This has been gaining traction in forums for a year or two. It seems to be more accepted in the U.K. as a “girl” manifestation of autism. My daughter has a “classic boy” version of ADHD, but does seem to fit with PDA. But until it is accepted as a real “thing”, there isn’t much you can do about it. In the US they tend to label it as ODD.
I agree with the above poster who mentioned dopamine levels. FWIW my DD doesn’t respond well to SSRI’s (even though anxiety levels seem to be at the root), but has had a lot of success with Strattera which is an NRI, and norepinephrine is the precursor of dopamine. I am also finding a couple of supplements that supposedly help with dopamine levels are helping DD to be less combative.