Best case scenario, and this is still a stretch, is that Facebook could be guilty of slander if they describe you has suicidal and that description becomes known to a third party without your consent.
"If an entity does not meet the definition of a covered entity or business associate, it does not have to comply with the HIPAA Rules."
[0] - https://www.hhs.gov/hipaa/for-professionals/covered-entities...
Sneaky suspicion: consent is given upon account registration.
It doesn't matter. Once you surrender data to Facebook it is theirs to do whatever they want with. That is the disclosure. There is no gray area. If you don't want Facebook having that information then don't give it to them.
> What if it's in Google docs instead?
If you didn't put it there than somebody has violated your privacy or violated HIPAA.
(Like me talking that I'm type 2 diabetic?)
For example, if you run into your physician in public, and say, "Hi Doc. Have you gotten my test results back yet?" you're the one pointing out that she's your doctor, not her. If she, unprompted, said something about your test results to you, she'd have violated HIPAA.
It's your privacy to waive as you please.
HIPAA does, however, have a section explicitly governing the privacy of patient medical information, under Title II, generally known as "The Privacy Rule".
EDIT: Tone and specificity.
This is a reflection of the way they’ve chosen to go about things - no doubt in response to past kerfuffles - rather than an actual legal obligation on fb’s analysis of public materials.
HIPAA regs aren’t hidden from the public. Peruse at your leisure.