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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0374 includes procedures performed to dilate arterial structures in the left subclavian artery. These ICD-10-PCS codes are used for inpatient documentation when a clinician performs an endovascular or percutaneous dilation to widen the lumen of the left subclavian artery to improve blood flow. Accurate coding within the ICD-10-PCS 0374 group is essential for proper inpatient reimbursement, as it captures the procedure performed and determines appropriate case mix and payment.

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Subclavian Artery, Left Dilation Procedure Overview

This procedure group includes dilation of the left subclavian artery, targeting the upper arterial circulation. Procedures in this group widen the lumen of the left subclavian artery to restore or improve blood flow. Accurate coding matters for inpatient reimbursement because the International Classification of Diseases, Tenth Revision, Procedure Coding System captures the specific arterial site and dilation operation, which affects case mix and payment.

Code Attributes

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

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

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Subclavian Artery, Left Dilation Procedure Overview

Code Attributes

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

When to Use

Use a code from this group when the clinical procedure performed is dilation of the left subclavian artery to relieve stenosis or improve perfusion. These codes apply for inpatient reporting of procedures that mechanically widen the arterial lumen, including balloon angioplasty and similar dilation techniques.

ICD-10-PCS Codes

33 rows

ICD-10-PCS Code	Description
037404Z	Dilation of Left Subclavian Artery with Drug-eluting Intraluminal Device, Open Approach
037405Z	Dilation of Left Subclavian Artery with Two Drug-eluting Intraluminal Devices, Open Approach
037406Z	Dilation of Left Subclavian Artery with Three Drug-eluting Intraluminal Devices, Open Approach
037407Z	Dilation of Left Subclavian Artery with Four or More Drug-eluting Intraluminal Devices, Open Approach
03740D1	Dilation of Left Subclavian Artery with Intraluminal Device, using Drug-Coated Balloon, Open Approach
03740DZ	Dilation of Left Subclavian Artery with Intraluminal Device, Open Approach
03740EZ	Dilation of Left Subclavian Artery with Two Intraluminal Devices, Open Approach
03740FZ	Dilation of Left Subclavian Artery with Three Intraluminal Devices, Open Approach
03740GZ	Dilation of Left Subclavian Artery with Four or More Intraluminal Devices, Open Approach
03740Z1	Dilation of Left Subclavian Artery using Drug-Coated Balloon, Open Approach

Showing 1–10 of 33

DRG Codes

33 rows

DRG Code	Description
037	Extracranial Procedures with MCC
038	Extracranial Procedures with CC
039	Extracranial Procedures without CC/MCC
166	Other Respiratory System O.R. Procedures with MCC
167	Other Respiratory System O.R. Procedures with CC
168	Other Respiratory System O.R. Procedures without CC/MCC
252	Other Vascular Procedures with MCC
253	Other Vascular Procedures with CC
254	Other Vascular Procedures without CC/MCC
356	Other Digestive System O.R. Procedures with MCC

Showing 1–10 of 33

Typical Clinical Scenarios

An elderly patient presents to the hospital with acute left upper extremity ischemia and severe arm claudication after recent onset of rest pain. Imaging demonstrates high-grade focal stenosis of the left subclavian artery proximal to the vertebral artery origin. A percutaneous balloon angioplasty is performed with placement of a single drug-eluting stent to restore lumen patency and improve distal perfusion. Typical codes: 037434Z
A middle-aged patient with symptomatic subclavian steal syndrome and exertional left arm fatigue undergoes a scheduled endovascular intervention after outpatient workup documents a discrete left subclavian artery stenosis. During the elective percutaneous endovascular procedure a drug-coated balloon angioplasty is used without placement of a stent to dilate the arterial segment and relieve flow reversal symptoms. Typical codes: 03743Z1
A patient with prior left subclavian artery stenting returns with recurrent restenosis and recurrent ischemic symptoms despite medical therapy. Inpatient evaluation leads to repeat percutaneous transluminal dilation of the same left subclavian arterial segment with deployment of two intraluminal devices to scaffold the vessel and address recurrent narrowing. Typical codes: 037435Z

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

0371-INTERNAL-MAMMARY-ARTERY-LEFT-DILATION

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

0372-INNOMINATE-ARTERY-DILATION

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

0373-SUBCLAVIAN-ARTERY-DILATION

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

0375-AXILLARY-ARTERY-DILATION

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

0376-AXILLARY-ARTERY-LEFT-DILATION

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

0377-BRACHIAL-ARTERY-RIGHT-DILATION

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

0378-LEFT-BRACHIAL-ARTERY-DILATION

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

0379-ULNAR-ARTERY-RIGHT-DILATION

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

037A-ULNAR-ARTERY-LEFT-DILATION

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

33 rows

ICD-10-PCS Code	Description
037404Z	Dilation of Left Subclavian Artery with Drug-eluting Intraluminal Device, Open Approach
037405Z	Dilation of Left Subclavian Artery with Two Drug-eluting Intraluminal Devices, Open Approach
037406Z	Dilation of Left Subclavian Artery with Three Drug-eluting Intraluminal Devices, Open Approach
037407Z	Dilation of Left Subclavian Artery with Four or More Drug-eluting Intraluminal Devices, Open Approach
03740D1	Dilation of Left Subclavian Artery with Intraluminal Device, using Drug-Coated Balloon, Open Approach
03740DZ	Dilation of Left Subclavian Artery with Intraluminal Device, Open Approach
03740EZ	Dilation of Left Subclavian Artery with Two Intraluminal Devices, Open Approach
03740FZ	Dilation of Left Subclavian Artery with Three Intraluminal Devices, Open Approach
03740GZ	Dilation of Left Subclavian Artery with Four or More Intraluminal Devices, Open Approach
03740Z1	Dilation of Left Subclavian Artery using Drug-Coated Balloon, Open Approach

Showing 1–10 of 33

DRG Codes

33 rows

DRG Code	Description
037	Extracranial Procedures with MCC
038	Extracranial Procedures with CC
039	Extracranial Procedures without CC/MCC
166	Other Respiratory System O.R. Procedures with MCC
167	Other Respiratory System O.R. Procedures with CC
168	Other Respiratory System O.R. Procedures without CC/MCC
252	Other Vascular Procedures with MCC
253	Other Vascular Procedures with CC
254	Other Vascular Procedures without CC/MCC
356	Other Digestive System O.R. Procedures with MCC

Showing 1–10 of 33

Typical Clinical Scenarios

An elderly patient presents to the hospital with acute left upper extremity ischemia and severe arm claudication after recent onset of rest pain. Imaging demonstrates high-grade focal stenosis of the left subclavian artery proximal to the vertebral artery origin. A percutaneous balloon angioplasty is performed with placement of a single drug-eluting stent to restore lumen patency and improve distal perfusion. Typical codes: 037434Z
A middle-aged patient with symptomatic subclavian steal syndrome and exertional left arm fatigue undergoes a scheduled endovascular intervention after outpatient workup documents a discrete left subclavian artery stenosis. During the elective percutaneous endovascular procedure a drug-coated balloon angioplasty is used without placement of a stent to dilate the arterial segment and relieve flow reversal symptoms. Typical codes: 03743Z1
A patient with prior left subclavian artery stenting returns with recurrent restenosis and recurrent ischemic symptoms despite medical therapy. Inpatient evaluation leads to repeat percutaneous transluminal dilation of the same left subclavian arterial segment with deployment of two intraluminal devices to scaffold the vessel and address recurrent narrowing. Typical codes: 037435Z

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

0371-INTERNAL-MAMMARY-ARTERY-LEFT-DILATION

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

0372-INNOMINATE-ARTERY-DILATION

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

0373-SUBCLAVIAN-ARTERY-DILATION

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

0375-AXILLARY-ARTERY-DILATION

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

0376-AXILLARY-ARTERY-LEFT-DILATION

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

0377-BRACHIAL-ARTERY-RIGHT-DILATION

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

0378-LEFT-BRACHIAL-ARTERY-DILATION

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

0379-ULNAR-ARTERY-RIGHT-DILATION

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

037A-ULNAR-ARTERY-LEFT-DILATION

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 Subclavian Artery, Left: Procedure Code Group Overview

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Subclavian Artery, Left Dilation Procedure Overview

Code Attributes

OpenPayer

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

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Subclavian Artery, Left Dilation 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 Subclavian Artery, Left: Procedure Code Group Overview

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

Subclavian Artery, Left Dilation Procedure Overview

Code Attributes

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

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

Subclavian Artery, Left Dilation Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code group covers dilation of the left subclavian artery?

What operation and body system attributes define this procedure group?

How do approach and device variations affect codes in the 0374 group?

Can you list examples of specific ICD-10-PCS codes for left subclavian artery dilation?

Which related DRGs may be assigned when coding procedures in the 0374 group?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code group covers dilation of the left subclavian artery?

What operation and body system attributes define this procedure group?

How do approach and device variations affect codes in the 0374 group?

Can you list examples of specific ICD-10-PCS codes for left subclavian artery dilation?

Which related DRGs may be assigned when coding procedures in the 0374 group?

References