In Thomas Santa’s book on scrupulosity, a generic confession is one that, excepting for mortal sins, the scrupulous penitent says something like “I am a sinner; I repent of all my sins,” and they may mention some of the venial sins that they committed. Of course, mortal sins are a whole different thing. If the scrupulous person is aware of truly committing a mortal sin, he must confess it in kind and number. The scrupulous person, it is assumed, would be confessing to a regular confessor who knows him. It is not taking the “easy way out,” but it helps to tame the feelings of fear and anxiety that he did not confess right or that the priest did not understand him. According to this book, an individual who is scrupulous should only confess matters that they “could swear on a stack of bibles that they have definitely sinned.” Because scrupulosity is causing the person to see sin in everything, the generic confession has its place.
Thomas Santa, who is a priest, wrote a book on scrupulosity called “Understanding Scrupulosity.” Some of it is in question and answer form.