E946with mastoid cavity obliteration E315, E320 or E322. add
AURAL SURGICAL PROCEDURES · EXCISION
$106.45What this reference tells you
E946 identifies the Ontario insured service described as “with mastoid cavity obliteration E315, E320 or E322. add.” 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.