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Error code

EPP — Incorrect code for Ontario Works/ODSP eligibility

Wrong income support program

The code is for the wrong program for this patient: Ontario Works or the Ontario Disability Support Program (ODSP).

What to do: Confirm which program the patient was on for the service date, change to that program's code, and resubmit.

Code
EPP
Description
Incorrect code for Ontario Works/ODSP eligibility

Explanation

Updated October 26, 2026

EPP means the code doesn't match the patient's Ontario Works or ODSP eligibility. Use the code for the program the patient is on.

What it means

EPP means the claim used a code for the wrong income support program for this patient: Ontario Works or the Ontario Disability Support Program (ODSP). The claim was rejected.

The Schedule's Appendix F has separate eye examination codes for patients aged 20 to 64: K065 for ODSP recipients and K066 for Ontario Works recipients (page AF1). Appendix F services aren't insured services; the Ministry pays them on behalf of other ministries.

Common causes

  • K065 billed for an Ontario Works patient, or K066 for an ODSP patient
  • The patient changed programs

How to fix it

  1. Confirm which program the patient was on for the service date.
  2. Change the code to the one for that program.
  3. Resubmit.

Don't resubmit if

  • The patient was on neither program on the service date.

How APEX handles it

APEX reads your error reports and remittance advice from MCEDT and lists claims rejected with this code in its Correction Centre for you to correct and resubmit. See how APEX works · Pricing

Related codes: EPS

Sources