M027 – Ligation of external carotid artery - unilateral
OHIP Ophthalmology Code — RESPIRATORY SURGICAL PROCEDURES · Schedule of Benefits
This procedure involves the surgical ligation of the external carotid artery on one side, typically performed to manage severe posterior epistaxis that has not responded to other treatments. The benefit for this procedure includes pre-operative care for 1-2 days prior to surgery and post-operative care for up to two weeks, with the exception of the first two post-operative visits and the day of discharge visit which may be claimed separately. The '#' prefix indicates that for services performed in a hospital, the premises, equipment, supplies, and personnel are funded by the hospital global budget. For services in an ICHSC, these costs are covered by the centre's funding.
When to Use
- Use M027 for the surgical management of intractable posterior epistaxis where endoscopic cauterization or packing has failed.
- Apply this code when performing a unilateral external carotid artery ligation as a distinct procedure, separate from other head and neck surgeries.
Common Pitfalls
- Billing M027 for the first two post-operative visits or the day of discharge, which are explicitly excluded from the 14-day post-operative period coverage.
- Failing to apply the 85% reduction rule when performing bilateral ligation or secondary procedures within the 14-day post-operative window of the initial surgery.
Billing Tips
- Ensure that any additional surgical procedures performed during the same anesthesia session are billed at 85% of their respective fees to comply with the multiple procedure rule.
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