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Division Upper Leg Muscle, Left to No Qualifier with No Device, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | K Muscles |
| Operation | 8 Division |
| Body Part | R Upper Leg Muscle, Left |
| Approach | 0 Open |
| Device | Z No Device |
| Qualifier | Z 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, Left
On the left upper leg, division of a thigh muscle, for example a hamstring component or the adductor group, is performed to relieve a contracture restricting knee or hip movement, a procedure common in spasticity management and in correcting long-standing flexion deformities. The surgeon transects the muscle or its tendinous insertion at a chosen level, releasing the tightness without removing the muscle itself, and takes care to identify the sciatic nerve posteriorly or the femoral vessels anteriorly depending on which compartment is entered. Since thigh procedures frequently involve multiple muscles divided in the same operative session to correct a complex deformity, clear documentation of the left-sided muscle and the level of division supports assigning the correct, distinct code for each one.
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
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.