0QB40ZZ
Excision Acetabulum, Right to No Qualifier with No Device, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | Q Lower Bones |
| Operation | B Excision |
| Body Part | 4 Acetabulum, Right |
| Approach | 0 Open |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Cutting out or off, without replacement, a portion of a body part
Procedure Overview
Excision procedures on the lower bones remove a portion of a bone in the pelvis, hip, leg, ankle, or foot without replacing what's taken out. Surgeons perform these when a piece of bone needs to come out but the rest of the bone can stay in place - trimming a bone spur pressing on a nerve, taking a wedge sample from a suspicious lesion to send for biopsy, or shaving down a prominent area that's causing pain or skin breakdown.
Because only part of the bone is involved, the surrounding structure typically remains functional. Recovery often centers on protecting the area while it heals rather than rebuilding lost function, though larger excisions near a joint may need a period of limited weight-bearing.
Anatomy & Axis Detail
Acetabulum, Right
The right acetabulum is the cup-shaped socket within the pelvic bone that articulates with the femoral head to form the hip joint, and excision of a portion of it is generally performed to remove a symptomatic bone lesion, address acetabular osteomyelitis, or debride damaged bone in preparation for reconstructive procedures such as revision hip arthroplasty. Because the acetabulum's precise geometry and orientation directly determine hip joint congruency and stability, even limited excisional work here requires meticulous technique to avoid compromising the socket's load-bearing surface or the labrum surrounding it. The acetabulum's deep location within the pelvis, close to major neurovascular structures including the sciatic nerve posteriorly and the obturator neurovascular bundle medially, also makes surgical approach selection an important part of planning. This code reflects cutting out a portion of the bone itself, distinct from procedures involving the hip joint capsule or cartilage.
Approach: Open
Open approach means the surgeon cuts through skin, mucous membrane, or other tissue layers to physically expose the target site to view before performing the procedure. It gives direct visualization and hands-on access, distinguishing it from Percutaneous approaches where instruments pass through a small puncture without exposing the site. Open is typical for procedures needing wide access, such as most laparotomies.
Coding & Documentation
Assign an excision code when the operative note describes cutting out a discrete portion of a lower bone - an exostosis, an osteophyte, a bone biopsy specimen, or margins around a tumor - without inserting a device or graft to replace the missing bone. The note should specify the bone and the general region (e.g., femoral neck, calcaneus) since Lower Bones is subdivided by specific bone. A common assignment error is coding excision when the surgeon actually removed the entire bone or a full bony process, which is resection; another is missing that a biopsy taken via excisional technique still codes as excision even though it's diagnostic rather than therapeutic.