I'm not super familiar, but we have all sorts of things! It all comes down to what the US ONC (The Office of the National Coordinator for Health Information Technology) dictates is mandatory to be provided by the electronic health records companies.

Here's what is upcoming in that requirement: https://www.healthit.gov/isa/united-states-core-data-interop...

You might be interested in the Laboratory section?

But in our recent updates (in accordance with new data becoming available in FHIR R4), we have doctor's notes, care plans, goals (some of which are viewable in the original PDF form). Although some of that viewer technology is pretty advanced and wouldn't be supported by an app like ours, for example MRI viewers, personal health data is definitely moving in the right direction for patients!