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Z824
Z824 – Removal of chronic surface or depth electrodes
OHIP Psychiatric Code — NEUROLOGICAL SURGICAL PROCEDURES · Schedule of Benefits
This service involves the surgical removal of previously implanted chronic surface or depth electrodes. These electrodes are typically implanted for long-term monitoring, such as with N119, or stimulation, as with Z823. This code covers the procedure to explant these devices when they are no longer required.
When to Use
- Use Z824 for the surgical explantation of chronic depth electrodes previously inserted for long-term intracranial monitoring (e.g., following N119).
- Use Z824 when removing chronic surface electrodes that were surgically implanted for stimulation therapy, such as those associated with Z823.
Common Pitfalls
- Do not bill Z824 for the removal of temporary percutaneous leads; this code is strictly for chronic, surgically implanted hardware.
- Avoid billing Z824 in conjunction with the initial implantation code (e.g., Z823) unless the removal is a distinct, separate surgical event from the revision or replacement procedure.
Billing Tips
- Ensure the operative report clearly distinguishes between surface and depth electrodes, as the complexity of removal can vary significantly for audit purposes.
- If the procedure is performed after hours or on a weekend, verify eligibility for E409 or E410 to maximize the procedural fee beyond the base $266.60.
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