This Article "Naige-shoshi" (officials in charge of various affairs inside and outside of Kyoto) was put here to distinguish Shikijikan (a person with both an official rank and corresponding role) from Sankan (a person with an official rank but no corresponding role) and also Bunkan (civil officer) from Bukan (military officer).
内外諸司（職事官・散官及び文官・武官の区別）