I think these could be true.
Counter hit is just translated as "counter".
"Atemi" is a "catch and counter move" like F-Kohaku's 214A/B/C (MB) and Yuzuriha's 4B (UNIB).
While watching some tournament matches,I usually hear it when a low attack hit.I know "chuudan" means overhead, so I think "kedan"(or "keidan"?) means low. Am I right everyone?