05Q10ZZ
Repair Hemiazygos Vein to No Qualifier with No Device, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 5 Upper Veins |
| Operation | Q Repair |
| Body Part | 1 Hemiazygos Vein |
| Approach | 0 Open |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Restoring, to the extent possible, a body part to its normal anatomic structure and function
Procedure Overview
This family covers surgical repair of the veins that drain the arms, shoulders, chest wall, and skull, including the subclavian, axillary, brachial, basilic, cephalic, hand, azygos, hemiazygos, innominate, and intracranial veins. Repair is used when a vein has been cut, torn, punctured, or has developed a leak or fistula that needs to be closed by suturing or other direct means, and no other, more specific procedure (like replacing the vein with a graft or widening it with a stent) applies. Typical scenarios include a vein injured during trauma, a laceration from a misplaced central line or dialysis catheter, or bleeding discovered during an unrelated operation.
Because these veins carry blood back toward the heart at relatively low pressure, many injuries can be managed with direct suture repair rather than a graft, which is why this family exists as a distinct, catch-all restorative option. Patients undergoing this procedure are typically being treated for an acute injury or a complication of another medical intervention rather than a planned elective condition.
Anatomy & Axis Detail
Hemiazygos Vein
The hemiazygos vein courses along the left side of the vertebral column at a lower thoracic level before crossing midline to empty into the azygos system, draining the left posterior intercostal spaces. Injury here is uncommon and typically results from penetrating chest trauma, esophageal or aortic surgery performed in close proximity, or erosion by an adjacent mass. Repair addresses a laceration or defect that has produced hemothorax or ongoing bleeding, and because the vessel lies deep to the descending aorta and esophagus, exposure alone can be technically demanding. Surgeons document the specific segment involved, since the hemiazygos communicates variably with the accessory hemiazygos and azygos veins and its anatomy differs from one patient to the next.
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
Repair is assigned only when documentation shows the surgeon restored the vein's own tissue to its normal structure - for example, "venorrhaphy," "suture repair of laceration," or "closure of iatrogenic venous injury" - without introducing graft material or performing a more specific root operation. The operative note should identify the exact vein involved (since Upper Veins has separate body part values for each named vessel) and describe the technique used to close the defect.
The most common coding error is defaulting to Repair whenever a vein procedure doesn't obviously fit elsewhere, when in fact a more specific root operation is required if the physician actually excised tissue, controlled bleeding through ligation, or patched the vessel with graft material. Coders also miscode the body part by using a generic "upper vein" value instead of the specific named vessel documented, or they miss that Repair is inappropriate when the vein was ligated and divided rather than reconstructed.