This twitter thread had some good info from NYC:

https://twitter.com/ArmstrongDrew/status/1242648015959187456

> Another common trend -- 95% of people who have died so far had an underlying health condition ... BUT

> Keep in mind those underlying health conditions include things like diabetes -- which affects about 10% of the U.S. population. Oh, and hypertension -- 29% of adults. And cancer, heart disease, kidney diseae, etc. That's a LOT of people. Not some tiny, sick fragment.

-e- Direct Source ("Daily Syndromic and Case Data Update"): https://www1.nyc.gov/site/doh/covid/covid-19-main.page

Note that preexisting conditions include high blood pressure and diabetes. Turns out quite a lot of people have them.

You probably need a "socialist" country to find someone collecting that data. e.g. : https://www.icnarc.org/