ICD-10-PCS Billable Code

0SWB44Z

Revision Hip Joint, Left to No Qualifier with Internal Fixation Device, Percutaneous Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemS Lower Joints
OperationW Revision
Body PartB Hip Joint, Left
Approach4 Percutaneous Endoscopic
Device4 Internal Fixation Device
QualifierZ No Qualifier

Operation Definition

Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device

Procedure Overview

Revision procedures correct a malfunctioning device already implanted in a lower joint, or reposition a device that has shifted out of place, without necessarily removing and replacing the whole implant. Examples include tightening a loosened hip component, adjusting a worn knee liner, or repositioning a dislocated joint implant back into alignment. The reason for surgery is a problem with hardware from an earlier operation rather than new injury to native tissue.

These procedures are often needed years after an initial joint replacement, as components can loosen, wear, or shift with normal use. Surgeons aim to fix the specific mechanical problem while preserving as much of the existing implant and surrounding bone as possible, since more extensive revisions carry greater surgical risk and longer recovery.

Anatomy & Axis Detail

Hip Joint, Left

The left hip joint bears substantial mechanical load as the primary connection between the pelvis and lower limb, and is often the site of a total or partial prosthetic replacement placed to manage advanced arthritis, femoral neck fracture, or avascular necrosis. A revision procedure at this joint corrects a previously implanted device, for instance addressing a loosened femoral stem or a worn liner, without removing the hardware entirely for a new implant. Because the left hip joint is coded as a distinct body part from the right, and because revision differs meaningfully from replacement in terms of whether existing components are corrected versus exchanged, the operative note should clearly document laterality and the specific nature of the hardware problem being addressed.

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.

Device: Internal Fixation Device

Internal fixation device is the general value for hardware such as plates, screws, or rods placed within the body to stabilize bone or joint, used when a more specific configuration is not indicated. It stands in contrast to the named subtypes - Rigid Plate, Intramedullary, Sustained Compression, and Intramedullary Limb Lengthening - which specify how the hardware achieves stabilization.

Coding & Documentation

Documentation needs to identify that an existing device was the target of correction, whether through repositioning, adjustment, or partial component exchange, and that the fix did not amount to a full swap of the entire prosthesis. Notes describing loosening, malposition, or component wear typically support Revision. A common error arises when a full component exchange occurs during a documented revision surgery; if the entire device is replaced, the correct root operation is Replacement, even though the surgeon may call it revision arthroplasty.

Commonly Confused With

ReplacementRevision is most commonly confused with Replacement because both terms appear in the context of a failed prior implant; the difference is whether the existing device is corrected or repositioned versus entirely exchanged.
RemovalIt can also be confused with Removal, since Removal alone takes hardware out without correcting malfunction or reinserting anything in its place.