Emergency room visit additional charges for Code 450, Modifier 25 – “Significant, separately identifiable evaluation and management….” Is this legit?

My two kids have each recently had an ER visit to the same Emergency Room (separate dates, separate incidents.) The billing for both visits includes…

View More Emergency room visit additional charges for Code 450, Modifier 25 – “Significant, separately identifiable evaluation and management….” Is this legit?