Exactly!
But Blake, rock and snow/ice grades are a bit different.
From Alpinist:
I-II: 1 or 2 pitches near the car, but may need to be avoided during avalanche season.
III: Requires most of a day including the approach, which may require winter travel skills (possible avalanche terrain, placing descent anchors).
IV: A multipitch route at higher altitude or remote location.Multi-hour approaches in serious alpine terrain.
V: A full-day climb in alpine terrain with a long approach, long technical descent, and objective dangers.
VI: A long waterfall with the character of an alpine route; formerly required at least a day to complete, now often done faster. Significant alpine objective hazards.
VII: Under discussion.