Common Army
In the Austro-Hungarian Common Army (de: Gemeinsame Armee or k.u.k. Armee) there were the OF2-ranks "Regimentsarzt I. Klasse" and "Regimentsarzt II. Klasse" (en: Regiment surgeon 1st class / – 2nd class) until 1918, equivalent to the OF2-rank "Stabsarzt" in Germany. That particular rank was comparable to the "Hauptmann/Captain" OF2-rank as well.