The “ET4” error code will be issued and the entire claim will be returned to the physician’s/dentist’s error report if:
a) a claim includes the “OTN” Service Location Indicator code but does not include a valid Virtual Care Program B-code; or
b) a claim includes a Virtual Care Program B-code and the Service Location Indicator code is present but is not “OTN”.
If the claim is for video visit then the claim should be resubmitted with an applicable Virtual Care Program B-code or SLI code set to “OTN”. If the claim is not for a video visit, then the claim should be resubmitted
without the “OTN” SLI code or a Virtual Care Program B-code.
For the instruction on how to add SLI in the claim, see How to Select The Service Location Indicator (SLI)