E322Modified or radical mastoidectomy
AURAL SURGICAL PROCEDURES · EXCISION
$627.10What this reference tells you
E322 identifies the Ontario insured service described as “Modified or radical mastoidectomy.” 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.