07CL3ZZ
Extirpation Cisterna Chyli to No Qualifier with No Device, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 7 Lymphatic and Hemic Systems |
| Operation | C Extirpation |
| Body Part | L Cisterna Chyli |
| Approach | 3 Percutaneous |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Taking or cutting out solid matter from a body part
Procedure Overview
Extirpation in the lymphatic and hemic systems covers procedures that remove solid material that doesn't belong there, rather than removing a normal part of the body. Typical targets are a blood clot lodged in a lymphatic vessel, calcified debris in a lymph node, or an abscess pocket in the spleen. The material is taken out physically, by cutting, scraping, or suction, but the surrounding lymphatic structure itself is left in place.
This differs from taking a biopsy or removing an organ; the point of extirpation is clearing an obstruction or foreign substance so the vessel or organ can function normally again. It's often used when imaging shows a filling defect or mass that isn't a tumor to be resected but rather clotted or necrotic material to be evacuated. Recovery and follow-up depend on the underlying cause - a clot may signal a clotting disorder that needs separate treatment, while an abscess may require antibiotics afterward.
Anatomy & Axis Detail
Cisterna Chyli
The cisterna chyli is a small, dilated lymphatic reservoir situated in the retroperitoneum near the first or second lumbar vertebra, just to the right of the aorta, where lymph from the lower limbs, pelvis, and abdominal viscera converges before ascending as the thoracic duct. Extirpation of this structure removes solid material obstructing it, such as calcified debris or organized thrombus, and is a rare and technically demanding procedure given the structure's small caliber, variable anatomy, and deep retroperitoneal position immediately adjacent to the aorta and lumbar vertebral bodies. Because the cisterna chyli is not always visualized on standard imaging and its identification often depends on lymphangiography or intraoperative recognition, procedures involving it are uncommon and typically arise in the context of investigating chylous ascites or a suspected lymphatic obstruction. The operative note should specify the abnormal material removed to support this root operation over duct ligation or repair.
Approach: Percutaneous
Percutaneous describes entry by needle or instrument puncture through the skin or mucous membrane to reach the site of the procedure, without cutting the tissue open or using a visualizing scope. It differs from Open in that the site itself is never exposed, and from Percutaneous Endoscopic in that no endoscope is used to see internal structures. Common examples include needle biopsies and injections.
Coding & Documentation
The operative note has to describe removal of abnormal solid matter - clot, calculus, necrotic debris, or similar - from within a lymphatic vessel, node, spleen, thymus, or bone marrow space, with the surrounding structure left intact. Documentation should make clear the material removed is not a piece of a normal body part; imaging or pathology confirming a thrombus or debris rather than tissue helps support the code choice.
The most common assignment error is mixing up extirpation with excision or resection when a coder sees "removed" in the note without checking whether what came out was abnormal matter or a portion of the organ itself. Another frequent slip is coding extirpation when the documentation actually describes drainage of fluid, which belongs under a different root operation, or when the clot removal was incidental to a larger resection, in which case only the more definitive procedure is coded.