jus civile vs legal code

jus civile and legal code both are nouns.

Word	Noun	Adjective	Verb	Adverb
jus civile	Yes	No	No	No
legal code	Yes	No	No	No

As nouns, legal code is a hypernym of jus civile; that is, legal code is a word with a broader meaning than jus civile:

jus civile: the legal code of ancient Rome; codified under Justinian; the basis for many modern systems of civil law
legal code: a code of laws adopted by a state or nation

jus civile (noun)	legal code (noun)
the legal code of ancient Rome; codified under Justinian; the basis for many modern systems of civil law	a code of laws adopted by a state or nation