This happened in the United Kingdom.
Note, it used to be considered illegal to use a false diagnosis, and Section had to be done under Safeguarding if the individual did not have an established diagnosis.
In 2018 I was sectioned under a 3/6 month section under the MHA.
Prior to being Sectioned I was arrested for criminal damage and assault. I was not offered a lawyer. Instead a psychiatrist turned up. He sectioned me even though I refused to speak with him.
A second psychiatrist asked me whether I was seeing and/or hearing things which were not there. I stated I was not. Despite this I was forcibly medicated with depot medication.
The first psychiatrist asked me whether I thought violence was a symptom of psychosis. I said no I did not think it was.
I was seen by a SOAD and answered all his questions normally. Medication was not stopped, I was released with a diagnosis in line with the medication.
Throughout the stay there I ate, slept at night, did my laundry and spoke with other patients but generally refused to speak with staff. I was in a good state of health other than a disagreement with the psychiatrist over violence. Refusing the diagnosis was seen as a symptom of the diagnosis.
Other than these incidences I was not spoken with.
I did not take the medication because I do not have the disorder. I was hassled by letters stating they were "concerned about my mental health". When I refused to answer a question about self harm, a letter reported that I had "stopped all medications" despite the fact the medication was not for self harm.
In 2021 I was arrested for assault and released without charge after a lawyer attended.
Shortly after, a psychiatrist demanded to see me at short notice and I tried to have a psychological discussion. The psychiatrist ignored the nature of the discussion in the section papers and had me sectioned for the incorrect diagnosis I was given in 2018. The section issued was a 6 month section. Throughout the stay I behaved normally, again I ate, slept, did my laundry etc. This time, being in any way aggressive or even "straightforward" was seen as a symptom of not being released and I had to literally pretend to be warmer and more animated to get out.
While detained I came across two other persons also given a forced psychiatric depot. Neither of them seemed to have anything wrong with them at all. One of them complained and was not listened to, the individual stated they did not have a mental health problem. The other admitted they did not have the disorder when in conversation, but did not try to argue with the psychiatric team.
Later, the NHS wants to use some sort of translation service to communicate with me because they are too inept and stupid to communicate normally. It takes years of study to become a psychiatrist, surely these doctors ought to also spend their time developing interpersonal skills with which to communicate with patients. I do not want a translation service, I want the diagnosis removed by a different care team.
I am aware of other people having been diagnosed with axis 1 disorders they do not have, usually people with other diagnoses which they later have to 'fight to have rectified'. The excuse is always safeguarding but it used to be considered illegal to do this.
I cannot consider the idea of fighting to get a diagnosis rectified positively if under a care team willing to neglect one in the way above.