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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 07B8 includes procedures performed to excise portions of lymphatic structures in the internal mammary region on the right side. These ICD-10-PCS codes are used for inpatient documentation when a surgeon removes part of the right internal mammary lymphatic tissue without replacing it. Accurate coding within the ICD-10-PCS 07B8 group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Internal Mammary, Right Excision Procedure Overview

This procedure group includes excision procedures targeting the right internal mammary lymphatic vessels and nodes within the lymphatic and hemic systems. These operations remove a portion of the specified lymphatic tissue without replacement. Accurate coding of these excisions ensures inpatient records reflect the exact surgical action and anatomic site, which supports correct case mix assignment and reimbursement.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
7	Body System	Lymphatic and Hemic Systems
B	Operation	Excision
8	Body Part	Lymphatic, Internal Mammary, Right

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

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Internal Mammary, Right Excision Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
0	Section	Medical and Surgical
7	Body System	Lymphatic and Hemic Systems
B	Operation	Excision
8	Body Part	Lymphatic, Internal Mammary, Right

When to Use

Use a code from this group when a portion of the right internal mammary lymphatic tissue is surgically removed during an inpatient encounter. Select the specific code when the operation is excision and there is no replacement or grafting of the removed tissue.

ICD-10-PCS Codes

6 rows

ICD-10-PCS Code	Description
07B80ZX	Excision of Right Internal Mammary Lymphatic, Open Approach, Diagnostic
07B80ZZ	Excision of Right Internal Mammary Lymphatic, Open Approach
07B83ZX	Excision of Right Internal Mammary Lymphatic, Percutaneous Approach, Diagnostic
07B83ZZ	Excision of Right Internal Mammary Lymphatic, Percutaneous Approach
07B84ZX	Excision of Right Internal Mammary Lymphatic, Percutaneous Endoscopic Approach, Diagnostic
07B84ZZ	Excision of Right Internal Mammary Lymphatic, Percutaneous Endoscopic Approach

DRG Codes

22 rows

DRG Code	Description
040	Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC
041	Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator
042	Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC
163	Major Chest Procedures with MCC
164	Major Chest Procedures with CC
165	Major Chest Procedures without CC/MCC
264	Other Circulatory System O.R. Procedures
515	Other Musculoskeletal System and Connective Tissue O.R. Procedures with MCC
516	Other Musculoskeletal System and Connective Tissue O.R. Procedures with CC
517	Other Musculoskeletal System and Connective Tissue O.R. Procedures without CC/MCC

Showing 1–10 of 22

Typical Clinical Scenarios

An adult patient with newly diagnosed right-sided breast carcinoma undergoes inpatient staging and sentinel lymph node management when preoperative imaging and intraoperative findings indicate involvement of the right internal mammary sentinel nodes. The surgical team performs an open excision of a portion of the right internal mammary lymphatic tissue to obtain diagnostic tissue for pathology and staging; no grafting or replacement is performed. Typical codes: 07B80ZX, 07B80ZZ
A patient presents electively for removal of a suspicious right internal mammary lymph node identified on PET/CT during follow-up of prior thoracic malignancy; the procedure is planned and performed percutaneously under imaging guidance to obtain tissue for definitive diagnosis. The percutaneous excision targets a portion of the right internal mammary lymphatic structures without replacement and is intended to guide further oncology management. Typical codes: 07B83ZX, 07B83ZZ
A hospitalized patient with a previously placed central thoracic port develops a symptomatic right internal mammary lymphatic mass causing chest wall pain and inflammatory changes; after conservative management fails, a minimally invasive percutaneous endoscopic excision is done to remove the affected portion of right internal mammary lymphatic tissue for symptom control and to rule out infection or malignancy. Typical codes: 07B84ZX, 07B84ZZ

Related Codes

07B0-LYMPHATIC-HEAD-EXCISION

ICD-10-PCS Code For Lymphatic Head: Procedure Code Group Overview

07B1-LYMPHATIC-RIGHT-NECK-EXCISION

ICD-10-PCS Code For Lymphatic Right Neck: Procedure Code Group Overview

07B2-LEFT-NECK-EXCISION

ICD-10-PCS Code For Left Neck: Procedure Code Group Overview

07B3-LYMPHATIC-RIGHT-UPPER-EXTREMITY-EXCISION

ICD-10-PCS Code For Lymphatic Right Upper Extremity: Procedure Code Group Overview

07B4-LEFT-UPPER-EXTREMITY-EXCISION

ICD-10-PCS Code For Lymphatic Left Upper Extremity: Procedure Code Group Overview

07B5-RIGHT-AXILLARY-EXCISION

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

07B6-LEFT-AXILLARY-EXCISION

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

07B7-LYMPHATIC-THORAX-EXCISION

ICD-10-PCS Code For Lymphatic, Thorax: Procedure Code Group Overview

07B9-LEFT-INTERNAL-MAMMARY-EXCISION

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

07BB-MESENTERIC-LYMPHATIC-EXCISION

ICD-10-PCS Code For Mesenteric Lymphatic: Procedure Code Group Overview

Showing 1–10 of 20

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
07B80ZX	Excision of Right Internal Mammary Lymphatic, Open Approach, Diagnostic
07B80ZZ	Excision of Right Internal Mammary Lymphatic, Open Approach
07B83ZX	Excision of Right Internal Mammary Lymphatic, Percutaneous Approach, Diagnostic
07B83ZZ	Excision of Right Internal Mammary Lymphatic, Percutaneous Approach
07B84ZX	Excision of Right Internal Mammary Lymphatic, Percutaneous Endoscopic Approach, Diagnostic
07B84ZZ	Excision of Right Internal Mammary Lymphatic, Percutaneous Endoscopic Approach

DRG Codes

22 rows

DRG Code	Description
040	Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC
041	Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator
042	Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC
163	Major Chest Procedures with MCC
164	Major Chest Procedures with CC
165	Major Chest Procedures without CC/MCC
264	Other Circulatory System O.R. Procedures
515	Other Musculoskeletal System and Connective Tissue O.R. Procedures with MCC
516	Other Musculoskeletal System and Connective Tissue O.R. Procedures with CC
517	Other Musculoskeletal System and Connective Tissue O.R. Procedures without CC/MCC

Showing 1–10 of 22

Typical Clinical Scenarios

An adult patient with newly diagnosed right-sided breast carcinoma undergoes inpatient staging and sentinel lymph node management when preoperative imaging and intraoperative findings indicate involvement of the right internal mammary sentinel nodes. The surgical team performs an open excision of a portion of the right internal mammary lymphatic tissue to obtain diagnostic tissue for pathology and staging; no grafting or replacement is performed. Typical codes: 07B80ZX, 07B80ZZ
A patient presents electively for removal of a suspicious right internal mammary lymph node identified on PET/CT during follow-up of prior thoracic malignancy; the procedure is planned and performed percutaneously under imaging guidance to obtain tissue for definitive diagnosis. The percutaneous excision targets a portion of the right internal mammary lymphatic structures without replacement and is intended to guide further oncology management. Typical codes: 07B83ZX, 07B83ZZ
A hospitalized patient with a previously placed central thoracic port develops a symptomatic right internal mammary lymphatic mass causing chest wall pain and inflammatory changes; after conservative management fails, a minimally invasive percutaneous endoscopic excision is done to remove the affected portion of right internal mammary lymphatic tissue for symptom control and to rule out infection or malignancy. Typical codes: 07B84ZX, 07B84ZZ

Related Codes

07B0-LYMPHATIC-HEAD-EXCISION

ICD-10-PCS Code For Lymphatic Head: Procedure Code Group Overview

07B1-LYMPHATIC-RIGHT-NECK-EXCISION

ICD-10-PCS Code For Lymphatic Right Neck: Procedure Code Group Overview

07B2-LEFT-NECK-EXCISION

ICD-10-PCS Code For Left Neck: Procedure Code Group Overview

07B3-LYMPHATIC-RIGHT-UPPER-EXTREMITY-EXCISION

ICD-10-PCS Code For Lymphatic Right Upper Extremity: Procedure Code Group Overview

07B4-LEFT-UPPER-EXTREMITY-EXCISION

ICD-10-PCS Code For Lymphatic Left Upper Extremity: Procedure Code Group Overview

07B5-RIGHT-AXILLARY-EXCISION

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

07B6-LEFT-AXILLARY-EXCISION

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

07B7-LYMPHATIC-THORAX-EXCISION

ICD-10-PCS Code For Lymphatic, Thorax: Procedure Code Group Overview

07B9-LEFT-INTERNAL-MAMMARY-EXCISION

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

07BB-MESENTERIC-LYMPHATIC-EXCISION

ICD-10-PCS Code For Mesenteric Lymphatic: Procedure Code Group Overview

Showing 1–10 of 20

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 Internal Mammary, Right: Procedure Code Group Overview

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

Internal Mammary, Right Excision Procedure Overview

Code Attributes

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

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

Internal Mammary, Right Excision Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in ICD-10-PCS code group 07B8?

What is the primary operation type and body system for codes in 07B8?

How do approach designations differ among the codes in this group?

Why is accurate coding within ICD-10-PCS 07B8 important for inpatient records?

Which DRG categories may relate to procedures coded in 07B8?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which procedures are included in ICD-10-PCS code group 07B8?

What is the primary operation type and body system for codes in 07B8?

How do approach designations differ among the codes in this group?

Why is accurate coding within ICD-10-PCS 07B8 important for inpatient records?

Which DRG categories may relate to procedures coded in 07B8?

References