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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0591 includes procedures performed to drain fluids and/or gases from the hemiazygos vein in the upper veins. These ICD-10-PCS codes are used for inpatient documentation when a clinician performs drainage of the hemiazygos vein to remove accumulated blood, lymph, or other fluids or to obtain diagnostic specimens. Accurate coding within the ICD-10-PCS 0591 group is essential for proper inpatient reimbursement, as it captures the specific drainage procedure performed and supports clinical documentation accuracy.

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Hemiazygos Vein Drainage Procedure Overview

This procedure group covers drainage procedures performed on the hemiazygos vein within the upper veins body system. These procedures involve taking or letting out fluids and/or gases from the hemiazygos vein to relieve accumulation or to obtain diagnostic samples. Accurate ICD-10-PCS coding of these drainage procedures ensures correct inpatient documentation and supports appropriate reimbursement for the care provided.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
5	Body System	Upper Veins
9	Operation	Drainage
1	Body Part	Hemiazygos Vein

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

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Hemiazygos Vein Drainage Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
5	Body System	Upper Veins
9	Operation	Drainage
1	Body Part	Hemiazygos Vein

When to Use

Use a code from this group when a drainage procedure is performed on the hemiazygos vein to relieve an accumulation of fluid or to obtain a diagnostic sample. These codes apply to inpatient settings where the hemiazygos vein was the anatomical focus of the drainage operation.

ICD-10-PCS Codes

9 rows

ICD-10-PCS Code	Description
059100Z	Drainage of Hemiazygos Vein with Drainage Device, Open Approach
05910ZX	Drainage of Hemiazygos Vein, Open Approach, Diagnostic
05910ZZ	Drainage of Hemiazygos Vein, Open Approach
059130Z	Drainage of Hemiazygos Vein with Drainage Device, Percutaneous Approach
05913ZX	Drainage of Hemiazygos Vein, Percutaneous Approach, Diagnostic
05913ZZ	Drainage of Hemiazygos Vein, Percutaneous Approach
059140Z	Drainage of Hemiazygos Vein with Drainage Device, Percutaneous Endoscopic Approach
05914ZX	Drainage of Hemiazygos Vein, Percutaneous Endoscopic Approach, Diagnostic
05914ZZ	Drainage of Hemiazygos Vein, Percutaneous Endoscopic Approach

DRG Codes

6 rows

DRG Code	Description
252	Other Vascular Procedures with MCC
253	Other Vascular Procedures with CC
254	Other Vascular Procedures without CC/MCC
987	Non-Extensive O.R. Procedures Unrelated to Principal Diagnosis with MCC
988	Non-Extensive O.R. Procedures Unrelated to Principal Diagnosis with CC
989	Non-Extensive O.R. Procedures Unrelated to Principal Diagnosis without CC/MCC

Typical Clinical Scenarios

An older patient on anticoagulation presents to the hospital with sudden-onset chest pain and imaging shows a hemiazygos vein hematoma causing expanding mediastinal compression; inpatient drainage is performed urgently to evacuate accumulated blood and relieve mass effect. Because this is an acute drainage to remove blood via an open surgical approach, a code reflecting open drainage is used. Typical codes: 059100Z, 05910ZZ
A middle-aged patient with recurrent chylous pleural effusions undergoes a planned inpatient percutaneous drainage of the hemiazygos vein to obtain fluid for biochemical analysis and to reduce ongoing lymphatic leakage prior to definitive repair. The intent is diagnostic and therapeutic via a percutaneous approach using image-guided catheter drainage. Typical codes: 05913ZX, 059130Z
A postoperative patient develops a persistent seroma adjacent to the hemiazygos vein after thoracic surgery, requiring bedside percutaneous endoscopic drainage and placement of a drainage device to control ongoing fluid accumulation and prevent infection. This is a complication management procedure performed via a percutaneous endoscopic approach with a drainage device. Typical codes: 059140Z, 05914ZZ

Related Codes

0590-AZYGOS-VEIN-DRAINAGE

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

0593-INNOMINATE-VEIN-RIGHT-DRAINAGE

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

0594-LEFT-INNOMINATE-VEIN-DRAINAGE

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

0595-SUBCLAVIAN-VEIN-RIGHT-DRAINAGE

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

0596-LEFT-SUBCLAVIAN-VEIN-DRAINAGE

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

0597-AXILLARY-VEIN-RIGHT-DRAINAGE

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

0598-LEFT-AXILLARY-VEIN-DRAINAGE

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

0599-BRACHIAL-VEIN-RIGHT-DRAINAGE

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

059A-LEFT-BRACHIAL-VEIN-DRAINAGE

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

059B-BASILIC-VEIN-RIGHT-DRAINAGE

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

9 rows

ICD-10-PCS Code	Description
059100Z	Drainage of Hemiazygos Vein with Drainage Device, Open Approach
05910ZX	Drainage of Hemiazygos Vein, Open Approach, Diagnostic
05910ZZ	Drainage of Hemiazygos Vein, Open Approach
059130Z	Drainage of Hemiazygos Vein with Drainage Device, Percutaneous Approach
05913ZX	Drainage of Hemiazygos Vein, Percutaneous Approach, Diagnostic
05913ZZ	Drainage of Hemiazygos Vein, Percutaneous Approach
059140Z	Drainage of Hemiazygos Vein with Drainage Device, Percutaneous Endoscopic Approach
05914ZX	Drainage of Hemiazygos Vein, Percutaneous Endoscopic Approach, Diagnostic
05914ZZ	Drainage of Hemiazygos Vein, Percutaneous Endoscopic Approach

DRG Codes

6 rows

DRG Code	Description
252	Other Vascular Procedures with MCC
253	Other Vascular Procedures with CC
254	Other Vascular Procedures without CC/MCC
987	Non-Extensive O.R. Procedures Unrelated to Principal Diagnosis with MCC
988	Non-Extensive O.R. Procedures Unrelated to Principal Diagnosis with CC
989	Non-Extensive O.R. Procedures Unrelated to Principal Diagnosis without CC/MCC

Typical Clinical Scenarios

An older patient on anticoagulation presents to the hospital with sudden-onset chest pain and imaging shows a hemiazygos vein hematoma causing expanding mediastinal compression; inpatient drainage is performed urgently to evacuate accumulated blood and relieve mass effect. Because this is an acute drainage to remove blood via an open surgical approach, a code reflecting open drainage is used. Typical codes: 059100Z, 05910ZZ
A middle-aged patient with recurrent chylous pleural effusions undergoes a planned inpatient percutaneous drainage of the hemiazygos vein to obtain fluid for biochemical analysis and to reduce ongoing lymphatic leakage prior to definitive repair. The intent is diagnostic and therapeutic via a percutaneous approach using image-guided catheter drainage. Typical codes: 05913ZX, 059130Z
A postoperative patient develops a persistent seroma adjacent to the hemiazygos vein after thoracic surgery, requiring bedside percutaneous endoscopic drainage and placement of a drainage device to control ongoing fluid accumulation and prevent infection. This is a complication management procedure performed via a percutaneous endoscopic approach with a drainage device. Typical codes: 059140Z, 05914ZZ

Related Codes

0590-AZYGOS-VEIN-DRAINAGE

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

0593-INNOMINATE-VEIN-RIGHT-DRAINAGE

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

0594-LEFT-INNOMINATE-VEIN-DRAINAGE

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

0595-SUBCLAVIAN-VEIN-RIGHT-DRAINAGE

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

0596-LEFT-SUBCLAVIAN-VEIN-DRAINAGE

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

0597-AXILLARY-VEIN-RIGHT-DRAINAGE

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

0598-LEFT-AXILLARY-VEIN-DRAINAGE

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

0599-BRACHIAL-VEIN-RIGHT-DRAINAGE

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

059A-LEFT-BRACHIAL-VEIN-DRAINAGE

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

059B-BASILIC-VEIN-RIGHT-DRAINAGE

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 Hemiazygos Vein: Procedure Code Group Overview

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

Hemiazygos Vein Drainage Procedure Overview

Code Attributes

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

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

Hemiazygos Vein Drainage 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 drainage procedures of the hemiazygos vein?

What are the approach and device variations listed in this code group?

How should these codes be used for inpatient documentation and reimbursement?

Which DRGs are related to procedures in the 0591 group?

What specific code would indicate a diagnostic drainage by percutaneous approach?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code group covers drainage procedures of the hemiazygos vein?

What are the approach and device variations listed in this code group?

How should these codes be used for inpatient documentation and reimbursement?

Which DRGs are related to procedures in the 0591 group?

What specific code would indicate a diagnostic drainage by percutaneous approach?

References