In UX, which is the main branch for health disciplines?

We're rebuilding our main website and giving more importance to the projects we worked on. Since we're working a lot with health related projects (mainly psychology and neurology), I'm building a taxonomy tree diagram using UX disciplines.

But I'm not sure where to place these health related projects. The closest would be interaction design, but some of those projects are for physical UX and IoT, so they could easily go under Ergonomics or Universal UX. Thus, it's too ambiguous and broad.

Example: we need to add a project for an app that works in its owmn device and uses AI to identify problems in people with Alzheimer. And another that uses only physical objects for autistic people. And another for digital experiences for autistic people. And another that attends people with anxiety.

I understand I could add them to the specific type of user interaction (HCI, physical, IoT, whatever). But on the one hand, I really want this specialization in neuropsychology to be a "selling point." And on the other hand, the level of knowledge they require dives deep into the neuropsychological sciences, far more than just "coding an app."

So the question is: is there a proper UX taxonomy that specifically contains health related projects? And if so, is there some kind of child taxonomies that divide those projects into medical specialties?