289Other diseases of blood and blood forming organs- RBC disorders: (e.g., erythrocytosis, polycythemia, diseases of the spleen)
Diseases of Blood and Blood-Forming Organs
What this reference tells you
289 is an Ontario diagnostic code describing “Other diseases of blood and blood forming organs- RBC disorders: (e.g., erythrocytosis, polycythemia, diseases of the spleen).” 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.