Thomas Shey
Legend
Sure. Plenty of RPGs have a single "fight" skill, eg Torchbearer; Prince Valiant (mostly); B/X D&D (no weapon proficiency system).
But I don't know of any RPG that treats surgical and medical specialisations, or academic specialisations, with the same sort of detail that plenty of RPGs seem to treat weapons and weapon training.
Of course I'd argue that's just a general tendency for game systems, if they're going to have any detail in a subsystem, to have it in combat primarily. You have to hunt around to find one that goes into as much detail about almost anything as that, even outside the skills involved. You're more likely to find one that collapses combat than expands anything else--and when you do, its usually something combat adjacent like hacking.