ICD-10-PCS Billable Code

0QN93ZZ

Release Femoral Shaft, Left to No Qualifier with No Device, Percutaneous Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemQ Lower Bones
OperationN Release
Body Part9 Femoral Shaft, Left
Approach3 Percutaneous
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Freeing a body part from an abnormal physical constraint by cutting or by the use of force

Procedure Overview

Release procedures on the lower bones free a bone from something abnormal that is pressing on it, wrapping around it, or holding it in an unnatural position, without cutting into or removing any of the bone itself. The most common example is releasing a nerve or blood vessel that has become trapped by scar tissue, a thickened ligament, or a healed fracture fragment in the pelvis, femur, tibia, fibula, or foot bones. Another frequent scenario is cutting through a fibrous or bony bridge that has fused across a joint space, such as a tarsal coalition in the foot that keeps two bones from moving independently.

These operations are performed to relieve pain, restore movement, or stop ongoing nerve damage. A child with a congenital tarsal coalition may need the abnormal bridge divided so the foot can move normally; an adult with post-traumatic scarring around the fibula may need the area cleared to relieve nerve compression. The bone's own shape is left essentially unchanged - only the constraining tissue is addressed.

Anatomy & Axis Detail

Femoral Shaft, Left

On the left thigh, the femoral shaft spans from below the lesser trochanter to above the condyles and functions as the primary weight-bearing column of the leg, encased by the quadriceps and hamstring musculature and stabilized by the linea aspera ridge where adductor and gluteal fibers attach. When scar tissue, adherent fascia, or heterotopic bone forms along this ridge after fracture repair, infection, or prolonged immobilization, it can bind the shaft to surrounding muscle and blunt hip or knee excursion. Release addresses that binding by dividing the constricting tissue without altering the bone's shape or removing any of it. Documentation should isolate the freed adhesion from any concurrent hardware removal or shaft realignment coded separately.

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.

Coding & Documentation

The coder needs documentation naming the specific bone being freed and clearly identifying what is doing the constraining - scar, adhesion, coalition, or an entrapping band. Operative notes should state that the surrounding restrictive tissue was divided or excised and that the bone itself was not resected or reshaped. A frequent assignment error is defaulting to Division when a true anatomic obstruction is present; Release is used when the goal is freeing the part from something abnormal, while Division applies to cutting into the bone itself without addressing a separate constraining structure. Coders also sometimes miss that the body part value should reflect the bone being released, not the tissue that was cut away.

Commonly Confused With

DivisionDivision is the closest source of confusion, since both can involve cutting bone-adjacent tissue; the distinction is whether an outside constraint is being removed (Release) versus the bone itself being separated with no restraining structure present (Division).
RepairRepair is sometimes miscoded when a release is combined with closure of the surrounding soft tissue; only the release portion, if it is the objective of the procedure, is coded to this root operation.