ICD-10-PCS Billable Code

0NQT0ZZ

Repair Mandible, Right to No Qualifier with No Device, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemN Head and Facial Bones
OperationQ Repair
Body PartT Mandible, Right
Approach0 Open
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Restoring, to the extent possible, a body part to its normal anatomic structure and function

Procedure Overview

Repair procedures for the head and facial bones restore a bone to its normal anatomic structure and function when no other root operation more precisely describes the objective, and this family is essentially a default category used when a defect does not fit cleanly into reconstruction using a device, fusion, or another defined operation. It covers work such as closing a small bony defect, correcting a minor malformation, or fixing an unintended structural problem discovered during another procedure.

Patients may need this after trauma that left a bone fragment malpositioned, after a congenital anomaly affecting facial symmetry, or when a surgeon encounters an incidental defect while operating for another reason and corrects it in the same setting. Because it is a catch-all root operation, the specific clinical scenarios vary widely from one case to the next.

Anatomy & Axis Detail

Mandible, Right

The right mandible is the lower jawbone, a single mobile bone that articulates with the skull at the temporomandibular joint and supports the lower teeth while forming the chin and jawline contour. Its prominent, mobile position makes it the most commonly fractured facial bone, with the right body, angle, or condylar region frequently affected by trauma. Repair on the right side is coded when the surgeon restores normal bony alignment or closes a soft-tissue defect, such as suturing torn periosteum or mucosa over a reduced fracture, without applying plates, screws, wires, or grafts, which would be captured by a different root operation. Because mandibular alignment directly affects bite and jaw function, surgeons take particular care to restore proper occlusion even in limited repair procedures.

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

Coders should reach for this family only after ruling out every other root operation that might better describe the documented work, since Repair applies by default rather than by first choice. The note should describe restoring form or function without inserting a device, removing the whole body part, or performing one of the other defined operations. The most common mistake is overusing Repair as a catch-all when the documentation actually supports a more specific root operation, or conversely under-coding a repair that was performed incidentally alongside a more prominent procedure and left out of the final code set.

Commonly Confused With

ReplacementRepair is most often confused with Replacement, since both can restore appearance or function to a bone; the difference is that Replacement always involves putting in biological or synthetic material to take the place of the body part, while Repair fixes the existing bone without substituting new material for it.
ReleaseIt is also confused with Release, distinguished by whether a constraint is being freed versus a structural defect being fixed.