Most that would die in the street would have an underlying condition, like ague or bleeding or even old age, since most people that starve would try to do something about it.

If you're sick you might not be able to. If you find a job or charity successfully you've averted the death. If you tried to steal and fail you'll get on the executed list, or if you got wounded but got away, you'll be on the bleeding list, or if you succeed then you dont die on the street.

I imagine those six would have the "died of unknown causes" phrase attached to them in modern times.