The north ridge is a documented alpine route on Východná Vysoká and is generally considered more serious than the normal south-side line. It follows a prominent ridge with sustained exposure and route-finding demands. The climbing character is mixed, with rock steps and possible snow or ice depending on conditions. It is not a trekking route and requires proper mountaineering experience and equipment. I am not confident enough to provide verified published figures for gain, length, or times, so those fields are omitted.
Route Outline
Approach from the northern side of the High Tatras
Foot of the north ridge -> climb the ridge line
Ridge crest -> continue over exposed rock and mixed steps
Summit of Východná Vysoká -> descend by the same line or an established descent route