03C13ZZ
Extirpation Internal Mammary Artery, Left to No Qualifier with No Device, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 3 Upper Arteries |
| Operation | C Extirpation |
| Body Part | 1 Internal Mammary Artery, Left |
| 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 procedures on the upper arteries remove solid matter that does not belong in the vessel, most commonly blood clots, atherosclerotic plaque, or embolic debris obstructing flow through arteries of the chest, neck, shoulder, and arm. This is typically performed urgently when a clot or embolus is cutting off circulation to the brain, arm, or hand, causing pain, numbness, weakness, or threatening tissue loss.
The technique can be open, through a surgical incision that exposes the artery directly, or percutaneous, using a catheter threaded through the vascular system to retrieve or suction out the obstructing material. Because the arteries feeding the arms and neck also supply the brain in several cases, such as the carotid and vertebral origins, timely extirpation can be critical to preventing stroke or permanent limb damage.
Anatomy & Axis Detail
Internal Mammary Artery, Left
The left internal mammary artery is the preferred conduit for grafting to the left anterior descending coronary artery, making unobstructed flow through this vessel clinically critical for patients with prior or planned bypass surgery. Extirpation involves removing an embolus, thrombus, or atherosclerotic debris from within the arterial lumen without cutting out any part of the vessel wall, most commonly performed percutaneously with a catheter-based retrieval or aspiration device. Because occlusion of this specific artery can compromise a coronary graft or the anterior chest wall's blood supply, timely clearance is often urgent, and the operative record should clearly distinguish work on the native left internal mammary artery from any coronary bypass graft procedure performed using it, since the two are coded under different body systems despite anatomic overlap.
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
A code from this family is supported when the documentation describes removal of an abnormal solid substance, such as thrombus, embolus, or calcified plaque, from within an artery, using instruments, suction, or a retrieval device passed to the site. The coder needs to identify the specific artery and confirm whether the approach was open or percutaneous, since this affects the approach character even though the root operation stays the same.
A common mistake is coding a thrombectomy or embolectomy as Excision because tissue was technically cut during the access incision, when the actual objective and root operation is removal of the clot itself. Another frequent issue is failing to code an accompanying angioplasty or stent placement separately when the procedure note describes both clot removal and a subsequent intervention to keep the vessel open, since these represent distinct root operations performed in the same session.