I was fortunate enough to have found a "[Professional] Co-Dependents Anonymous" meeting in close proximity [same city where I lived/worked at the time] - when I worked as a Case Manager in a Homeless Shelter, a bit over two decades ago. To the best of my knowledge, it was the only "Professional Co-Dependents Anonymous" meeting in our entire state-possibly in all of northern New England. It met during the lunch hour on a weekday, so I suspect most of the participants came from near proximity. I also attended some "Regular" Co-Dependents Anonymous meetings-within about a sixty mile radius, which were scheduled during weekday evenings, or on weekends.
Those were occurring at about the same time the CDC/Kaiser ACE study was going on, But it was also at the time that Co-Dependents Anonymous re-wrote ALL their entire literature in 'the Affirmative'. It was also at the time that "The Alternative Twelve Steps: A guide for Atheists, Agnostics, and Secular Humanists" was published.