The business defines it as "meetings, presentations, support, coding, whatever".
Your productivity remains at 100% when you are doing what they want.
I get that you thought you were hired as a coder, and thus measure your productivity by that. That's what I thought too. I ended up doing a lot of support (which is good, but that's another thread). Until I recalibrated my definition of productivity that frustrated me. When I realized that support was productivity I got much less frustrated.