ICD-10-PCS Billable Code

04FL3Z0

Fragmentation Femoral Artery, Left to Ultrasonic with No Device, Percutaneous Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body System4 Lower Arteries
OperationF Fragmentation
Body PartL Femoral Artery, Left
Approach3 Percutaneous
DeviceZ No Device
Qualifier0 Ultrasonic

Operation Definition

Breaking solid matter in a body part into pieces

Procedure Overview

Fragmentation procedures on the lower arteries break up hard material sitting inside a vessel below the diaphragm, most often calcified plaque along the wall or a solid clot or embolus lodged in the lumen. Rather than removing the material in one piece, the physician uses mechanical force, ultrasonic energy, or lithotripsy-style shockwaves to shatter it into smaller fragments that can either be aspirated, dissolve, or pass on their own. This is a common step in treating severe peripheral artery disease, where dense calcium deposits in vessels like the femoral or popliteal artery are too hard for a balloon to compress and must be cracked before a stent or angioplasty can open the artery properly.

Patients typically undergo fragmentation because a limb is losing blood supply from a narrowed or blocked artery, and softer techniques alone would not restore flow. It is usually done through a catheter inserted at the groin or wrist, guided by X-ray imaging, and is often paired with additional work in the same session to finish reopening the vessel.

Anatomy & Axis Detail

Femoral Artery, Left

The left femoral artery runs from the inguinal ligament down the thigh and, like its right-sided counterpart, is a major site of atherosclerotic burden affecting walking distance and limb viability. Fragmentation is applied when a calcified or thrombotic lesion is too rigid for balloon angioplasty to modify safely, with devices that mechanically or acoustically break the material apart while leaving it within the arterial lumen. This vessel supplies the thigh musculature and continues as the popliteal artery, so disruption of an obstruction here can meaningfully improve distal flow to the knee and lower leg. Operators often choose this site because of its accessibility and diameter, and records should note that the intervention broke up material in place rather than extracting or replacing the vessel segment.

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.

Qualifier: Ultrasonic

This qualifier indicates use of ultrasonic energy in a procedure, such as an atherectomy device that emulsifies plaque with high-frequency sound waves. It differs from the orbital atherectomy qualifier, which relies on mechanical abrasion instead of acoustic energy, and is chosen when the device technology itself is what distinguishes the procedure coded.

Coding & Documentation

A coder should look for documentation that specifically describes breaking, cracking, or fragmenting solid material - intravascular lithotripsy, rotational or orbital atherectomy devices used to pulverize calcium, or mechanical thrombolysis of an occlusive clot - rather than simply removing or displacing it. The device used and the specific artery treated (by fourth-character body part, such as femoral, popliteal, or anterior tibial) both need to be pulled from the operative note. A frequent error is coding Fragmentation when the physician actually extracted the debris in a defined piece, which belongs under Extirpation instead; another is missing that fragmentation was only the first step and a subsequent Dilation or device placement in the same session needs its own code.

Commonly Confused With

ExtirpationExtirpation is the procedure most often mixed up with Fragmentation - both address unwanted material in the artery, but Extirpation removes it intact while Fragmentation breaks it apart in place.
DilationDilation is also frequently performed right after fragmentation to widen the now-clear vessel, and coders sometimes conflate the two steps into a single code when both were separately documented and both need capture.
RestrictionRestriction, used when a stent or narrowing device is deployed, is a distinct later step that should not be folded into the fragmentation code.