Ethical code and System of rules

Ethical code noun - A system of principles governing morality and acceptable conduct.

System of rules and ethical code are semantically related. In some cases you can use "System of rules" instead a noun phrase "Ethical code".

System of rules noun - A complex of methods or rules governing behavior.

Ethical code and system of rules are semantically related. Sometimes you can replace phrase "Ethical code" with "System of rules", this phrases are similar.