03S03ZZ
Reposition Internal Mammary Artery, Right 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 | S Reposition |
| Body Part | 0 Internal Mammary Artery, Right |
| Approach | 3 Percutaneous |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Moving to its normal location, or other suitable location, all or a portion of a body part
Procedure Overview
Reposition procedures on the upper arteries involve surgically moving an artery of the head, neck, or arms from its current position to its normal anatomic location, or to a different position that serves the body better. This is distinct from repairing a damaged vessel or replacing it with new material; the vessel itself is simply relocated. A common example is transposing a subclavian artery during aortic arch reconstruction, or repositioning an aberrant vessel that is compressing a nearby structure such as the trachea or esophagus.
Surgeons turn to this approach when an artery's location is itself the problem, whether from a congenital anomaly present since birth, a traumatic injury that displaced the vessel, or the need to reroute a vessel out of the way during a larger reconstructive operation. Correcting the position can relieve compression on adjacent organs, restore a more functional blood flow pattern, or set up the anatomy needed for a subsequent repair. Patients undergoing this type of surgery are often being treated for anomalies discovered in childhood, though acquired displacement from trauma or prior surgery can bring adult patients to the operating room as well.
Anatomy & Axis Detail
Internal Mammary Artery, Right
The right internal mammary artery runs along the inner chest wall behind the costal cartilages and is best known as the preferred conduit for coronary artery bypass grafting because of its durability and resistance to atherosclerosis. Reposition of this vessel means it is surgically freed from its native bed and moved to a new location while its own origin and blood supply are preserved, distinct from harvesting it entirely for use as a free graft. This is done, for example, when the artery is mobilized and redirected in situ to reach the coronary target, or repositioned during reoperative chest surgery to avoid injury from sternal reentry. Its close proximity to the sternum and pleura makes careful dissection essential, and documentation should reflect that the artery remains attached at its origin rather than being fully excised and reimplanted.
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
Coding a repositioning procedure requires documentation that the artery was detached and moved to a new site without removing tissue or replacing the vessel with graft material; operative notes describing mobilization, transposition, or relocation of a named upper artery are the key indicator. The coder must confirm the specific vessel and body part value from the operative report, since the upper arteries table separates named branches such as the innominate, subclavian, and axillary arteries.
The most frequent assignment error is confusing reposition with bypass or transfer, especially when a vessel is moved and reconnected in the same operative session as a graft procedure; if the surgeon reroutes flow using new conduit rather than simply relocating the native vessel, bypass is the correct root operation instead. Another recurring mistake is selecting reposition when the procedure actually restricts or occludes a vessel that happens to also be moved slightly during clamping, when the primary intent documented by the surgeon was narrowing rather than relocation.