⚠️Important: This is currently a beta feature, available to a select group of CHR beta users for testing and feedback. It will be available to more users once the beta period is complete.
You can add Limited Use (LU) codes to a prescription in the CHR for medications that the Ontario Drug Benefit (ODB) program covers under specific clinical criteria. When a medication has LU codes, you select the codes that apply to your patient and they print on the prescription.
Steps
1. Start creating a prescription and select a medication..
2. If LU codes exist for that medication, a Limited Use Codes field appears below the medication name.
3. Click the Limited Use Codes field to view all available codes with their clinical criteria.
4. Select the codes that apply to your patient.
💡 Tip: You can search by typing the code number or part of the criteria text in the field.
5. Click outside the Limited Use Codes field.
6. To remove a code, click the X beside it.
7. To see the full ministry criteria, authorization periods, and the date of the Ontario formulary that the CHR is using, click View code details.
💡Tip: Click the arrow beside the code and code description to see additional details.
8. In the Limited Use Codes window, select or clear the checkboxes as needed, then click Confirm to add the codes to the prescription.
9. Complete the remaining fields as required and click Save.
Once you save the prescription, the LU codes display on the prescription pad and on the PDF prescription as a single line.
📌Notes:
When you renew, modify, or prescribe from a favourite, previously selected LU codes are not automatically included. You must select them again for each new prescription. This ensures that delisted codes cannot accidentally be carried forward to a new prescription.
LU codes come from the Ontario formulary, which the CHR updates regularly. There may be a short delay between a formulary change and its appearing in the CHR. If a code you previously used is no longer listed, the drug may have been delisted from the program. The Limited Use Codes window displays the Ontario formulary date so you can see how current the information is. If the formulary is more than 90 days old, a warning displays.
Created November 13, 2026