M059unilateral
RESPIRATORY SURGICAL PROCEDURES · ACCESSORY NASAL SINUSES - EXTERNAL OR ENDONASAL APPROACH
$460.20What this reference tells you
M059 identifies the Ontario insured service described as “unilateral.” The listed fee and rules are reference data; the clinical record must support the service actually performed.
Before using this code
Confirm the current Ministry publication, the patient and provider context, the date of service, and documentation supporting the claim. A searchable reference does not establish eligibility or guarantee payment.