New to PowerBI and DAX, Need help with Simplifying Code Please

Hello Everyone, 

I am new to PowerBI and Dax at my workplae and need some assistance simplying this code. Anyhting will help. Thank you!

Backlog =

COUNT(

    Tickets[WORKORDERID]) - CALCULATE(COUNT(Tickets[WORKORDERID])

        , StatusDefinition[STATUSNAME] IN

            {

            "Closed", "Resolved", "Unresolved - No Reply", "Kanban - Project" , "Pending carrier replacement/upgrade." , "pending CCC One bug fix resolution." , "Pending circuit installation." , "Pending Lighthouse dispatch" , "Pending proper procurement approval from manager." , "pending resolution from the vendor." , "pending shipment to you from MetTel" , "pending shipment to your center from the vendor."

            }

    )