@TheOnlyKoiInAPondOfGoldfish I am not incorrect.
The fact that someone has a medical appointment is not sensitive data.
The fact that someone has a medical appointment to treat their infertility is sensitive data.
You can link to internet sites all you want and interpret the words of those internet sites as you wish, but I'm telling you, as a school governor and a teacher, that revealing to a class, accidentally or otherwise, that a child has a medical or counselling appointment, is not a breach of data under GDPR guidelines and neither does it need to be reported to the ICO.
No sensitive, protected information about that child that would have a detrimental effect on their welfare or safety has been revealed. No, it's not pleasant for the child to have that information that they would rather have not shared with their classmates revealed, of course, and as I have said several times, the teacher absolutely should be reprimanded for it. But on a legal level, revealing generalised information like this would not be considered a breach of sensitive data. It's not specific enough to be classed as sensitive.
You can disagree with me all you like, and claim all sorts of professional qualifications and training in this area to disprove me. That's fine. I'm not interested in getting into an argument about it. This whole area is obviously open to interpretation. I'm just saying what I know to be true according to the training I've been given.