eRx - Technical Details
The information below includes technical information about Electronic Prescriptions. Also see eRx Troubleshooting or eRx FAQ.
How are users with multiple locations or providers tracked?
There are three identifiers that eRx uses to divide information logically: AccountID, SiteID, and LocationID. For each unique AccountID and SiteID pair, a unique database is created at eRx. Open Dental always sends a SiteID equal to 1, therefore unique eRx databases will only be created for each unique AccountID. ERx Provider IDs (Open Dental ProvNums) must be unique for each eRx AccountID, and to meet this requirement, Open Dental automatically creates a unique AccountID for each logical database the first time an electronic prescription is sent from that database. The AccountID format is the Open Dental customer account number followed by a dash followed by 5 random alpha-numeric characters. For example, 1234-T2d28. There is no way for the user to edit the AccountID. Open Dental always sends a LocationID of "0" if Clinics are not being used. Otherwise, the ClinicNum is sent for the LocationID. Within the eRx interface, the user can view information for a single location or for all locations.
Prior to version 13.2.21, disabling eRx removed the existing Account ID, and if re-enabled later, a new Account ID would be generated. In later versions, the Account ID is only disabled, not removed.
The eRx database will be LexiComp if and only if the first eRx click occurs when the Open Dental version is 15.4 or greater. Otherwise the eRx database will be FBD.
All providers that share the same NPI number are treated as a single provider for eRx purposes.
GUID values: When e-prescriptions are copied into the Chart module (when Chart module is refreshed), corresponding prescriptions and medications in Open Dental are identified by a GUID value supplied by eRx. The GUID is how Open Dental determines if a record has already been created.