ICD-10-PCS Billable Code

X27C35B

Dilation Basilic Vein, Left to New Technology Group 11 with Intraluminal Device, Cell Impermeable, Percutaneous Approach

Procedural Specifications

Clinical Axis Detail Definition
SectionX New Technology
Body System2 Cardiovascular System
Operation7 Dilation
Body PartC Basilic Vein, Left
Approach3 Percutaneous
Device5 Intraluminal Device, Cell Impermeable
QualifierB 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

Basilic Vein, Left

The left basilic vein travels the medial aspect of the forearm and arm before joining the deep venous system, and its size and straight course make it a preferred vessel for surgically created arteriovenous fistulas used in hemodialysis. Once matured or transposed for access, the vein is subjected to repeated needle punctures and altered flow dynamics that predispose it to intimal hyperplasia and stenosis, most often near the arterial anastomosis or at cannulation zones. Dilation of the left basilic vein is therefore usually performed to maintain or restore adequate flow through an existing dialysis fistula rather than to treat an incidental finding, and successful outcomes are judged by the vein's ability to sustain the flow rates dialysis requires. Documentation should reflect laterality precisely, since fistula planning and outcomes tracking depend on the specific limb and vessel treated.

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.