0NH63SZ
Insertion Temporal Bone, Left to No Qualifier with Hearing Device, Percutaneous Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | N Head and Facial Bones |
| Operation | H Insertion |
| Body Part | 6 Temporal Bone, Left |
| Approach | 3 Percutaneous |
| Device | S Hearing Device |
| Qualifier | Z No Qualifier |
Operation Definition
Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part
Procedure Overview
Insertion procedures place a nonbiological device into or onto a skull or facial bone to monitor, support, or assist a physiological function without replacing any part of the bone itself. Common examples include placing an intracranial pressure monitor through the skull, inserting a bone growth stimulator, or securing a fixation device that stabilizes bone during healing without cutting away or replacing tissue. The device stays behind after the procedure to serve its function, whether that is continuous pressure monitoring, structural support, or another physiological role.
These procedures are common after traumatic brain injury, when clinicians need real-time pressure readings from inside the skull, and in reconstructive or orthopedic contexts where fixation hardware needs to be anchored into facial or cranial bone. Insertion differs from repair or reconstruction procedures because the bone's own structure is not being cut, rebuilt, or replaced, the device is simply being introduced and secured within or against existing bone.
Anatomy & Axis Detail
Temporal Bone, Left
The left temporal bone shares the same intricate anatomy as its right-sided counterpart, containing the left ear's canal and inner ear apparatus along with part of the jaw joint. Devices inserted here, most commonly cochlear implants, bone-anchored hearing aids, or fracture fixation hardware, must be positioned with care around the facial nerve and labyrinthine structures unique to this side. Left-sided hearing loss or trauma dictates the choice of this bone specifically, and surgical planning typically uses CT imaging to map the temporal bone's internal channels before device placement. Because hearing implants are ear-specific, accurate laterality coding is essential to distinguish this procedure from an identical one performed on the right temporal bone.
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: Hearing Device
Hearing Device is the general value used for an implanted hearing device when the record does not specify whether it is a bone conduction device or a single or multiple channel cochlear prosthesis. It functions as the catch-all on this axis, applied when the more specific hearing device subtype is not documented in sufficient detail.
Coding & Documentation
Coders need documentation confirming that a device was put in place and left there, along with the specific type of device, since the seventh-character qualifier for these codes distinguishes between monitoring devices, fixation devices, and other implant types. A frequent error is coding hardware placed during a fracture repair as a separate Insertion when the fixation is actually an integral part of a Reposition or other combined procedure already captured by a different root operation with its own device value; coders should check whether the classification system expects the device captured within the primary procedure's code rather than as a standalone Insertion. Another common mistake is confusing temporary intraoperative instrumentation, which is not coded, with a device intentionally left in place for ongoing function, which is.