All codes
X446
X446 – Multislice sequence
OHIP Laboratory Code — MAGNETIC RESONANCE IMAGING (MRI) · Schedule of Benefits
This service is for a multislice sequence Magnetic Resonance Imaging (MRI) of one or both breasts. According to the payment rules, this service is not eligible for payment when used as guidance for a breast biopsy.
When to Use
- Use X446 for diagnostic breast MRI imaging in patients with high-risk screening indications, such as BRCA mutation carriers or those with a strong family history.
- Use X446 for the evaluation of occult primary breast cancer or for assessing the extent of disease in patients with newly diagnosed breast cancer when standard imaging is inconclusive.
Common Pitfalls
- Billing X446 for MRI-guided breast biopsy procedures is a direct violation of the Schedule of Benefits and will result in claim rejection or recovery.
- Attempting to bill X446 in conjunction with other breast imaging codes for the same diagnostic session can trigger audit flags if the clinical necessity for the multislice sequence is not clearly distinct.
Billing Tips
- Ensure the referral source is explicitly documented as a physician, nurse practitioner, or oral maxillofacial surgeon to meet the mandatory referral requirement for MRI services.
Provider Fee$0.00
Non-Anaesthetist Fee$73.35
Effective: April 1, 2025
Category
F. Magnetic Resonance Imaging (MRI)
Subcategory
MAGNETIC RESONANCE IMAGING (MRI)
Service Type
Diagnostic
Code Classes
Magnetic Resonance Imaging (MRI)
Referral RequiredFrom: Physician, NursePractitioner, OralMaxillofacialSurgeon
Ready to bill this code?
SnapBill makes OHIP billing simple — auto-filled codes, validation, and batch submission.