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CPT 34001: Surgical Removal of Cervical Arterial Obstruction

CPT code 34001 denotes an open surgical thrombectomy/embolectomy performed through a neck incision to remove an obstruction from a major cervical artery such as the carotid, subclavian, or innominate artery. This invasive vascular procedure is clinically significant because timely removal of arterial obstructions can prevent ischemic injury to the brain and upper extremity and often requires specialized vascular surgical teams and hospital resources. Nationally, the code captures high-acuity vascular surgery encounters that influence hospital resource use, perioperative risk profiling, and payer contracting for vascular services.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise profile of the procedure’s clinical context, typical sites of service, and the payer landscape. The publication presents benchmarkable elements such as service utilization patterns, reimbursement considerations, and common billing modifiers where available. It also summarizes relevant policy or coding guidance that affects claim adjudication and clinical documentation in vascular surgery. Data not available in the input is noted where applicable.

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Billing Code Overview

CPT code 34001 describes the surgical removal of an obstruction from a major cervical artery (for example, the carotid, subclavian, or innominate artery) via an incision in the neck. The procedure may involve manual extraction or use of a catheter for clot or debris removal. The primary clinical intent is to re-establish arterial blood flow in the head, neck, or upper extremity circulation when affected by an obstructing clot or other material.

Service type: Surgical arterial thrombectomy/embolectomy (open cervical approach)

Typical site of service: Operating room or surgical suite, with the patient managed perioperatively in a hospital inpatient or outpatient surgical setting depending on clinical status

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CPT 34001: Surgical Removal of Cervical Arterial Obstruction

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Billing Code Overview

Service type: Surgical arterial thrombectomy/embolectomy (open cervical approach)

Typical site of service: Operating room or surgical suite, with the patient managed perioperatively in a hospital inpatient or outpatient surgical setting depending on clinical status

Clinical & Coding Specifications

Clinical Context

A typical patient is a 68-year-old male who presents with acute onset left-sided weakness and aphasia. Imaging with CT angiography demonstrates an occlusive thrombus in the right common carotid artery extending into the internal carotid bulb. The vascular surgery team evaluates the patient and determines that open surgical thromboembolectomy via a cervical incision is indicated because the clot is proximal, not amenable to purely endovascular retrieval, or there is anatomic complexity (severe calcific plaque or occlusive lesion) requiring direct arterial exposure.

Preoperative workflow includes neurologic assessment, vascular imaging (CTA or duplex ultrasound), informed consent describing risks of stroke, cranial nerve injury, bleeding, and need for intraoperative shunt or patch angioplasty. The procedure is performed in an operating room with general anesthesia. The surgeon makes a neck incision to expose the carotid or innominate/subclavian artery, clamps proximal and distal segments, performs arteriotomy, removes the obstruction (thrombus or embolus) with or without use of an embolectomy catheter, assesses flow, and closes the arteriotomy with primary repair or patch angioplasty. Postoperative workflow includes hemodynamic and neurologic monitoring in PACU or ICU, antiplatelet/anticoagulant management per vascular team, and surveillance duplex before discharge.

Typical site of service is an inpatient operating room or ambulatory surgical center when clinically appropriate; most commonly the hospital operating room for carotid or proximal supra-aortic arterial embolectomy. Typical service type is open surgical thromboembolectomy of the carotid, subclavian, or innominate artery (34001).

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier (standard reporting)	Use when no modifier applies and procedure is billed as usual.
`22`	Increased procedural services	Use when the service required substantially greater effort or complexity (eg, extensive adhesions, difficult exposure).
`23`	Unusual anesthesia	Use when unusual circumstances require general anesthesia for a procedure normally performed with local/regional anesthesia.
`26`	Professional component	Use if splitting professional and technical components; rarely applicable for operative procedures but applies when reporting physician interpretation separate from facility billing.
`50`	Bilateral procedure	Use when the procedure is performed on both right and left arteries during the same operative session.
`51`	Multiple procedures	Use when `34001` is performed in addition to other procedures during the same operative session and payer requires modifier for multiple procedures.
`52`	Reduced services	Use when the procedure is partially reduced or not completed as originally planned.
`53`	Discontinued procedure	Use when the procedure is started but discontinued due to extenuating circumstances.
`62`	Two surgeons	Use when two surgeons from different specialties work together as primary surgeons performing distinct portions of the procedure.
`66`	Surgical team	Use when a surgical team performs the procedure with multiple surgeons contributing under team billing policies.
`78`	Unplanned return to OR	Use when the patient returns to the operating room for a related procedure during the global period (eg, re-exploration for bleeding).
`80`	Assistant surgeon	Use when an assistant surgeon is present and the payer recognizes assistant surgeon services.
`81`	Minimum assistant surgeon	Use when a minimal assistant participated and payer recognizes this modifier.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services	Use to report services rendered by eligible non-physician practitioners when permitted by payer.

Taxonomy Code	Specialty	Notes
`207RG0400X`	Vascular Surgery	Primary specialty performing open arterial embolectomy and carotid exposures.
`207RC0000X`	General Surgery	General surgeons with vascular experience may perform supra-aortic embolectomy in some settings.
`2080S0004X`	Thoracic Surgery	Thoracic/vascular surgeons may be involved when innominate or proximal subclavian exposure is needed.
`207RH0000X`	Surgery - Cardiothoracic	Cardiac/vascular surgeons collaborate for proximal great vessel procedures.
`208D00000X`	Interventional Radiology	May assist or perform catheter-based retrievals when combination open and endovascular approaches are used.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I65.21`	Occlusion and stenosis of right carotid artery	Common indication when thromboembolectomy of the right carotid is required to restore cerebral perfusion.
`I65.22`	Occlusion and stenosis of left carotid artery	Indicates left-sided carotid occlusion that may require open embolectomy.
`I74.3`	Embolism and thrombosis of arteries of the lower extremities	While lower extremity code, included only if embolic source affected multiple arterial beds; not primary for carotid but sometimes relevant in systemic embolism—(See note).
`I74.01`	Embolism and thrombosis of right carotid artery	Directly denotes embolic occlusion of the carotid that is treated with embolectomy.
`I74.02`	Embolism and thrombosis of left carotid artery	Directly denotes embolic occlusion of the left carotid artery requiring removal.
`I76.4`	Septic embolism of other specified sites	Relevant when the obstruction is infected embolus requiring surgical removal and debridement.
`G45.9`	Transient cerebral ischemic attack, unspecified	Often part of clinical presentation when intermittent ischemic symptoms precede definitive embolectomy.
`I73.9`	Peripheral vascular disease, unspecified	May be listed as comorbidity affecting surgical risk and vascular pathology.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`35201`	Thrombectomy, with or without embolectomy, for arterial occlusion, neck; external carotid artery	Related open procedure for thrombectomy of external carotid branches when distal extension is present or separate arterial territory is treated.
`35301`	Thrombectomy, with or without embolectomy, for arterial occlusion; upper extremity, with or without thrombolytic agent, each vessel	Performed when thromboembolic disease extends into subclavian-axillary arterial segments and additional thrombectomy is required.
`37211`	Vascular embolization or occlusion, therapeutic, nonselective, proximal vessel (e.g., subclavian)	Endovascular option sometimes performed before or after open embolectomy for adjunctive control or embolization.
`76000`	Fluoroscopy (procedure)	Intraoperative imaging support when an embolectomy catheter is used and fluoroscopic guidance is required.
`36415`	Collection of venous blood by venipuncture	Common ancillary service for preoperative labs and coagulation testing prior to surgery.

CPT 34051: Subclavian and Innominate Artery Thrombectomy/Embolectomy

CPT-34101-UPPER-EXTREMITY-ARTERY-THROMBECTOMY-AXILLARY-BRACHIAL-SUBCLAVIAN

CPT 34101: Removal of Obstruction from Axillary/Brachial/Subclavian/Innominate Artery

CPT-34111-FOREARM-ARTERIAL-THROMBECTOMY-EMBOLECTOMY

CPT 34111: Forearm Arterial Thrombectomy/Embolectomy

CPT-34151-OPEN-ARTERIAL-THROMBECTOMY-ABDOMINAL-VISCERAL-AORTOILIAC

CPT 34151: Open Arterial Thrombectomy, Abdominal Visceral or Aortoiliac Arteries

CPT-34201-FEMOROPOPLITEAL-AORTOILIAC-THROMBECTOMY

CPT 34201: Femoropopliteal/Aortoiliac Arterial Thrombectomy

CPT-34203-PERIPHERAL-ARTERIAL-THROMBECTOMY-POPLITEAL-TIBIO-PERONEAL

CPT 34203: Peripheral Arterial Thrombectomy, Popliteal–Tibio–Peroneal Segment

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.

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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
`00`	No modifier (standard reporting)	Use when no modifier applies and procedure is billed as usual.
`22`	Increased procedural services	Use when the service required substantially greater effort or complexity (eg, extensive adhesions, difficult exposure).
`23`	Unusual anesthesia	Use when unusual circumstances require general anesthesia for a procedure normally performed with local/regional anesthesia.
`26`	Professional component	Use if splitting professional and technical components; rarely applicable for operative procedures but applies when reporting physician interpretation separate from facility billing.
`50`	Bilateral procedure	Use when the procedure is performed on both right and left arteries during the same operative session.
`51`	Multiple procedures	Use when `34001` is performed in addition to other procedures during the same operative session and payer requires modifier for multiple procedures.
`52`	Reduced services	Use when the procedure is partially reduced or not completed as originally planned.
`53`	Discontinued procedure	Use when the procedure is started but discontinued due to extenuating circumstances.
`62`	Two surgeons	Use when two surgeons from different specialties work together as primary surgeons performing distinct portions of the procedure.
`66`	Surgical team	Use when a surgical team performs the procedure with multiple surgeons contributing under team billing policies.
`78`	Unplanned return to OR	Use when the patient returns to the operating room for a related procedure during the global period (eg, re-exploration for bleeding).
`80`	Assistant surgeon	Use when an assistant surgeon is present and the payer recognizes assistant surgeon services.
`81`	Minimum assistant surgeon	Use when a minimal assistant participated and payer recognizes this modifier.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services	Use to report services rendered by eligible non-physician practitioners when permitted by payer.

Taxonomy Code	Specialty	Notes
`207RG0400X`	Vascular Surgery	Primary specialty performing open arterial embolectomy and carotid exposures.
`207RC0000X`	General Surgery	General surgeons with vascular experience may perform supra-aortic embolectomy in some settings.
`2080S0004X`	Thoracic Surgery	Thoracic/vascular surgeons may be involved when innominate or proximal subclavian exposure is needed.
`207RH0000X`	Surgery - Cardiothoracic	Cardiac/vascular surgeons collaborate for proximal great vessel procedures.
`208D00000X`	Interventional Radiology	May assist or perform catheter-based retrievals when combination open and endovascular approaches are used.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I65.21`	Occlusion and stenosis of right carotid artery	Common indication when thromboembolectomy of the right carotid is required to restore cerebral perfusion.
`I65.22`	Occlusion and stenosis of left carotid artery	Indicates left-sided carotid occlusion that may require open embolectomy.
`I74.3`	Embolism and thrombosis of arteries of the lower extremities	While lower extremity code, included only if embolic source affected multiple arterial beds; not primary for carotid but sometimes relevant in systemic embolism—(See note).
`I74.01`	Embolism and thrombosis of right carotid artery	Directly denotes embolic occlusion of the carotid that is treated with embolectomy.
`I74.02`	Embolism and thrombosis of left carotid artery	Directly denotes embolic occlusion of the left carotid artery requiring removal.
`I76.4`	Septic embolism of other specified sites	Relevant when the obstruction is infected embolus requiring surgical removal and debridement.
`G45.9`	Transient cerebral ischemic attack, unspecified	Often part of clinical presentation when intermittent ischemic symptoms precede definitive embolectomy.
`I73.9`	Peripheral vascular disease, unspecified	May be listed as comorbidity affecting surgical risk and vascular pathology.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`35201`	Thrombectomy, with or without embolectomy, for arterial occlusion, neck; external carotid artery	Related open procedure for thrombectomy of external carotid branches when distal extension is present or separate arterial territory is treated.
`35301`	Thrombectomy, with or without embolectomy, for arterial occlusion; upper extremity, with or without thrombolytic agent, each vessel	Performed when thromboembolic disease extends into subclavian-axillary arterial segments and additional thrombectomy is required.
`37211`	Vascular embolization or occlusion, therapeutic, nonselective, proximal vessel (e.g., subclavian)	Endovascular option sometimes performed before or after open embolectomy for adjunctive control or embolization.
`76000`	Fluoroscopy (procedure)	Intraoperative imaging support when an embolectomy catheter is used and fluoroscopic guidance is required.
`36415`	Collection of venous blood by venipuncture	Common ancillary service for preoperative labs and coagulation testing prior to surgery.

CPT 34051: Subclavian and Innominate Artery Thrombectomy/Embolectomy

CPT-34101-UPPER-EXTREMITY-ARTERY-THROMBECTOMY-AXILLARY-BRACHIAL-SUBCLAVIAN

CPT 34101: Removal of Obstruction from Axillary/Brachial/Subclavian/Innominate Artery

CPT-34111-FOREARM-ARTERIAL-THROMBECTOMY-EMBOLECTOMY

CPT 34111: Forearm Arterial Thrombectomy/Embolectomy

CPT-34151-OPEN-ARTERIAL-THROMBECTOMY-ABDOMINAL-VISCERAL-AORTOILIAC

CPT 34151: Open Arterial Thrombectomy, Abdominal Visceral or Aortoiliac Arteries

CPT-34201-FEMOROPOPLITEAL-AORTOILIAC-THROMBECTOMY

CPT 34201: Femoropopliteal/Aortoiliac Arterial Thrombectomy

CPT-34203-PERIPHERAL-ARTERIAL-THROMBECTOMY-POPLITEAL-TIBIO-PERONEAL

CPT 34203: Peripheral Arterial Thrombectomy, Popliteal–Tibio–Peroneal Segment

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 34001: Surgical Removal of Cervical Arterial Obstruction

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Billing Code Overview

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CPT 34001: Surgical Removal of Cervical Arterial Obstruction

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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