0QW344Z
Revision Pelvic Bone, Left to No Qualifier with Internal Fixation Device, Percutaneous Endoscopic Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | Q Lower Bones |
| Operation | W Revision |
| Body Part | 3 Pelvic Bone, Left |
| Approach | 4 Percutaneous Endoscopic |
| Device | 4 Internal Fixation Device |
| Qualifier | Z 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 address a device that was previously implanted in a lower bone - such as a rod, plate, screw, or bone cement construct - when it has shifted position, is malfunctioning, or is otherwise not working as intended. The bone itself is not the primary target; the hardware or material within or against it is.
These procedures are common after orthopedic fixation surgery when follow-up imaging or symptoms reveal that a fixation device has loosened, backed out, broken, or migrated. Surgeons go back in to reposition, tighten, repair, or otherwise correct the existing device to the extent possible, aiming to avoid a full device replacement if the original hardware can still function once adjusted.
Anatomy & Axis Detail
Pelvic Bone, Left
The left pelvic bone encompasses the ilium, ischium, and pubis on that side, serving as the anchor for plates, screws, and reconstruction cages used to stabilize fractures or reconstruct bone lost to tumor resection. Revision here is performed when previously placed hardware has loosened, migrated, or malfunctioned, a scenario that can arise given the pelvis's complex three-dimensional shape and the substantial forces transmitted through it during weight-bearing and gait. Surgeons repositioning or adjusting fixation must account for adjacent structures such as the obturator and iliac vessels and the sciatic nerve as it courses near the greater sciatic notch. As with other Revision procedures, this code applies to correcting a device already in place in the left pelvic bone, not to fresh implantation or complete hardware removal.
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
The documentation needs to describe correction of a device already in place - repositioning a displaced screw, replacing a broken segment of a rod, or repairing a malfunctioning fixation component - rather than removal of the device followed by insertion of a brand-new one. If the surgeon fully swaps out the device rather than fixing the one already present, Removal plus Insertion or Replacement is usually the more accurate combination.
A frequent assignment mistake is coding Revision for a straightforward hardware removal with no correction performed, or for a first-time hardware placement. Coders should also verify the correct body part value reflects the bone where the device sits, since Revision codes are structured around device location rather than the device type itself.