ICD-10-PCS Billable Code

0QP4X4Z

Removal Acetabulum, Right to No Qualifier with Internal Fixation Device, External Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemQ Lower Bones
OperationP Removal
Body Part4 Acetabulum, Right
ApproachX External
Device4 Internal Fixation Device
QualifierZ No Qualifier

Operation Definition

Taking out or off a device from a body part

Procedure Overview

Removal procedures take out a device that was previously placed in or on a lower bone - hardware such as plates, screws, rods, pins, external fixator components, or spacers used in the pelvis, femur, tibia, fibula, patella, or foot bones. These devices are typically inserted to stabilize a fracture, hold a bone graft, or support a joint during healing, and removal happens once that purpose has been served or if the device is causing a problem.

Reasons for removal vary widely. Hardware may simply be scheduled for extraction after a fracture has healed, especially in children whose growing bones can be irritated by permanent implants. In other cases the device is removed because it has become infected, has loosened, is causing pain from irritating overlying soft tissue, or is interfering with a later procedure such as a joint replacement.

Anatomy & Axis Detail

Acetabulum, Right

The right acetabulum is the cup-shaped socket of the pelvis that articulates with the femoral head to form the hip joint, and it commonly holds screws, cages, or augment hardware placed during acetabular fracture fixation or revision hip arthroplasty. Removal here refers to extracting that previously placed device, a step often needed when converting to total hip replacement, when hardware impinges on the joint, or when an infected implant must come out before reconstruction. Because the acetabulum sits at the convergence of weight-bearing forces and lies near the sciatic nerve and pelvic vasculature, removing embedded hardware requires precise localization, sometimes guided by prior imaging of screw trajectories. Documentation should note laterality and the type of device extracted, keeping this distinct from any reaming or bone resection performed in the same setting.

Approach: External

External approach applies to procedures performed directly on the skin or mucous membrane, or on an accessible body surface, without any instrumentation passing through a puncture or orifice. It covers things like manual reduction of a fracture or excision of a skin lesion. It differs from Via Natural or Artificial Opening in that no internal passage is entered at all, only the exposed surface.

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

Coders assign Removal when documentation confirms a device is being taken out and not replaced with another device during the same operative episode - if a new device goes in at the same site, the procedure is Change or a combination of Removal and another root operation such as Insertion, not Removal alone. The device type and the specific bone it was removed from both need to be identifiable from the operative note. A common error is coding Removal for hardware that is only being adjusted or repositioned rather than fully extracted, or overlooking that the removal of a device is bundled into a broader procedure when substantial additional work, like bone repair, is performed at the same site.

Commonly Confused With

RevisionRevision is the most common point of confusion, since both involve existing hardware; Revision applies when a malfunctioning or displaced device is corrected or adjusted in place rather than taken out entirely.
ChangeChange is distinct because it captures removing a device and inserting a similar one through the same access site in one continuous procedure, most often for external fixation pins, rather than a permanent extraction.
ExtirpationExtirpation is unrelated in intent but sometimes confused when hardware fragments or broken screw pieces are retrieved rather than an intact device.