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

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group 0718 includes procedures performed to bypass lymphatic structures in the right internal mammary region. These ICD-10-PCS codes are used for inpatient documentation when a bypass of the right internal mammary lymphatic vessels or nodes is performed to restore or reroute lymphatic flow. Accurate coding within the ICD-10-PCS 0718 group is essential for proper inpatient reimbursement, as it captures the procedure performed and determines appropriate case mix and payment.

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Lymphatic, Internal Mammary, Right Bypass Procedure Overview

This procedure group includes bypass operations performed on the right internal mammary lymphatic vessels and nodes and targets the lymphatic and hemic systems. Procedures involve creating an alternative route for lymphatic flow around an obstruction or damaged segment. Accurate coding matters for inpatient reimbursement because it documents the specific bypass operation and anatomical site, which affects case mix and payment.

Code Attributes

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

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

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Lymphatic, Internal Mammary, Right Bypass Procedure Overview

Code Attributes

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

When to Use

Use a code from this group when an inpatient procedure creates a bypass of the right internal mammary lymphatic vessels or nodes to bypass obstruction or damaged segments. Codes are assigned when the operative intent and documentation clearly indicate a bypass operation on the right internal mammary lymphatic structures.

ICD-10-PCS Codes

10 rows

ICD-10-PCS Code	Description
07180Z3	Bypass Right Internal Mammary Lymphatic to Peripheral Vein, Open Approach
07180Z4	Bypass Right Internal Mammary Lymphatic to Central Vein, Open Approach
07180Z7	Bypass Right Internal Mammary Lymphatic to Lymphatic, Open Approach
07180ZK	Bypass Right Internal Mammary Lymphatic to Thoracic Duct, Open Approach
07180ZL	Bypass Right Internal Mammary Lymphatic to Cisterna Chyli, Open Approach
07184Z3	Bypass Right Internal Mammary Lymphatic to Peripheral Vein, Percutaneous Endoscopic Approach
07184Z4	Bypass Right Internal Mammary Lymphatic to Central Vein, Percutaneous Endoscopic Approach
07184Z7	Bypass Right Internal Mammary Lymphatic to Lymphatic, Percutaneous Endoscopic Approach
07184ZK	Bypass Right Internal Mammary Lymphatic to Thoracic Duct, Percutaneous Endoscopic Approach
07184ZL	Bypass Right Internal Mammary Lymphatic to Cisterna Chyli, Percutaneous Endoscopic Approach

DRG Codes

12 rows

DRG Code	Description
802	Other O.R. Procedures of the Blood and Blood Forming Organs with MCC
803	Other O.R. Procedures of the Blood and Blood Forming Organs with CC
804	Other O.R. Procedures of the Blood and Blood Forming Organs without CC/MCC
820	Lymphoma and Leukemia with Major O.R. Procedures with MCC
821	Lymphoma and Leukemia with Major O.R. Procedures with CC
822	Lymphoma and Leukemia with Major O.R. Procedures without CC/MCC
826	Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with MCC
827	Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with CC
828	Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures without CC/MCC
907	Other O.R. Procedures for Injuries with MCC

Showing 1–10 of 12

Typical Clinical Scenarios

An adult patient with progressively worsening right-sided axillary and chest wall lymphedema following mastectomy and radiation presents for inpatient surgical management after conservative measures failed. The surgical team performs an open bypass creating an alternative lymphatic drainage channel from the right internal mammary lymphatic vessels directly to a peripheral vein to restore lymphatic outflow and reduce limb and chest wall swelling. This is planned as an operative inpatient procedure to address chronic refractory lymphedema and improve tissue viability. Typical codes: 07180Z3
A middle-aged patient is admitted urgently with an infected, obstructed lymphatic fistula in the right internal mammary region after trauma, with progressive cellulitis and sepsis risk. To reestablish lymphatic drainage and control contamination, surgeons perform an open bypass of the damaged right internal mammary lymphatic vessels to a central vein to divert lymphatic flow away from the injured site and reduce ongoing leakage. The procedure is performed during the inpatient stay because of the acute infectious complication and need for operative source control. Typical codes: 07180Z4
A patient with prior right-sided lymphatic bypass presents weeks later with recurrent lymphatic congestion due to stenosis at the initial anastomosis. During a revision inpatient operation done with endoscopic assistance, surgeons bypass the right internal mammary lymphatic vessels to the thoracic duct to establish a new outflow route and relieve recurrent lymph stasis. The percutaneous endoscopic approach is used to minimize additional soft tissue dissection during the revision procedure. Typical codes: 07184ZK

Related Codes

0710-LYMPHATIC-HEAD-BYPASS

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

0711-RIGHT-NECK-BYPASS

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

0712-LYMPHATIC-LEFT-NECK-BYPASS

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

0713-RIGHT-UPPER-EXTREMITY-BYPASS

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

0714-LEFT-UPPER-EXTREMITY-BYPASS

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

0715-RIGHT-AXILLARY-BYPASS

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

0716-LEFT-AXILLARY-BYPASS

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

0717-LYMPHATIC-THORAX-BYPASS

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

0719-INTERNAL-MAMMARY-LEFT-BYPASS

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

071B-LYMPHATIC-MESENTERIC-BYPASS

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

Showing 1–10 of 18

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

10 rows

ICD-10-PCS Code	Description
07180Z3	Bypass Right Internal Mammary Lymphatic to Peripheral Vein, Open Approach
07180Z4	Bypass Right Internal Mammary Lymphatic to Central Vein, Open Approach
07180Z7	Bypass Right Internal Mammary Lymphatic to Lymphatic, Open Approach
07180ZK	Bypass Right Internal Mammary Lymphatic to Thoracic Duct, Open Approach
07180ZL	Bypass Right Internal Mammary Lymphatic to Cisterna Chyli, Open Approach
07184Z3	Bypass Right Internal Mammary Lymphatic to Peripheral Vein, Percutaneous Endoscopic Approach
07184Z4	Bypass Right Internal Mammary Lymphatic to Central Vein, Percutaneous Endoscopic Approach
07184Z7	Bypass Right Internal Mammary Lymphatic to Lymphatic, Percutaneous Endoscopic Approach
07184ZK	Bypass Right Internal Mammary Lymphatic to Thoracic Duct, Percutaneous Endoscopic Approach
07184ZL	Bypass Right Internal Mammary Lymphatic to Cisterna Chyli, Percutaneous Endoscopic Approach

DRG Codes

12 rows

DRG Code	Description
802	Other O.R. Procedures of the Blood and Blood Forming Organs with MCC
803	Other O.R. Procedures of the Blood and Blood Forming Organs with CC
804	Other O.R. Procedures of the Blood and Blood Forming Organs without CC/MCC
820	Lymphoma and Leukemia with Major O.R. Procedures with MCC
821	Lymphoma and Leukemia with Major O.R. Procedures with CC
822	Lymphoma and Leukemia with Major O.R. Procedures without CC/MCC
826	Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with MCC
827	Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with CC
828	Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures without CC/MCC
907	Other O.R. Procedures for Injuries with MCC

Showing 1–10 of 12

Typical Clinical Scenarios

An adult patient with progressively worsening right-sided axillary and chest wall lymphedema following mastectomy and radiation presents for inpatient surgical management after conservative measures failed. The surgical team performs an open bypass creating an alternative lymphatic drainage channel from the right internal mammary lymphatic vessels directly to a peripheral vein to restore lymphatic outflow and reduce limb and chest wall swelling. This is planned as an operative inpatient procedure to address chronic refractory lymphedema and improve tissue viability. Typical codes: 07180Z3
A middle-aged patient is admitted urgently with an infected, obstructed lymphatic fistula in the right internal mammary region after trauma, with progressive cellulitis and sepsis risk. To reestablish lymphatic drainage and control contamination, surgeons perform an open bypass of the damaged right internal mammary lymphatic vessels to a central vein to divert lymphatic flow away from the injured site and reduce ongoing leakage. The procedure is performed during the inpatient stay because of the acute infectious complication and need for operative source control. Typical codes: 07180Z4
A patient with prior right-sided lymphatic bypass presents weeks later with recurrent lymphatic congestion due to stenosis at the initial anastomosis. During a revision inpatient operation done with endoscopic assistance, surgeons bypass the right internal mammary lymphatic vessels to the thoracic duct to establish a new outflow route and relieve recurrent lymph stasis. The percutaneous endoscopic approach is used to minimize additional soft tissue dissection during the revision procedure. Typical codes: 07184ZK

Related Codes

0710-LYMPHATIC-HEAD-BYPASS

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

0711-RIGHT-NECK-BYPASS

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

0712-LYMPHATIC-LEFT-NECK-BYPASS

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

0713-RIGHT-UPPER-EXTREMITY-BYPASS

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

0714-LEFT-UPPER-EXTREMITY-BYPASS

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

0715-RIGHT-AXILLARY-BYPASS

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

0716-LEFT-AXILLARY-BYPASS

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

0717-LYMPHATIC-THORAX-BYPASS

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

0719-INTERNAL-MAMMARY-LEFT-BYPASS

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

071B-LYMPHATIC-MESENTERIC-BYPASS

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

Showing 1–10 of 18

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 Lymphatic, Internal Mammary, Right: Procedure Code Group Overview

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

Lymphatic, Internal Mammary, Right Bypass Procedure Overview

Code Attributes

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

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

Lymphatic, Internal Mammary, Right Bypass Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which body system and operation does ICD-10-PCS code group 0718 describe?

What specific body part is identified in the 0718 code group?

What approach options are represented among the codes in this group?

What destinations for the bypass are coded within 0718?

How does accurate coding in the 0718 group affect inpatient reimbursement?

References

When to Use

ICD-10-PCS Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which body system and operation does ICD-10-PCS code group 0718 describe?

What specific body part is identified in the 0718 code group?

What approach options are represented among the codes in this group?

What destinations for the bypass are coded within 0718?

How does accurate coding in the 0718 group affect inpatient reimbursement?

References