How do I fix OHIP error code TM1?

Check your submissions and Remittance Advice for the original claim. If the original was paid, nothing more is needed. If this was a different service, correct the claim so it is clearly distinct (date, code) and resubmit. If the service date is on or after December 1, 2022, bill it under the virtual care rules instead: the Appendix J code plus K300A or K301A, or A101A/A102A, with no OTN service location indicator.

When shouldn't I resubmit a TM1 claim?

The original claim was paid. A second claim would duplicate it.

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Error code

TM1 — Duplicate telemedicine claim for same patient

Q: What does OHIP error code TM1 mean?

TM1 means a telemedicine claim for the same patient and service was already submitted. Check for a duplicate before doing anything else.

Duplicate telemedicine claim

OHIP already has a telemedicine claim on file for the same patient and service, so this one was rejected.

What to do: Find the original claim on your remittance advice; if it was paid, don't resubmit.

Code: TM1
Description: Duplicate telemedicine claim for same patient

Explanation

Updated October 26, 2026

TM1 means a telemedicine claim for the same patient and service was already submitted. Check for a duplicate before doing anything else.

What it means

TM1 ("Duplicate Telemedicine Claim, Same patient") means OHIP rejected the claim because it matches a telemedicine claim already on file for the same patient.

TM codes belong to the Ministry's telemedicine error codes (ET1 to ET5 and TM1 to TM8), which were tied to the former telemedicine program. For services on or after December 1, 2022, the virtual care funding framework replaced it: the 'OTN' service location indicator was discontinued (claims using it reject with V73) and OVCP/telemedicine B-prefix codes reject with A3E. Virtual care is now billed with the in-person code plus the K300A (video) or K301A (telephone) modality indicator, or A101A/A102A for limited virtual care.

Common causes

The same telemedicine claim was sent twice
A corrected claim was sent while the original was still on file
Two physicians in the same group billed the same encounter

How to fix it

Check your submissions and Remittance Advice for the original claim.
If the original was paid, nothing more is needed.
If this was a different service, correct the claim so it is clearly distinct (date, code) and resubmit. If the service date is on or after December 1, 2022, bill it under the virtual care rules instead: the Appendix J code plus K300A or K301A, or A101A/A102A, with no OTN service location indicator.

Don't resubmit if

The original claim was paid. A second claim would duplicate it.

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: TM5, TM4, A34