Do doctors outside the UK have secret codes?
We used to use FLK in the US as well. Probably the most classic is "Gomer," and they aren't so much code as jargon (professional shortcuts for the sake of time-saving). Now, the US pretty well has been forced to stop being descriptive, and medical notes are much less informative than they used to be. Now, instead of a two- or three-minute note, we spend ten or twenty minutes on computer data entry, which gives the "coders" and billing department everything they want, but does little to convey medical information. Of course, patients often get a copy of their records these days as well, and that's another reason our notes have become less colorful. Being from the southern US, I even have a bit of a lexicon specific to that region. A good example is DFO for a syncopal episode (in southern US dialect, "he done fell out").