It is important to remember that the names of psychiatric conditions are completely human made, they are not cut and dried like a type of bone fracture or a contagious disease or the result of a dietary insufficiency, they are based on observation and opinion. There may be empirical indicators, such as a higher or lower amount of certain chemicals that influence mood, but they are adjuncts to the main diagnosis. So often one cannot really say "he/she has type 2 bipolar" or whatever else, with certainty any more than one can categorise with certainty the genre of a song.
I say this with experience of being a carer to someone who was never diagnosed for certain for the whole 40 years that they undoubtedly had a mental health problem. He was sometimes categorised as having a form of schizophrenia, sometimes bi polar, or manic depression as it was called, sometimes variations.
That is not a helpful answer to the primary question I am afraid, but just an observation to bear in mind.