00P20JZ
Removal Dura Mater to No Qualifier with Synthetic Substitute, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | 0 Central Nervous System and Cranial Nerves |
| Operation | P Removal |
| Body Part | 2 Dura Mater |
| Approach | 0 Open |
| Device | J Synthetic Substitute |
| Qualifier | Z No Qualifier |
Operation Definition
Taking out or off a device from a body part
Procedure Overview
This family covers taking out a device that was previously placed in the brain, spinal cord, or a cranial nerve, such as removing a deep brain stimulator lead, explanting an intrathecal pump catheter, or taking out a subdural monitoring grid once seizure data collection is complete. The device is taken out entirely and not replaced with a new one during the same procedure.
Devices are removed for many reasons: a temporary diagnostic device like a monitoring electrode has served its purpose, a permanent device like a stimulator lead has failed, become infected, or is no longer needed because symptoms have resolved or the patient chooses to discontinue therapy, or the device is being removed as the first step before a different device is implanted in a separate procedure.
Because many of these devices sit close to critical neural structures, removal can carry its own surgical risks, and the operative note typically documents the reason for removal along with confirmation that the device was fully extracted.
Anatomy & Axis Detail
Dura Mater
The dura mater, the tough outermost membrane enclosing the brain and forming the epidural space, is a site where removal applies to material rather than to the membrane's own tissue, such as extracting a subdural or epidural drain, a dural substitute patch that has become infected or displaced, or a foreign body embedded against the dural surface following trauma or prior surgery. Because the dura lies just beneath the skull and directly overlies vulnerable cortical structures, removing material from this space requires care to avoid tearing the membrane or disturbing the underlying brain, particularly when adhesions have formed between the dura and an implanted material over time. This code is distinct from any repair or excision of the dura itself, applying specifically when a device or nonviable material is being taken out of the epidural or subdural space.
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.
Device: Synthetic Substitute
Synthetic Substitute designates a device made from manufactured, non-biologic material, such as mesh or prosthetic components, used to replace or augment a body part. It is distinguished from the two tissue substitute categories by its artificial composition, which carries different considerations for integration and long-term durability than biologic grafts.
Coding & Documentation
This code applies specifically when a device is taken out and no new device of the same type is inserted in its place during that operative episode. Documentation should identify the device removed, its location, and the fact that removal was completed, since a lead that breaks and leaves a fragment behind may require additional notes on what remained.
The most common assignment error is using Removal when a device was actually being exchanged for a new one in the same session, which should instead be coded as Replacement, or reporting Removal and a new Insertion separately when Replacement is the more accurate single code. Coders should also watch for cases where only part of a device system is removed, such as the generator but not the lead, since each component may need to be evaluated against its own body part and device value, and confirm whether the removal is the only procedure performed or is a preliminary step within a larger operative episode that includes reinsertion.