ICD-10-PCS Billable Code

0K8Q4ZZ

Division Upper Leg Muscle, Right to No Qualifier with No Device, Percutaneous Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemK Muscles
Operation8 Division
Body PartQ Upper Leg Muscle, Right
Approach4 Percutaneous Endoscopic
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Cutting into a body part, without draining fluids and/or gases from the body part, in order to separate or transect a body part

Procedure Overview

Division procedures on the muscles involve cutting into muscle tissue to separate or transect it, without draining any fluid or gas in the process. The classic example is a tenotomy-style release, where a tight or contracted muscle is cut across its fibers to relieve spasticity or correct a deformity, as seen in some clubfoot or cerebral palsy treatments.

The goal is mechanical: changing how the muscle functions by interrupting its continuity, not removing any part of it. Nothing is taken out of the body during a pure division procedure, and the cut ends are typically left to heal in a new, often lengthened, position.

These procedures are frequently used alongside orthopedic corrections for contractures, where releasing a shortened muscle allows a joint to move through a fuller range of motion.

Anatomy & Axis Detail

Upper Leg Muscle, Right

Division of the right upper leg muscle addresses one of the large thigh muscles, such as the rectus femoris, hamstrings, or adductor longus, and is most often performed to release a contracture limiting knee extension or hip motion, frequently in the context of cerebral palsy, spasticity following neurologic injury, or post-traumatic scarring. The muscle is cut across its fibers or at a tendinous portion without excising tissue, lengthening the effective muscle-tendon unit and improving joint alignment, while the surgeon protects the femoral or sciatic neurovascular structures that run along the thigh depending on the compartment involved. Because the thigh contains several named muscles crossing both the hip and knee, the operative note should specify which muscle was divided to ensure correct body part coding.

Approach: Percutaneous Endoscopic

Percutaneous Endoscopic combines a puncture through skin or mucous membrane with insertion of an endoscope to visualize the procedure internally, as in laparoscopic cholecystectomy. It is distinguished from plain Percutaneous by the presence of scope-guided visualization, and from Via Natural or Artificial Opening Endoscopic by its route being a new puncture rather than an existing orifice or stoma.

Coding & Documentation

The note should describe cutting or transecting the muscle to separate it, with no mention of removing tissue or draining fluid, since either of those findings would point to a different root operation. The specific muscle and the reason for the release, such as contracture or spasticity, support the code selection.

A common mistake is coding Division when the surgeon actually excised a strip of muscle or fascia, which should be Excision instead. Coders also sometimes confuse a myotomy performed to drain an abscess, which is Drainage, with a myotomy performed purely to cut and separate the muscle.

Commonly Confused With

ReleaseRelease is the procedure most often confused with Division, and the distinguishing question is whether the objective was to free the muscle from surrounding constraining tissue, which is Release, versus cutting across the muscle itself to separate it, which is Division.
DrainageDrainage looks similar procedurally when an incision is made into muscle, but Drainage is defined by taking fluid or gas out, so any myotomy done to evacuate an abscess or hematoma falls there instead of under Division.