ICD-10-PCS Code For Left Subclavian Artery: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 03R4 includes procedures performed to replace arteries in the left subclavian anatomical location. These ICD-10-PCS codes are used for inpatient documentation when surgical replacement of the left subclavian artery with biological or synthetic material is performed. Accurate coding within the ICD-10-PCS 03R4 group is essential for proper inpatient reimbursement, as it captures the procedure performed and determines appropriate case mix and payment.

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Left Subclavian Artery Replacement Procedure Overview

This procedure group includes replacement of the left subclavian artery, a major vessel in the upper arterial system that supplies blood to the left upper extremity and portions of the thorax. Procedures involve removing all or part of the native artery and implanting biological or synthetic material to take over the artery's function. Accurate ICD-10-PCS coding of these replacements supports correct inpatient reimbursement and reflects the complexity of vascular reconstruction.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
3	Body System	Upper Arteries
R	Operation	Replacement
4	Body Part	Subclavian Artery, Left

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ICD-10-PCS Code For Left Subclavian Artery: Procedure Code Group Overview

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Left Subclavian Artery Replacement Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
3	Body System	Upper Arteries
R	Operation	Replacement
4	Body Part	Subclavian Artery, Left

When to Use

Use a code from this group when the clinical record documents replacement of the left subclavian artery with graft or conduit material. Codes are appropriate when the operation recorded is a replacement rather than repair, bypass, or other arterial procedure.

ICD-10-PCS Codes

6 rows

ICD-10-PCS Code	Description
03R407Z	Replacement of Left Subclavian Artery with Autologous Tissue Substitute, Open Approach
03R40JZ	Replacement of Left Subclavian Artery with Synthetic Substitute, Open Approach
03R40KZ	Replacement of Left Subclavian Artery with Nonautologous Tissue Substitute, Open Approach
03R447Z	Replacement of Left Subclavian Artery with Autologous Tissue Substitute, Percutaneous Endoscopic Approach
03R44JZ	Replacement of Left Subclavian Artery with Synthetic Substitute, Percutaneous Endoscopic Approach
03R44KZ	Replacement of Left Subclavian Artery with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

DRG Codes

16 rows

DRG Code	Description
163	Major Chest Procedures with MCC
164	Major Chest Procedures with CC
165	Major Chest Procedures without CC/MCC
212	Concomitant Aortic and Mitral Valve Procedures
216	Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization with MCC
217	Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization with CC
218	Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization without CC/MCC
219	Cardiac Valve and Other Major Cardiothoracic Procedures without Cardiac Catheterization with MCC
220	Cardiac Valve and Other Major Cardiothoracic Procedures without Cardiac Catheterization with CC
221	Cardiac Valve and Other Major Cardiothoracic Procedures without Cardiac Catheterization without CC/MCC

Showing 1–10 of 16

Typical Clinical Scenarios

An elderly patient with progressive left upper extremity ischemia and symptomatic subclavian artery occlusive disease who has failed endovascular therapy is admitted for definitive surgical management; preoperative imaging shows an irreparably diseased segment of the left subclavian artery requiring excision and conduit replacement to restore antegrade flow to the arm and vertebral circulation. A planned open arterial replacement using either the patient’s own vein graft or a prosthetic conduit is performed. Typical codes: 03R407Z, 03R40JZ
A middle-aged trauma patient presents emergently after a penetrating injury to the left thoracic outlet with active hemorrhage and loss of distal pulses; intraoperative findings reveal a segmental defect of the left subclavian artery that cannot be repaired primarily, necessitating immediate excision of the damaged segment and implantation of a vascular graft to reestablish perfusion. Because this is an open emergency arterial replacement, a synthetic graft is commonly used. Typical codes: 03R40JZ
A patient with prior left subclavian artery bypass using autologous vein develops progressive aneurysmal degeneration of the graft with risk of rupture and requires inpatient reoperation to remove the diseased graft and replace it with a nonautologous biologic conduit or a synthetic prosthesis; the procedure is a replacement rather than revision or simple repair. Typical codes: 03R44KZ, 03R44JZ

ICD-10-PCS Code For Internal Mammary Artery Right: Procedure Code Group Overview

03R1-INTERNAL-MAMMARY-ARTERY-LEFT-REPLACEMENT

ICD-10-PCS Code For Internal Mammary Artery, Left: Procedure Code Group Overview

03R2-INNOMINATE-ARTERY-REPLACEMENT

ICD-10-PCS Code For Innominate Artery: Procedure Code Group Overview

03R3-SUBCLAVIAN-ARTERY-RIGHT-REPLACEMENT

ICD-10-PCS Code for Subclavian Artery Right: Procedure Code Group Overview

03R5-AXILLARY-ARTERY-RIGHT-REPLACEMENT

ICD-10-PCS Code For Axillary Artery Right: Procedure Code Group Overview

03R6-LEFT-AXILLARY-ARTERY-REPLACEMENT

ICD-10-PCS Code For Axillary Artery, Left: Procedure Code Group Overview

03R7-BRACHIAL-ARTERY-RIGHT-REPLACEMENT

ICD-10-PCS Code For Brachial Artery Right: Procedure Code Group Overview

03R8-LEFT-BRACHIAL-ARTERY-REPLACEMENT

ICD-10-PCS Code For Brachial Artery, Left: Procedure Code Group Overview

03R9-ULNAR-ARTERY-RIGHT-REPLACEMENT

ICD-10-PCS Code For Ulnar Artery Right: Procedure Code Group Overview

03RA-ULNAR-ARTERY-LEFT-REPLACEMENT

ICD-10-PCS Code For Ulnar Artery Left: Procedure Code Group Overview

Showing 1–10 of 29

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-PCS Codes

6 rows

ICD-10-PCS Code	Description
03R407Z	Replacement of Left Subclavian Artery with Autologous Tissue Substitute, Open Approach
03R40JZ	Replacement of Left Subclavian Artery with Synthetic Substitute, Open Approach
03R40KZ	Replacement of Left Subclavian Artery with Nonautologous Tissue Substitute, Open Approach
03R447Z	Replacement of Left Subclavian Artery with Autologous Tissue Substitute, Percutaneous Endoscopic Approach
03R44JZ	Replacement of Left Subclavian Artery with Synthetic Substitute, Percutaneous Endoscopic Approach
03R44KZ	Replacement of Left Subclavian Artery with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

DRG Codes

16 rows

DRG Code	Description
163	Major Chest Procedures with MCC
164	Major Chest Procedures with CC
165	Major Chest Procedures without CC/MCC
212	Concomitant Aortic and Mitral Valve Procedures
216	Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization with MCC
217	Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization with CC
218	Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization without CC/MCC
219	Cardiac Valve and Other Major Cardiothoracic Procedures without Cardiac Catheterization with MCC
220	Cardiac Valve and Other Major Cardiothoracic Procedures without Cardiac Catheterization with CC
221	Cardiac Valve and Other Major Cardiothoracic Procedures without Cardiac Catheterization without CC/MCC

Showing 1–10 of 16

Typical Clinical Scenarios

An elderly patient with progressive left upper extremity ischemia and symptomatic subclavian artery occlusive disease who has failed endovascular therapy is admitted for definitive surgical management; preoperative imaging shows an irreparably diseased segment of the left subclavian artery requiring excision and conduit replacement to restore antegrade flow to the arm and vertebral circulation. A planned open arterial replacement using either the patient’s own vein graft or a prosthetic conduit is performed. Typical codes: 03R407Z, 03R40JZ
A middle-aged trauma patient presents emergently after a penetrating injury to the left thoracic outlet with active hemorrhage and loss of distal pulses; intraoperative findings reveal a segmental defect of the left subclavian artery that cannot be repaired primarily, necessitating immediate excision of the damaged segment and implantation of a vascular graft to reestablish perfusion. Because this is an open emergency arterial replacement, a synthetic graft is commonly used. Typical codes: 03R40JZ
A patient with prior left subclavian artery bypass using autologous vein develops progressive aneurysmal degeneration of the graft with risk of rupture and requires inpatient reoperation to remove the diseased graft and replace it with a nonautologous biologic conduit or a synthetic prosthesis; the procedure is a replacement rather than revision or simple repair. Typical codes: 03R44KZ, 03R44JZ

ICD-10-PCS Code For Internal Mammary Artery Right: Procedure Code Group Overview

03R1-INTERNAL-MAMMARY-ARTERY-LEFT-REPLACEMENT

ICD-10-PCS Code For Internal Mammary Artery, Left: Procedure Code Group Overview

03R2-INNOMINATE-ARTERY-REPLACEMENT

ICD-10-PCS Code For Innominate Artery: Procedure Code Group Overview

03R3-SUBCLAVIAN-ARTERY-RIGHT-REPLACEMENT

ICD-10-PCS Code for Subclavian Artery Right: Procedure Code Group Overview

03R5-AXILLARY-ARTERY-RIGHT-REPLACEMENT

ICD-10-PCS Code For Axillary Artery Right: Procedure Code Group Overview

03R6-LEFT-AXILLARY-ARTERY-REPLACEMENT

ICD-10-PCS Code For Axillary Artery, Left: Procedure Code Group Overview

03R7-BRACHIAL-ARTERY-RIGHT-REPLACEMENT

ICD-10-PCS Code For Brachial Artery Right: Procedure Code Group Overview

03R8-LEFT-BRACHIAL-ARTERY-REPLACEMENT

ICD-10-PCS Code For Brachial Artery, Left: Procedure Code Group Overview

03R9-ULNAR-ARTERY-RIGHT-REPLACEMENT

ICD-10-PCS Code For Ulnar Artery Right: Procedure Code Group Overview

03RA-ULNAR-ARTERY-LEFT-REPLACEMENT

ICD-10-PCS Code For Ulnar Artery Left: Procedure Code Group Overview

Showing 1–10 of 29

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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

ICD-10-PCS Code For Left Subclavian Artery: Procedure Code Group Overview

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Left Subclavian Artery Replacement Procedure Overview

Code Attributes

OpenPayer

ICD-10-PCS Code For Left Subclavian Artery: Procedure Code Group Overview

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Left Subclavian Artery Replacement Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

ICD-10-PCS Code For Left Subclavian Artery: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Left Subclavian Artery: Procedure Code Group Overview policy alerts

Left Subclavian Artery Replacement Procedure Overview

Code Attributes

ICD-10-PCS Code For Left Subclavian Artery: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Left Subclavian Artery: Procedure Code Group Overview policy alerts

Left Subclavian Artery Replacement Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS 03R4 code group?

What are the individual ICD-10-PCS codes for open approach left subclavian artery replacement?

What are the individual ICD-10-PCS codes for percutaneous endoscopic approach left subclavian artery replacement?

What coding attributes define the 03R4 procedure group?

How does accurate coding within 03R4 impact reimbursement and DRG assignment?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in the ICD-10-PCS 03R4 code group?

What are the individual ICD-10-PCS codes for open approach left subclavian artery replacement?

What are the individual ICD-10-PCS codes for percutaneous endoscopic approach left subclavian artery replacement?

What coding attributes define the 03R4 procedure group?

How does accurate coding within 03R4 impact reimbursement and DRG assignment?

References