ICD-10-PCS Billable Code

07V64ZZ

Restriction Lymphatic, Left Axillary to No Qualifier with No Device, Percutaneous Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body System7 Lymphatic and Hemic Systems
OperationV Restriction
Body Part6 Lymphatic, Left Axillary
Approach4 Percutaneous Endoscopic
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Partially closing an orifice or the lumen of a tubular body part

Procedure Overview

Restriction procedures in this body system narrow a duct or vessel without closing it off completely, and the primary clinical use is managing chylous leaks from the thoracic duct or its tributaries. When lymphatic fluid rich in fat is leaking into the chest or abdomen after surgery or trauma, a surgeon can place a clip or suture around the duct to partially constrict it, slowing or stopping the leak while preserving some flow so the lymphatic system is not completely obstructed. This approach is used when a full ligation is not desired or when a partial narrowing is judged sufficient to control the leak.

For the patient, controlling a chylous leak matters because ongoing loss of lymphatic fluid can lead to malnutrition, immune compromise, and prolonged hospitalization, so timely narrowing of the leaking channel is an important part of recovery after chest or abdominal surgery.

Anatomy & Axis Detail

Lymphatic, Left Axillary

On the left side, the axillary lymphatic vessels drain the breast, chest wall, and arm and are commonly disrupted by mastectomy, axillary dissection, or reconstructive procedures involving the left chest. A resulting lymphocele or persistent lymphatic drainage can be addressed by restriction, in which the offending channel is narrowed through ligation, clipping, or percutaneous embolic occlusion rather than being removed outright. Identifying the exact vessel usually requires lymphangiography or blue-dye mapping, since the axilla's lymphatic network includes numerous overlapping collateral pathways that can obscure the true source of leakage. Because this body part is distinct from the axillary lymph nodes, documentation must make clear that the intervention targeted a lymphatic vessel or duct rather than nodal tissue, which would be coded under a separate anatomical grouping.

Approach: Percutaneous Endoscopic

Percutaneous Endoscopic combines a puncture through skin or mucous membrane with insertion of an endoscope to visualize the procedure internally, as in laparoscopic cholecystectomy. It is distinguished from plain Percutaneous by the presence of scope-guided visualization, and from Via Natural or Artificial Opening Endoscopic by its route being a new puncture rather than an existing orifice or stoma.

Coding & Documentation

Coders assign this family when documentation describes narrowing the thoracic duct or another lymphatic channel with a clip, band, or suture without fully occluding it, typically to control a chyle leak. The key documentation detail is the word describing the degree of closure; if the note states the duct was completely ligated or tied off, that points to Occlusion instead. A common mistake is coding Restriction by default for any duct ligation procedure without confirming from the operative report whether the closure was partial or complete.

Commonly Confused With

OcclusionOcclusion is the closest family and is distinguished purely by completeness: full closure of the duct is Occlusion, partial narrowing that leaves some flow is Restriction.
RepairRepair is used instead when the duct wall itself is being sutured closed after a tear without the intent to narrow the lumen for flow control, which is a different clinical goal than restricting chyle leakage.