What was the body of civil law created for the byzantine empire?

Corpus Iurus Civilis (That's Latin for "Body of Civil Law")

Explanation:

Justinian established the Corpus Juris Civilis (Body of Civil Law), which codified and organized the system of laws for the empire. Justinian ruled as emperor in the Eastern Roman Empire (which we now call the Byzantine Empire) from 527 to 565 CE. The "Justinian Code" of laws codified and preserved Roman law into the Middle Ages. The culture and values of Greco-Roman tradition were embodied in these laws.