Yes I understand, but how to call them? I was thinking to call them maybe Highest level. I know that epic levels is term from 3e and up and I still don't have my own terms for leveling in 2e but lets try to shape that in words: 1-4 Starting Levels, 5-8 Experienced Levels, 9-14 High Levels, 15-20 Very High Levels, 20-30 Highest Levels, 30+ Divinity (or Immortal) Levels. Ok I think that would be it for me, Maybe words are not so good but at least I think that I got numbers good.
Anyway here is what that article in Wiki said about it and it calls it high level play (above 20):
High-level play (above 20th level) was first introduced in the green-boxed Companion Set for the Basic Set in 1983. Although it was not specifically termed "epic", the rules covered play for characters as high as 25th level. It was quickly followed by the black-boxed Master Set (allowing play up to 36th level) and the gold-boxed Immortals Set (which detailed play beyond 36th level). During this time, what is now called the "First Edition" of the Advanced Dungeons & Dragons (AD&D) game, it had little support for characters above 20th level beyond rules for level advancement.
AD&D Second Edition also limited characters to 20th level, until late in the game's life. In 1996, TSR released Dungeon Master Option: High-Level Campaigns, which covered characters in any high-level game and included rules for characters of levels 21–30.