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Correcting bills with duplicate claim errors (Ontario)

⚠️ Important: This is currently a beta feature, available to a few CHR beta users in order to test and provide feedback. It will be available to more users once the beta period is complete.

📌Note: These steps apply only when a connection issue or timeout caused duplicate claims in MDBilling, resulting in error code 35 in the CHR, but only one bill appears in your CHR and the paid claim is not displaying. Do not use these steps if there are two separate duplicate bills in the CHR.

When claims are submitted to MDBilling, connection issues or timeouts can cause you to submit the same bill twice. Even though only one bill appears in your CHR, two claims are created in MDBilling. When the MOH processes both claims, one is paid and the second is rejected because it was already paid.

Since the CHR only shows one bill, it displays the status of the rejected claim - an Adjusted status with error code 35 - instead of showing that the bill was paid.

You can apply a correction to the claim, ensuring the bill accurately reflects its paid status in the CHR. There are two ways to do this:

📌 Note: The preferred method is to use the claim ID from the paid claim in MDBilling, as this will sync the actual paid claim data back to the CHR. If you cannot locate the claim ID, you can manually enter the payment amount instead.

Steps

Correcting bills using the claim ID

1. In MDBilling, locate the paid claim and note its claim ID.

💡Tip: In MDBilling, you see two claims for the same patient and service date. Select the claim with paid status (not the one showing error code 35). Click the Accounting ID to open the claim details. The claim ID is visible in the browser's address bar.

2. From the Insured Payments list, locate the bill with the Adjusted status.

3. Click the Apply Correction icon in the Action column.

📌Note: The Apply Correction icon only appears if the bill is in Adjusted status with error code 35.

4. In the Apply Correction window that opens, in the Claim ID field, enter the claim ID from MDBilling of the claim that was paid.

5. In the Explanation field, enter the reason. For example, timeout or connection error.

6. Click Save and confirm the action.

  • The system validates that the claim ID matches the patient, service date, and billing code.

  • If the validation is successful, the bill status updates to Completed and Paid, and the correct claim ID is recorded.

  • If the validation fails, you see an error message. If this occurs, use the payment amount method instead.

These bill corrections are tracked for audit purposes. View the Transaction Details to see the claim ID before and after the correction and the paid amount. View the Internal Notes to see your entered claim ID and explanation. View the Activity Logs to see who made the correction, when it was made, and what changed.

Correcting bills using the payment amount

1. In MDBilling, locate the claim to identify the payment amount or other details you need for the correction.

2. Open the bill with Adjusted status and error code 35.

3. Click the Apply Correction icon next to the billing item.

📌Note: The Apply Correction icon only appears if the bill is in Adjusted status with error code 35.

3. In the Apply Correction window that opens, in the Payment Amount field, enter the amount that was paid by the MOH.

4. In the Explanation field, enter the MDBilling accounting ID from the paid claim or describe the reason for the correction. For example, timeout or connection error.

5. Click Save and confirm the action.

  • If you entered the full amount owed, the bill status updates to Completed and Paid.

  • If you entered a partial amount, the bill status remains Adjusted but shows the correct paid amount.

These bill corrections are tracked in the Activity Logs so you can see who made the correction, when it was made, and what changed.

Created July 13, 2026

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