ICD-10-PCS Code For Innominate Vein, Left: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 05B4 includes procedures performed to excise a portion of the left innominate vein in the upper veins. These ICD-10-PCS codes are used for inpatient documentation when a segment of the left innominate vein is surgically removed without replacement for reasons such as thrombus, tumor, injury, or nonviable tissue. Accurate coding within the ICD-10-PCS 05B4 group is essential for proper inpatient reimbursement, as it captures the specific excision procedure performed and supports clinical documentation accuracy.

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Innominate Vein, Left Excision Procedure Overview

This procedure group includes excision of a portion of the left innominate vein within the upper venous system. These procedures involve cutting out or off segments of the left innominate vein without replacement and target venous structures draining the head, neck, and upper extremity. Accurate coding identifies the specific vein and excision operation, which supports appropriate inpatient reimbursement and clinical recordkeeping.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
5	Body System	Upper Veins
B	Operation	Excision
4	Body Part	Innominate Vein, Left

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ICD-10-PCS Code For Innominate Vein, Left: Procedure Code Group Overview

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Innominate Vein, Left Excision Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
5	Body System	Upper Veins
B	Operation	Excision
4	Body Part	Innominate Vein, Left

When to Use

Use a code from this group when a surgeon removes part of the left innominate vein and does not replace or reconstruct the vessel. This applies to inpatient procedures performed for indications such as thrombus, venous injury, tumor involvement, or nonviable venous tissue.

ICD-10-PCS Codes

6 rows

ICD-10-PCS Code	Description
05B40ZX	Excision of Left Innominate Vein, Open Approach, Diagnostic
05B40ZZ	Excision of Left Innominate Vein, Open Approach
05B43ZX	Excision of Left Innominate Vein, Percutaneous Approach, Diagnostic
05B43ZZ	Excision of Left Innominate Vein, Percutaneous Approach
05B44ZX	Excision of Left Innominate Vein, Percutaneous Endoscopic Approach, Diagnostic
05B44ZZ	Excision of Left Innominate Vein, Percutaneous Endoscopic Approach

DRG Codes

12 rows

DRG Code	Description
163	Major Chest Procedures with MCC
164	Major Chest Procedures with CC
165	Major Chest Procedures without CC/MCC
252	Other Vascular Procedures with MCC
253	Other Vascular Procedures with CC
254	Other Vascular Procedures without CC/MCC
270	Other Major Cardiovascular Procedures with MCC
271	Other Major Cardiovascular Procedures with CC
272	Other Major Cardiovascular Procedures without CC/MCC
987	Non-Extensive O.R. Procedures Unrelated to Principal Diagnosis with MCC

Showing 1–10 of 12

Typical Clinical Scenarios

A middle-aged patient presents to the emergency department with acute left-sided neck and facial swelling, dyspnea, and imaging demonstrating a thrombosed segment of the left innominate vein with compromised venous outflow and worsening symptoms despite anticoagulation; the patient is admitted for urgent surgical management to remove the nonviable, occlusive venous segment to relieve obstruction and prevent further complications. Typical codes: 05B40ZZ, 05B43ZZ
An adult with a known left brachiocephalic vein (left innominate vein) tumor involving the vessel wall is scheduled for an elective inpatient procedure to resect the involved venous segment when reconstruction is not planned due to tumor extent; the operation is performed via a planned open approach to excise the diseased portion of the vein. Typical codes: 05B40ZZ, 05B40ZX
A hospitalized patient develops a postoperative infected pseudoaneurysm with nonviable tissue of the left innominate vein after prior central venous instrumentation; due to sepsis and local tissue necrosis, the vascular surgery team performs percutaneous endoscopic excision of the damaged venous portion to control infection and remove devitalized tissue. Typical codes: 05B44ZZ, 05B44ZX

Related Codes

05B0-AZYGOS-VEIN-EXCISION

ICD-10-PCS Code For Azygos Vein: Procedure Code Group Overview

05B1-HEMIAZYGOS-VEIN-EXCISION

ICD-10-PCS Code For Hemiazygos Vein: Procedure Code Group Overview

05B3-RIGHT-INNOMINATE-VEIN-CUTTING-OUT-INNOMINATE-VEIN-RIGHT-EXCISION

ICD-10-PCS Code For Innominate Vein Right: Procedure Code Group Overview

05B5-SUBCLAVIAN-VEIN-RIGHT-EXCISION

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

05B6-LEFT-SUBCLAVIAN-VEIN-EXCISION

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

05B7-AXILLARY-VEIN-RIGHT-EXCISION

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

05B8-LEFT-AXILLARY-VEIN-EXCISION

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

05B9-BRACHIAL-VEIN-RIGHT-EXCISION

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

05BA-LEFT-BRACHIAL-VEIN-EXCISION

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

05BB-BASILIC-VEIN-RIGHT-EXCISION

ICD-10-PCS Code For Basilic Vein Right: Procedure Code Group Overview

Showing 1–10 of 25

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
05B40ZX	Excision of Left Innominate Vein, Open Approach, Diagnostic
05B40ZZ	Excision of Left Innominate Vein, Open Approach
05B43ZX	Excision of Left Innominate Vein, Percutaneous Approach, Diagnostic
05B43ZZ	Excision of Left Innominate Vein, Percutaneous Approach
05B44ZX	Excision of Left Innominate Vein, Percutaneous Endoscopic Approach, Diagnostic
05B44ZZ	Excision of Left Innominate Vein, Percutaneous Endoscopic Approach

DRG Codes

12 rows

DRG Code	Description
163	Major Chest Procedures with MCC
164	Major Chest Procedures with CC
165	Major Chest Procedures without CC/MCC
252	Other Vascular Procedures with MCC
253	Other Vascular Procedures with CC
254	Other Vascular Procedures without CC/MCC
270	Other Major Cardiovascular Procedures with MCC
271	Other Major Cardiovascular Procedures with CC
272	Other Major Cardiovascular Procedures without CC/MCC
987	Non-Extensive O.R. Procedures Unrelated to Principal Diagnosis with MCC

Showing 1–10 of 12

Typical Clinical Scenarios

A middle-aged patient presents to the emergency department with acute left-sided neck and facial swelling, dyspnea, and imaging demonstrating a thrombosed segment of the left innominate vein with compromised venous outflow and worsening symptoms despite anticoagulation; the patient is admitted for urgent surgical management to remove the nonviable, occlusive venous segment to relieve obstruction and prevent further complications. Typical codes: 05B40ZZ, 05B43ZZ
An adult with a known left brachiocephalic vein (left innominate vein) tumor involving the vessel wall is scheduled for an elective inpatient procedure to resect the involved venous segment when reconstruction is not planned due to tumor extent; the operation is performed via a planned open approach to excise the diseased portion of the vein. Typical codes: 05B40ZZ, 05B40ZX
A hospitalized patient develops a postoperative infected pseudoaneurysm with nonviable tissue of the left innominate vein after prior central venous instrumentation; due to sepsis and local tissue necrosis, the vascular surgery team performs percutaneous endoscopic excision of the damaged venous portion to control infection and remove devitalized tissue. Typical codes: 05B44ZZ, 05B44ZX

Related Codes

05B0-AZYGOS-VEIN-EXCISION

ICD-10-PCS Code For Azygos Vein: Procedure Code Group Overview

05B1-HEMIAZYGOS-VEIN-EXCISION

ICD-10-PCS Code For Hemiazygos Vein: Procedure Code Group Overview

05B3-RIGHT-INNOMINATE-VEIN-CUTTING-OUT-INNOMINATE-VEIN-RIGHT-EXCISION

ICD-10-PCS Code For Innominate Vein Right: Procedure Code Group Overview

05B5-SUBCLAVIAN-VEIN-RIGHT-EXCISION

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

05B6-LEFT-SUBCLAVIAN-VEIN-EXCISION

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

05B7-AXILLARY-VEIN-RIGHT-EXCISION

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

05B8-LEFT-AXILLARY-VEIN-EXCISION

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

05B9-BRACHIAL-VEIN-RIGHT-EXCISION

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

05BA-LEFT-BRACHIAL-VEIN-EXCISION

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

05BB-BASILIC-VEIN-RIGHT-EXCISION

ICD-10-PCS Code For Basilic Vein Right: Procedure Code Group Overview

Showing 1–10 of 25

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.

ICD-10-PCS Code For Innominate Vein, Left: Procedure Code Group Overview

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

Innominate Vein, Left Excision Procedure Overview

Code Attributes

ICD-10-PCS Code For Innominate Vein, Left: Procedure Code Group Overview

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

Innominate Vein, Left Excision Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS codes are included in the Innominate Vein, Left excision group?

What body system and operation do the 05B4 codes represent?

For what clinical situations is the left innominate vein excision coded under 05B4 typically performed?

How does accurate coding in the 05B4 group affect inpatient billing and records?

Which DRG groups might be associated with procedures coded from 05B4?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS codes are included in the Innominate Vein, Left excision group?

What body system and operation do the 05B4 codes represent?

For what clinical situations is the left innominate vein excision coded under 05B4 typically performed?

How does accurate coding in the 05B4 group affect inpatient billing and records?

Which DRG groups might be associated with procedures coded from 05B4?

References