ICD-10-PCS Billable Code

07T80ZZ

Resection Lymphatic, Internal Mammary, Right to No Qualifier with No Device, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body System7 Lymphatic and Hemic Systems
OperationT Resection
Body Part8 Lymphatic, Internal Mammary, Right
Approach0 Open
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Cutting out or off, without replacement, all of a body part

Procedure Overview

Resection covers the complete removal of an entire lymphatic or hemic body part, without replacing it, and is one of the more consequential procedure types in this family because it permanently eliminates that structure. The most familiar example is total splenectomy, removing the entire spleen after severe trauma, certain blood disorders, or an enlarged spleen that is failing or at risk of rupture. Other examples include complete thymectomy for thymic tumors or myasthenia gravis, and full lymphadenectomy, where an entire chain or region of lymph nodes is removed, often as part of cancer staging or treatment to prevent disease spread.

Because these organs and nodes support immune defense and fluid balance, patients undergoing resection are usually counseled about the tradeoffs, such as increased infection risk after splenectomy, before the procedure is performed.

Anatomy & Axis Detail

Lymphatic, Internal Mammary, Right

The right internal mammary lymph nodes lie along the internal mammary vessels just lateral to the sternum, deep to the costal cartilages, and drain the medial breast, making them a recognized site of metastasis in breast cancer, particularly for tumors in the medial or central quadrants. Resection of this chain is far less common than axillary dissection and is generally reserved for cases where imaging or sentinel node mapping identifies disease specifically in this basin, since accessing the nodes requires working near the internal mammary artery and vein within the chest wall or through an extension of a mastectomy incision. Because these nodes are anatomically and prognostically distinct from axillary nodes, their involvement is documented separately, and resection here is coded apart from any concurrent axillary or thoracic lymphatic procedure.

Approach: Open

Open approach means the surgeon cuts through skin, mucous membrane, or other tissue layers to physically expose the target site to view before performing the procedure. It gives direct visualization and hands-on access, distinguishing it from Percutaneous approaches where instruments pass through a small puncture without exposing the site. Open is typical for procedures needing wide access, such as most laparotomies.

Coding & Documentation

Documentation must clearly state that the entire body part was removed, not a portion of it, since removing only part of an organ or only some nodes in a chain is coded as Excision rather than Resection. This distinction is one of the most frequent sources of coding errors in this family, especially with lymphadenectomies, where a note describing removal of "regional lymph nodes" needs to specify whether the entire nodal chain or basin was taken versus a sampling of nodes. Coders also need to confirm the specific body part value that matches the region resected, such as spleen versus a named lymph node group, and should check whether any adjacent structures were resected in the same operation, which would require additional codes.

Commonly Confused With

ExcisionResection is most often confused with Excision, where only part of the body part is cut out; the total-versus-partial distinction is the deciding factor.
DetachmentIt is also distinguished from Detachment, which applies to limbs rather than lymphatic structures, and from Extirpation, which removes abnormal matter such as a clot or foreign material rather than the body part itself.