388Ear and Mastoid: Wax or cerumen in ear, other disorders of ear and mastoid, tinnitus
Diseases of the Nervous System and Sense Organs
What this reference tells you
388 is an Ontario diagnostic code describing “Ear and Mastoid: Wax or cerumen in ear, other disorders of ear and mastoid, tinnitus.” It supports the diagnosis field of a claim and is distinct from the fee code identifying the service.
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.