Anathema is just a word. The effects are the same as excommunication. The word is no longer commonly used. Excommunication is. However, the new code of 1983 limits excommunication to very specific offenses and to any that the pope declares, which are not covered by the Code. As I always say, pope have excommunicated people because they didn’t like the color of their toothbrush.

They have that much power. There are other penalties that can be imposed by the local bishop, which are not in the Code itself, but are in other legal documents.
We have to remember that the Code of Canon Law is like the Constitution. Just as the Constitution does not cover every possible situation or contain every possible law, neither does the Code of Canon Law. Just as we have laws that are in other books and other legal documents, state constitutions, local ordinances, etc, so too does the Church. So, just as we the average citizen does not know every law in the books, that’s why we need lawyers, because they know where to find the law, so too it is in the Catholic Church.
There seems to be an almost excessive preoccupation with law among lay Catholics these days. While it is certainly good to be informed in both civil and ecclesial law, the concern with legal details that don’t have any impact on my daily life can be a distraction rather than an education. We must be careful not to fall into distractions over things that are not relevant to our spiritual journey.
For example, I’m a religious and I serve in formation work. I certainly need to know all of the ins and outs of ecclesial law governing religious life if I’m going to form future brothers, priests and secular Franciscans. On the flip side, I’m not a diocesan priest or a bishop. The laws the govern the relationship between the diocesan priest and the bishop are not important to me, because they don’t affect me. I read through them a few times when I was a student and put them aside. When someone wants to know something, I can tell them where to find it or I can go to a shelf and pull a book. But it’s not something that I ever think about, because it’s not part of my life.
If I became so concerned about the laws, policies and protocols that govern diocesan priests that I come up with a different question every week, I would have to ask myself if it’s just curiosity or if it’s a distraction in my life.
While we want to cultivate interior discipline, we must be prudent in doing so to avoid inadvertently cultivating hypervigilance and distractions.
Fraternally,
Br. JR, OSF