The full collection survives only in a single early medieval manuscript now in Berlin, termed the Codex Lugdunensis.
Some historians, such as Elisabeth Magnou-Nortier, think they are church forgeries; others, such as Olivier Huck, find them genuine.
[2] Recent work has tended to suggest that they are essentially genuine but may have been edited, perhaps as part of preparations for the Second Council of Mâcon in 582.
[3] The standard edition is Theodosiani libri XVI cum Constitutionibus Sirmondianis et Leges Novellae ad Theodosianum pertinentes, edited by T. Mommsen and P. M. Meyer, in 2 volumes in Berlin in1905.
The English language version is The Theodosian Code and Novels and the Sirmondian Constitutions.