physician_level_up_chance_effect

physician_level_up_chance_effect = {
	if = {
		limit = {
			is_alive = yes
			NAND = {
				has_trait = lifestyle_physician
				has_trait_xp = {
					trait = lifestyle_physician
					value >= 100
				}
			}
		}
		random = {
			chance = $CHANCE$
			physician_lifestyle_rank_up_effect = yes

			#Used by physician_rank_up_tooltip_effect, to be shown in treatment outcome...
			set_variable = { name = physician_level_up value = flag:physician days = 15 }

			#...or in notification
			if = {
				limit = {
					liege ?= { this != scope:sick_character }
				}
				liege = {
					send_interface_message = { #Should be feed message, because it's not hugely important
						type = event_court_physician_good
						title = physician_level_up_chance_effect.t
						left_icon = scope:physician
						physician_rank_up_tooltip_effect = yes
					}
				}
			}
		}
	}
}

As written in game/common/scripted_effects/20_health_effects.txt.