Autism level 1 or 2

Hello everyone I’m just wondering since I was diagnosed with autism spectrum disorder my psychologist didn’t mention levels I thought it would be in my diagnosis report but it didn’t mention levels just mention that I’m an individual on the autism spectrum I assume I’m level one because in my feedback session she mentioned that I’m high functioning but I’ve read online that high functioning autism can be level 2 can anyone tell me how to determine what is level 1 and level 2.