According to the Code on AllMovie

Before he became a dignified general-purpose actor, Captain E. H. Calvert was a busy silent film director. Made in 1916, Calvert's According to the Code was set during the Civil War, which had proven to be good "box office fare" the year previous by Griffith's Birth of a Nation. Lewis Stone plays a courageous warrior who is willing to sacrifice both life and honor to protect his loved ones. The climax uses that old chestnut of a defense attorney unknowingly defending his own parent from a murder charge. According to the Code features director Calvert in a pivotal supporting role.