If I get cancer, the health insurance costs are super high.
Yes. That's "the value of health".
If I get instantly decapitated in an accident, the health insurance costs aren't terribly high.
Yes. That's "the value of life". Though it doesn't know publicly what the actual dollar amount is, society has set a value on human life. That's reflected in what it costs whoever is considered responsible when they die.
In both cases, however, the 'loss of value' would be similar.
Human life does not have absolute value. That should be obvious. We do not protect all human life equally, QED. Your value depends on who is doing the [e]valuation (depending on the sense you prefer, with a nod to the sibling comment.) The value of your life to you is only relevant to you, and so in general it is of little interest to society. The value of your life to e.g. the military would be based on how much it would cost to train you, and/or your replacement. Your value to your fellow citizen is based on how much benefit they derive from your existence, less how much it costs them to keep you alive. And so on. The value of a human life is almost entirely subjective, and it's not the same from the viewpoint of any two people.
So, like I said, the insurance companies have the most honest evaluation of the value of a human life, in dollars, because they know what it costs them. Of course, they are also highly motivated to influence the value of the human life in dollars, for obvious reasons.