0PRK37Z
Replacement Ulna, Right to No Qualifier with Autologous Tissue Substitute, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | P Upper Bones |
| Operation | R Replacement |
| Body Part | K Ulna, Right |
| Approach | 3 Percutaneous |
| Device | 7 Autologous Tissue Substitute |
| Qualifier | Z No Qualifier |
Operation Definition
Putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part
Procedure Overview
Replacement procedures in the upper bones involve removing all or part of a bone in the skull, face, thorax, or upper limb and substituting it with a device or biological material that takes over its structural role. Cranioplasty with a synthetic plate after a skull defect, and prosthetic reconstruction of a portion of the humerus or clavicle following tumor removal, are typical examples.
These procedures are performed when a bone is too damaged, diseased, or absent to be repaired or repositioned, and the patient needs a physical substitute to maintain the shape of the skull or the mechanical function of a limb. The material can be a synthetic implant, such as titanium mesh or bone cement, or biological tissue, such as an allograft.
Anatomy & Axis Detail
Ulna, Right
The ulna is the medial forearm bone that forms the primary hinge articulation with the humerus at the elbow through its olecranon and coronoid processes, while its distal end contributes to wrist stability. Right-sided bone replacement is typically performed for severe olecranon fracture-dislocation with bone loss, tumor resection, or infected nonunion, where a structural graft or bone substitute restores the ulna's length and the sigmoid notch contour needed for proper elbow hinge mechanics. Because the ulna serves as the more fixed member of the forearm rotational unit, restoring its straight alignment is particularly important for radial rotation to function normally afterward. Coders should distinguish reconstruction of ulnar bone stock from elbow joint replacement procedures, which fall under a different body system.
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.
Device: Autologous Tissue Substitute
Autologous Tissue Substitute identifies a device value where material harvested from the patient's own body, such as an autograft, is used to replace or reconstruct a body part. Its defining feature is tissue origin from the patient, setting it apart from Nonautologous Tissue Substitute, sourced from a donor or animal, and Synthetic Substitute, made of manufactured material.
Coding & Documentation
Coding from this family requires documentation that a body part was actually taken out and something physically put in its place, not simply reinforced. The device value must match the material used - synthetic versus autologous versus nonautologous tissue - so operative notes describing the graft source matter for accurate code selection. A recurring error is coding replacement when the native bone was left in place and only augmented, which belongs under supplement instead. Coders should also confirm whether the replaced segment is a full bone or only a portion, since this affects the body part value chosen.