What command can I use to determine (boolean) if the new record row in my form is selected? I'm using DoCmd.RunCommand acCmdRecordsGoToNew, and I only want this code to run if the current record is not the new record row.
As mentioned - the NewRecord property of the form is what you're describing.
However I'd still ask what operation you're performing in the Current event because you're on a new record?
Bearing in mind that the Current event is only navigating to a record. You've not dirtied it yet so edits aren't particularly appropriate.
Default values, however, certainly are.