Well, here's a real example of how well such a system works:
An English woman named Lyndsey Scott (28) died five months after receiving a double lung transplant. The donor had been a smoker for 30 years. This fact had not been given to the recipient or her family prior to the procedure. She died of pneumonia, a direct result of the lung's condition. To be accurate, she suffered from cystic fiberosis which had led to her natural lungs failure.
What's scary is that this is considered normal practice. The director of national transplant services is on record as saying that there was nothing at all wrong with giving such diseased lungs to a transplant patient, without disclosing it and allowing the patient to make a choice. The hospital that carried out the transplant stated that it had followed published national healthcare guidelines to the letter.
Folks, if I needed a double lung transplant and was told the only donor was a 30 year smoker, I'd decline - to go through the hell of a transplant and its aftermath for a handful of months of agony - NO THANKS.
For those of you who think this is just an aberration, an English soldier named Matthew Millington (a Corporal in the Queen's Royal Lancers), veteran of the Iraq War, was given a lung transplant in 2007. The donor had smoked 30-50 hand rolled cigarettes a day. Again, the recipient and his family were not apprised of this until after the transplant had taken place. It wasn't found until shortly after the transplant that the lungs had a cancerous tumor inside. He died in less than a year. The hospital and other officials stated that there wasn't anything wrong with using smoker's lungs, that they had been rigorously screened, and they'd follow the same procedure again. The hospital declared his death to be from complications from transplant surgery, to thwart a lawsuit.
This is what happens when faceless bureaucrats take over healthcare. This is what happens when government officials run healthcare, and decide what care you will and will not qualify for. This is what happens when government agencies reduce our healthcare to a spreadsheet analysis.
Under current transplant guidelines in the US, I do not believe this could happen - for now. When the government is running everything, it not only can, but will happen here. Obamacare - law of the land. This is our future reality ...
Update - I heard this one in the news today. An English gentleman, a cancer patient, was referred to a government agency for approval for a certain treatment. He was denied, and sent back to the doctor. Why? Because government records indicated he was dead, and the agency had no mechanism to correct the mistake.