I'm confused now. Is there a spec sheet that decodes the Bilstein part number?

The number for the fronts looks familiar...B46-1099-H2.
I usually see B46-1099-H0 for a lifted x, 20% stiffer.

The rear part number is new to me BE3-6422-H0.
Shouldn't it be B46-2126-H0 for a lifted x, 20% stiffer?