight criteria are met.
`73`	Discontinued outpatient procedure prior to anesthesia administration	Use if the extension placement was planned but canceled prior to anesthesia.

Taxonomy Code	Specialty	Notes
207P00000X	Vascular Surgery	Primary specialty performing EVAR and extension prosthesis placement.
207K00000X	Cardiothoracic/Vascular Surgery	Surgeons with combined training who perform complex aortic interventions.
208100000X	Interventional Radiology	Performs endovascular imaging guidance, device selection, and radiological interpretation.
363LA2200X	Interventional Cardiology	May participate in peripheral endovascular procedures in some centers.
2080S0127X	Surgical Critical Care (Vascular-oriented)	Involved in perioperative management for high-risk patients.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I71.4`	Abdominal aortic aneurysm, without rupture	Primary indication for endovascular aneurysm repair (EVAR); extension prosthesis may be placed to secure distal seal into iliac artery.
`I71.3`	Thoracoabdominal aortic aneurysm, without rupture	When aneurysm extends toward infrarenal/iliac segments requiring complex grafting and extensions.
`I70.2`	Atherosclerosis of native arteries of the extremities	Iliac artery disease may require iliac extension grafting or adjunctive stenting during EVAR.
`I77.1`	Stricture of artery	Vascular stenosis of iliac segment necessitating extension or adjunct procedures for adequate flow/seal.
`I72.9`	Arterial aneurysm, unspecified	Non-specific arterial aneurysms in pelvic/iliac segments that may be managed with endovascular grafting and extensions.
`Z95.2`	Presence of aorto-iliac bypass graft	Prior grafts can complicate anatomy and require extension prosthesis during re-intervention or secondary procedures.
`T82.8`	Other complications of cardiac and vascular prosthetic devices, implants and grafts	Used when complications of prior grafts require placement of an extension prosthesis during corrective EVAR.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`34701`	Repair of infrarenal abdominal aorta and/or iliac vessel with endovascular prosthesis, primary endograft placement (first graft)	Performed immediately before `34709`; `34709` is reported as an add-on for each extension prosthesis placed to the treated vessel during the primary procedure.
`37236`	Transcatheter placement of an intravascular stent(s), peripheral artery, with angioplasty when performed; initial vessel	May be performed for adjunctive iliac angioplasty or stenting during EVAR when needed for access or seal.
`36215`	Selective catheter placement, arterial system; each first order thoracic, abdominal, or pelvic branch vessel, within a vascular family	Used for selective catheterization if selective angiography beyond nonselective imaging is performed during the procedure.
`75894`	Endovascular therapeutic interventions, radiological supervision and interpretation; for abdominal aorta and/or iliac arteries	Billed for complex radiological supervision/interpretation components when separate reporting is appropriate alongside endovascular interventions.
`34802`	Endovascular repair using fenestrated or branched endograft, infrarenal to iliac, complex (example code category)	May represent more complex primary aortic endograft procedures that could necessitate additional extensions (`34709`) for limb seal or fixation.

CPT 34701: Infrarenal Aorto–Aortic Tube Endograft Placement

CPT-34702-AORTO-AORTIC-TUBE-ENDOGRAFT-RUPTURED-INFRARENAL-AORTA

CPT 34702: Aorto–Aortic Tube Endograft for Ruptured Infrarenal Aorta

CPT-34703-AORTO-UNI-ILIAC-ENDOGRAFT-PLACEMENT

CPT 34703: Aorto–Uni–Iliac Endograft Placement for Infrarenal Aortic or Iliac Repair

CPT-34704-AORTO-UNI-ILIAC-ENDOGRAFT-REPAIR-INFRARENAL-ILIAC

CPT 34704: Aorto–Uni–Iliac Endograft Repair of Infrarenal Aorta or Iliac Artery

CPT-34705-AORTO-BI-ILIAC-ENDOGRAFT-PLACEMENT-INFRARENAL-REPAIR

CPT 34705: Aorto–bi–iliac Endograft Placement for Infrarenal Aortic Repair

CPT-34706-AORTO-BI-ILIAC-ENDOGRAFT-FOR-RUPTURED-INFRARENAL-AORTA

CPT 34706: Aorto‑bi‑iliac Endograft Placement for Ruptured Infrarenal Aorta

CPT-34707-ILIO-ILIAC-ENDOGRAFT-ILIAC-ARTERY-REPAIR

CPT 34707: Ilio–iliac Tube Endograft for Iliac Artery Repair

CPT-34708-ILIO-ILIAC-TUBE-ENDOGRAFT-RUPTURED-ILIAC-ARTERY-REPAIR

CPT 34708: Ilio–iliac Tube Endograft for Ruptured Iliac Artery Repair

CPT-34710-ENDOVASCULAR-TUBE-GRAFT-INFRARENAL-AORTIC-ILIAC

CPT 34710: Extension Prosthesis (Tube Graft) for Infrarenal Aortic/Iliac Repair

CPT-34711-INFRARENAL-AORTIC-ILIAC-EXTENSION-PROSTHESIS-ADD-ON

CPT 34711: Extension Prosthesis for Infrarenal Aortic or Iliac Vessel, Add-on

Showing 1–10 of 26

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Jul 29, 2026.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

OpenPayer

CPT 34709: Extension Prosthesis (Tube Graft) for Infrarenal Aortic/Iliac Repair

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CPT 34709: Extension Prosthesis (Tube Graft) for Infrarenal Aortic/Iliac Repair

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Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References