X27535B
Dilation Subclavian Vein, Right to New Technology Group 11 with Intraluminal Device, Cell Impermeable, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | X New Technology |
| Body System | 2 Cardiovascular System |
| Operation | 7 Dilation |
| Body Part | 5 Subclavian Vein, Right |
| Approach | 3 Percutaneous |
| Device | 5 Intraluminal Device, Cell Impermeable |
| Qualifier | B New Technology Group 11 |
Operation Definition
Expanding an orifice or the lumen of a tubular body part
Procedure Overview
This family describes catheter-based procedures that widen a narrowed or blocked blood vessel using next-generation devices, most notably bioresorbable vascular scaffolds that prop the artery open and then gradually dissolve over months rather than remaining as permanent metal, the way a conventional stent does. Patients typically undergo this when a coronary artery has narrowed enough to restrict blood flow to the heart muscle, causing chest pain or increasing the risk of a heart attack.
The appeal of the newer scaffold technology is that once the vessel has healed and remodeled around it, no permanent foreign material remains, which proponents argue may allow the artery to regain more of its natural flexibility and reduce certain long-term complications tied to permanently implanted hardware.
Anatomy & Axis Detail
Subclavian Vein, Right
The right subclavian vein drains blood from the right arm and shoulder into the superior vena cava and is a common site of central venous stenosis, frequently arising from chronic indwelling catheters, pacemaker or defibrillator leads, or prior instrumentation that causes fibrous narrowing of the vein wall. Dilation of this vein using a new-technology balloon device is performed to relieve venous hypertension, arm swelling, or dysfunction of a hemodialysis access circuit that depends on unobstructed central venous outflow. Because the vein lies near the clavicle and the subclavian artery and apex of the lung, catheter-based access and dilation must be carefully guided by imaging to avoid vascular or pleural injury, and documentation should confirm laterality and the specific device technology, since standard balloon angioplasty of this vessel is coded differently from the new-technology approach.
Approach: Percutaneous
In New Technology, Percutaneous describes entry into the body via needle or instrument puncture through the skin or a mucous membrane, without a surgical incision, mirroring the same concept in Medical and Surgical. It is distinguished from Open access, which requires a full incision, and from Percutaneous Endoscopic, which adds visualization through the puncture site.
Device / Substance / Technology: Intraluminal Device, Cell Impermeable
This device value describes an intraluminal implant whose surface is engineered to block cell migration through it, preventing tissue ingrowth that could otherwise compromise the device or surrounding structure. It is distinguished from uncovered or cell-permeable intraluminal devices, which intentionally allow tissue integration. The cell-impermeable property is chosen when isolating a lumen from adjacent tissue response is the clinical goal.
Qualifier: New Technology Group 11
This qualifier designates Group 11, the most recent cohort at the time of its introduction, grouping technologies newly approved for New Technology section reporting in that fiscal year. Like every group value in this axis, it functions as an administrative marker rather than a description of the clinical intervention, which is captured elsewhere in the code. Its main point of confusion is with Group 10, the immediately preceding annual release.
Coding & Documentation
Correct code assignment depends on documentation identifying the specific scaffold or device material, the number of sites or vessels treated, and confirmation that the device qualifies under the applicable New Technology Approval Group rather than being a standard drug-eluting stent. A frequent error is undercounting the number of intraluminal devices deployed, or coding a bioresorbable scaffold placement under the standard Medical and Surgical dilation table simply because the physician's note used generic language like "stent" without specifying the technology.
Commonly Confused With
This family is easily confused with the standard Medical and Surgical coronary artery dilation table, since both describe widening a vessel with a catheter-delivered device. The distinguishing detail is the device itself, a scaffold formally recognized under New Technology criteria versus a conventional metal or drug-eluting stent, so the operative documentation of device type is what separates the two.