kodeks

1. code; set of rules
   Novinari moraju poštovati etički kodeks. — Journalists must follow the code of ethics.
   U firmi postoji strog kodeks oblačenja. — The company has a strict dress code.
2. (historical) codex; ancient manuscript
   Srednjovekovni kodeks čuva se u muzeju. — The medieval codex is kept in a museum.
3. (usually of old codes) legal code; collection of laws
   Justinijanov kodeks je temelj rimskog prava. — Justinian's Code is the foundation of Roman law.

Legal codes in Serbia are usually called zakonik (Krivični zakonik), not kodeks.