We spend about 2.5 trillion a year. I know 10% (roughly $250 billion) goes to prescription drugs.
What % goes to diagnostics?
What about elective surgery?
What about emergency surgery?
What about preventative care and PCP visits?
I don’t know the answer to the four specific questions you asked, but I did cover a lot of statistics in my blog:
I have a link to a document on elective surgery in part 2 that may answer that question for you. Part 4 gives the amount we pay for pharmaceuticals, in case you want a cite. It is roughly 10%, yes.
I can tell you that we piss away much of it doing surgery and procedures on people who are not going to benefit from them. Say, ruptured aortic anerysm repair on a 85 year old. The futility blows my mind
According to Peter Orszag (budget director) about $700-800 billion in health spending has no benefits, and may actually be harmful since it puts the patient at risk of side effects and other negative consequences.
And that is w/o factoring in the fact that we do expensive, radical procedures on people near death, or that a drug that costs $10 may work as well as the drug that costs $200, or that surgery can be done for 1/6th the cost in India, etc.