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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 03B0 includes procedures performed to excise portions of arterial structures in the upper arteries. These ICD-10-PCS codes are used for inpatient documentation when a portion of the right internal mammary artery is surgically removed without replacement. Accurate coding within the ICD-10-PCS 03B0 group is essential for proper inpatient reimbursement, as it captures the specific procedure performed and supports clinical documentation accuracy.

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Internal Mammary Artery, Right Excision Procedure Overview

Procedures in this group involve excision of a portion of the right internal mammary artery within the upper arterial system. These operations remove tissue from the specified artery without replacement and are coded in the Medical and Surgical section. Accurate coding of the excision and targeted arterial location is important for inpatient reimbursement and for reflecting the clinical services rendered.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
3	Body System	Upper Arteries
B	Operation	Excision
0	Body Part	Internal Mammary Artery, Right

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

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Internal Mammary Artery, Right Excision Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
3	Body System	Upper Arteries
B	Operation	Excision
0	Body Part	Internal Mammary Artery, Right

When to Use

Use a code from this group when a surgeon surgically excises part of the right internal mammary artery and no replacement tissue or device is implanted. Codes are applied for inpatient reporting to reflect the excision operation on the upper arterial structure.

ICD-10-PCS Codes

6 rows

ICD-10-PCS Code	Description
03B00ZX	Excision of Right Internal Mammary Artery, Open Approach, Diagnostic
03B00ZZ	Excision of Right Internal Mammary Artery, Open Approach
03B03ZX	Excision of Right Internal Mammary Artery, Percutaneous Approach, Diagnostic
03B03ZZ	Excision of Right Internal Mammary Artery, Percutaneous Approach
03B04ZX	Excision of Right Internal Mammary Artery, Percutaneous Endoscopic Approach, Diagnostic
03B04ZZ	Excision of Right Internal Mammary Artery, Percutaneous Endoscopic Approach

DRG Codes

21 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
326	Stomach, Esophageal and Duodenal Procedures with MCC

Showing 1–10 of 21

Typical Clinical Scenarios

An elderly patient with progressive shortness of breath and angina is found on coronary angiography to have an infected or aneurysmal segment of the right internal mammary artery causing hemothorax and hemodynamic instability; the patient is taken urgently to the OR for open excision of the diseased arterial segment to control bleeding and remove infected tissue. Typical codes: 03B00ZZ, 03B00ZX
A middle-aged patient undergoing planned chest wall tumor resection where the tumor encroaches on the right internal mammary artery; during the elective procedure the surgical team excises a portion of the right internal mammary artery without reconstruction to achieve oncologic margins and prevent residual tumor. Typical codes: 03B00ZZ
A postoperative patient who previously had percutaneous chest intervention develops a localized arterial pseudoaneurysm of the right internal mammary artery identified on imaging and refractory to percutaneous measures; a percutaneous or percutaneous endoscopic excision of the arterial segment is performed to remove the pseudoaneurysm. Typical codes: 03B03ZZ, 03B04ZZ

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

03B2-INNOMINATE-ARTERY-EXCISION

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

03B3-SUBCLAVIAN-ARTERY-RIGHT-EXCISION

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

03B4-LEFT-SUBCLAVIAN-ARTERY-EXCISION

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

03B5-AXILLARY-ARTERY-RIGHT-EXCISION

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

03B6-LEFT-AXILLARY-ARTERY-EXCISION

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

03B7-BRACHIAL-ARTERY-RIGHT-EXCISION

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

03B8-LEFT-BRACHIAL-ARTERY-EXCISION

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

03B9-ULNAR-ARTERY-RIGHT-EXCISION

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

03BA-LEFT-ULNAR-ARTERY-EXCISION

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
03B00ZX	Excision of Right Internal Mammary Artery, Open Approach, Diagnostic
03B00ZZ	Excision of Right Internal Mammary Artery, Open Approach
03B03ZX	Excision of Right Internal Mammary Artery, Percutaneous Approach, Diagnostic
03B03ZZ	Excision of Right Internal Mammary Artery, Percutaneous Approach
03B04ZX	Excision of Right Internal Mammary Artery, Percutaneous Endoscopic Approach, Diagnostic
03B04ZZ	Excision of Right Internal Mammary Artery, Percutaneous Endoscopic Approach

DRG Codes

21 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
326	Stomach, Esophageal and Duodenal Procedures with MCC

Showing 1–10 of 21

Typical Clinical Scenarios

An elderly patient with progressive shortness of breath and angina is found on coronary angiography to have an infected or aneurysmal segment of the right internal mammary artery causing hemothorax and hemodynamic instability; the patient is taken urgently to the OR for open excision of the diseased arterial segment to control bleeding and remove infected tissue. Typical codes: 03B00ZZ, 03B00ZX
A middle-aged patient undergoing planned chest wall tumor resection where the tumor encroaches on the right internal mammary artery; during the elective procedure the surgical team excises a portion of the right internal mammary artery without reconstruction to achieve oncologic margins and prevent residual tumor. Typical codes: 03B00ZZ
A postoperative patient who previously had percutaneous chest intervention develops a localized arterial pseudoaneurysm of the right internal mammary artery identified on imaging and refractory to percutaneous measures; a percutaneous or percutaneous endoscopic excision of the arterial segment is performed to remove the pseudoaneurysm. Typical codes: 03B03ZZ, 03B04ZZ

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

03B2-INNOMINATE-ARTERY-EXCISION

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

03B3-SUBCLAVIAN-ARTERY-RIGHT-EXCISION

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

03B4-LEFT-SUBCLAVIAN-ARTERY-EXCISION

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

03B5-AXILLARY-ARTERY-RIGHT-EXCISION

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

03B6-LEFT-AXILLARY-ARTERY-EXCISION

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

03B7-BRACHIAL-ARTERY-RIGHT-EXCISION

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

03B8-LEFT-BRACHIAL-ARTERY-EXCISION

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

03B9-ULNAR-ARTERY-RIGHT-EXCISION

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

03BA-LEFT-ULNAR-ARTERY-EXCISION

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.

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

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Internal Mammary Artery, Right Excision Procedure Overview

Code Attributes

OpenPayer

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

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Internal Mammary Artery, Right Excision 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 Internal Mammary Artery Right: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Internal Mammary Artery Right: Procedure Code Group Overview policy alerts

Internal Mammary Artery, Right Excision Procedure Overview

Code Attributes

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

Sign up for ICD-10-PCS Code For Internal Mammary Artery Right: Procedure Code Group Overview policy alerts

Internal Mammary Artery, Right 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 in the Internal Mammary Artery, Right excision group?

What body system and operation does ICD-10-PCS group 03B0 represent?

When should a procedure in this group be used for inpatient documentation?

How do approach and diagnostic intent affect code selection within 03B0?

Which DRG categories might be associated with procedures coded in 03B0?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS codes are in the Internal Mammary Artery, Right excision group?

What body system and operation does ICD-10-PCS group 03B0 represent?

When should a procedure in this group be used for inpatient documentation?

How do approach and diagnostic intent affect code selection within 03B0?

Which DRG categories might be associated with procedures coded in 03B0?

References