XNSP0HB
Reposition Pelvic Bone, Left to New Technology Group 11 with Internal Fixation Device, Bone-Density-Specific Thread and Porosity Pattern, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | X New Technology |
| Body System | N Bones |
| Operation | S Reposition |
| Body Part | P Pelvic Bone, Left |
| Approach | 0 Open |
| Device | H Internal Fixation Device, Bone-Density-Specific Thread and Porosity Pattern |
| Qualifier | B New Technology Group 11 |
Operation Definition
Moving to its normal location, or other suitable location, all or a portion of a body part
Procedure Overview
Reposition procedures in this family move a bone that has shifted out of its correct alignment back to where it belongs, using a device technology advanced enough to warrant separate tracking from conventional realignment hardware. The best-known example is a magnetically controlled growing rod system used in children with progressive spinal deformity, where the rod can be lengthened gradually from outside the body without repeat open surgery.
This approach is chosen for young patients whose scoliosis or other spinal curvature is still worsening as they grow, since traditional rods would require frequent surgical lengthenings under anesthesia. Instead, an external magnet adjusts the implanted rod in a clinic visit, and the underlying procedure code captures the surgical placement and the correction of bone position that the device achieves over time.
Anatomy & Axis Detail
Pelvic Bone, Left
On the left side, the pelvic bone integrates the ilium, ischium, and pubis into the structure that transmits load from the spine to the lower limb through the hip joint, and its orientation directly determines acetabular coverage and leg length. When deformity from trauma, dysplasia, or a prior procedure disrupts this alignment, technology-assisted repositioning offers more precise, image-guided correction of the bone's position than conventional manual techniques, which is significant given how closely the pelvis relates to the sciatic nerve, iliac vessels, and pelvic viscera. Documentation should identify the pelvic bone as the target structure, distinct from the hip joint, and note the specific guidance or robotic system used to achieve the corrected alignment.
Approach: Open
Open approach in New Technology denotes access to the target site through a surgical incision that exposes the body part directly to view and instrumentation. It stands apart from percutaneous and endoscopic approaches, which achieve access through small punctures or existing openings rather than a deliberate surgical opening of tissue.
Device / Substance / Technology: Internal Fixation Device, Bone-Density-Specific Thread and Porosity Pattern
This device designation covers internal fixation hardware whose screw threads and porous coating are engineered to match a patient's bone mineral density, improving purchase in osteoporotic or compromised bone compared with a uniform-thread standard implant. It is reported under New Technology because the density-matched thread and porosity pattern represent a distinct manufacturing approach rather than a generic fixation device. It differs from lattice-patterned fixation devices, which vary porosity for ingrowth rather than density matching.
Qualifier: New Technology Group 11
This qualifier designates Group 11, the most recent cohort at the time of its introduction, grouping technologies newly approved for New Technology section reporting in that fiscal year. Like every group value in this axis, it functions as an administrative marker rather than a description of the clinical intervention, which is captured elsewhere in the code. Its main point of confusion is with Group 10, the immediately preceding annual release.
Coding & Documentation
Coders should look for documentation identifying the specific device system by name, since the New Technology designation depends on which product was implanted, not just on the fact that a rod was placed. The note should also describe the bone segment being moved back into anatomic alignment, distinguishing the initial implantation encounter from later outpatient adjustment visits, which are typically not separately coded to this family.
A common error is coding every rod-lengthening visit as a new Reposition procedure; most adjustment sessions are noninvasive magnet-driven and fall outside inpatient procedural coding entirely. Another pitfall is missing the New Technology code altogether because the case was coded solely from the spinal fusion or instrumentation codes without recognizing the distinct device category.
Commonly Confused With
This family is frequently confused with standard Reposition procedures done with conventional growing rods or standard spinal instrumentation, where the difference is entirely the technology used, not the clinical intent. It also overlaps conceptually with Insertion procedures for monitoring devices, but Reposition specifically captures correction of the bone's position, while Insertion applies to appliances that assist or monitor without relocating the bone itself.