After three weeks and no word from the doc's office, I took it upon myself to call. I spoke with Nurse Betty, who has being vague down to a science.
CIN I -- mild dysplasia (a few cells are abnormal)
CIN II -- moderate to marked dysplasia
CIN III -- severe dysplasia to carcinoma-in-situ (cancer confined to the surface layer of the cervix)
I have all three.