0PBK3ZX
Excision Ulna, Right to Diagnostic with No Device, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | P Upper Bones |
| Operation | B Excision |
| Body Part | K Ulna, Right |
| Approach | 3 Percutaneous |
| Device | Z No Device |
| Qualifier | X Diagnostic |
Operation Definition
Cutting out or off, without replacement, a portion of a body part
Procedure Overview
Excision covers cutting out a portion of an upper bone without replacing it, most often to obtain a tissue sample for diagnosis or to remove a tumor, cyst, or damaged segment while leaving the surrounding bone intact. Rib excisions are performed for suspected malignancy or to gain surgical access to the chest, clavicle and scapula excisions address tumors or nonunion fragments, and small excisional biopsies are done on the humerus, forearm bones, or hand bones when imaging shows an indeterminate lesion.
Because only a portion of the bone is taken and the rest of the structure remains, this differs from removing an entire bone or joint segment. The excised tissue is typically sent to pathology, and the remaining bone may need grafting or fixation depending on how much structural support was lost.
Anatomy & Axis Detail
Ulna, Right
The ulna is the medial, stabilizing bone of the forearm, forming the primary hinge component of the elbow at the trochlear notch and articulating distally with the carpus via the triangular fibrocartilage complex region. Partial excision here is performed for lesions such as osteochondromas, enchondromas, or biopsy-confirmed tumors along its shaft or olecranon process, as well as for chronic osteomyelitis requiring debridement of infected cortical bone. Because the ulna anchors the triceps insertion and the medial collateral ligament, excisions near the olecranon must preserve enough bone stock to maintain elbow extension strength and joint stability. Coding depends on whether only a portion of the bone is removed for cutting out a specific lesion, distinguishing this procedure from a full or partial resection performed for other reasons.
Approach: Percutaneous
Percutaneous describes entry by needle or instrument puncture through the skin or mucous membrane to reach the site of the procedure, without cutting the tissue open or using a visualizing scope. It differs from Open in that the site itself is never exposed, and from Percutaneous Endoscopic in that no endoscope is used to see internal structures. Common examples include needle biopsies and injections.
Qualifier: Diagnostic
Applied chiefly to Excision, this qualifier marks that tissue was removed specifically for diagnostic purposes, i.e., a biopsy intended for pathologic evaluation rather than to treat disease. It distinguishes biopsy-type excisions from therapeutic excisions of the same body part, which are coded without this qualifier even though the physical technique may be identical.
Coding & Documentation
Coders need documentation confirming that a portion, not the entirety, of the named bone was cut out, along with the specific bone and, where relevant, whether the procedure was diagnostic. A biopsy that removes only a small sample for pathology still falls under Excision, with a qualifier indicating diagnostic intent.
The most frequent error is selecting Excision when an entire bone or a whole anatomical segment such as the whole clavicle was removed, which instead falls under Resection. Another common issue is failing to code bone grafting or fixation performed immediately afterward as separate procedures when the operative note describes them as distinct steps.