989Adverse Effects: Of other chemicals (e.g., lead, pesticides, and venomous bites)
Accidents, Poisonings and Violence
What this reference tells you
989 is an Ontario diagnostic code describing “Adverse Effects: Of other chemicals (e.g., lead, pesticides, and venomous bites).” 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.