As usual, the most dangerous parts of ObamaCare aren't receiving the scrutiny they deserve—and one of the least examined is a new commission to tell Congress how to control health spending. Democrats are quietly attempting to impose a "global budget" on Medicare, with radical implications for U.S. medicine.

Like most of Europe, the various health bills stipulate that Congress will arbitrarily decide how much to spend on health care for seniors every year—and then invest an unelected board with extraordinary powers to dictate what is covered and how it will be paid for. White House budget director Peter Orszag calls this Medicare commission "critical to our fiscal future" and "one of the most potent reforms."

On that last score, he's right. Prominent health economist Alain Enthoven has likened a global budget to "bombing from 35,000 feet, where you don't see the faces of the people you kill."

As envisioned by the Senate Finance Committee, the commission—all 15 members appointed by the President—would have to meet certain budget targets each year. Starting in 2015, Medicare could not grow more rapidly on a per capita basis than by a measure of inflation. After 2019, it could only grow at the same rate as GDP, plus one percentage point.

The theory is to let technocrats set Medicare payments free from political pressure, as with the military base closing commissions. But that process presented recommendations to Congress for an up-or-down vote. Here, the commission's decisions would go into effect automatically if Congress couldn't agree within six months on different cuts that met the same target. The board's decisions would not be subject to ordinary notice-and-comment rule-making, or even judicial review.

Yet if the goal really is political insulation, then the Medicare Commission is off to a bad start. To avoid a senior revolt, Finance Chairman Max Baucus decided to bar his creation from reducing benefits or raising the eligibility age, which meant that it could only cut costs by tightening Medicare price controls on doctors and hospitals. Doctors and hospitals, naturally, were furious.

So the Montana Democrat bowed and carved out exemptions for such providers, along with hospices and suppliers of medical equipment. Until 2019 the commission will thus only be allowed to attack Medicare Advantage, the program that gives 10 million seniors private insurance choices, and to raise premiums for Medicare prescription drug coverage, which is run by private contractors. Notice a political pattern?

But a decade from now, such limits are off—which also happens to be roughly the time when ObamaCare's spending explodes. The hard budget cap means there is only so much money to be divvied up for care, with no account for demographic changes, such as longer life spans, or for the increasing incidence of diabetes, heart disease and other chronic conditions.

Worse, it makes little room for medical innovations. The commission is mandated to go after "sources of excess cost growth," meaning treatments that are too expensive or whose coverage will boost spending. If researchers find a pricey treatment for Alzheimer's in 2020, that might be banned because it would add new costs and bust the global budget. Or it might decide that "Maybe you're better off not having the surgery, but taking the painkiller," as President Obama put it in June.

In other words, the Medicare commission would come to function much like the National Institute for Health and Clinical Excellence, which rations care in England. Or a similar Washington state board created in 2003 to control costs. Its handiwork isn't pretty.

The Washington commission, called the Health Technology Assessment, is manned by 11 bureaucrats, including a chiropractor and a "naturopath" who focuses on alternative, er, remedies like herbs and massage therapy. They consider the clinical effectiveness but above all the cost of medical procedures and technologies. If they decide something isn't worth the money, then Olympia won't cover it for some 750,000 Medicaid patients, public employees and prisoners.

So far, the commission has banned knee arthroscopy for osteoarthritis, discography for chronic back pain, and implantable infusion pumps for pain not related to cancer. This year, it is targeting such frivolous luxuries as knee replacements, spinal cord stimulation, a specialized autism therapy and MRIs of the abdomen, pelvis or breasts for cancer. It will also rule on routine ultrasounds for pregnancy, which have a "high" efficacy but also a "high" cost.

Currently, the commission is pushing through the most restrictive payment policy in the nation for drug-eluting cardiac stents—simply because bare metal stents are cheaper, even as they result in worse outcomes. If a patient is wheeled into the operating room with chest pains in an emergency, doctors will first have to determine if he's covered by a state plan, then the diameter of his blood vessels and his diabetic condition to decide on the appropriate stent. If they don't, Washington will not reimburse them for "inappropriate care."

If Democrats impose such a commission nationwide, it would constitute a radical change in U.S. health care. The reason that physician discretion—not Washington's cost-minded judgments—is at the core of medicine is that usually there are no "right" answers. The data from large clinical trials produce generic conclusions that rarely apply to individual patients, who have vastly different biologies, response rates to treatments, and often multiple conditions. A breakthrough drug like Herceptin, which is designed for a certain genetic subset of breast-cancer patients, might well be ruled out under such a standardized approach.

It's possible this global budget could become an accounting fiction, like the automatic Medicare cuts Congress currently pretends it will impose on doctors. But health care's fiscal pressures will be even stronger than they are today if ObamaCare passes in anything like its current form. And that is when politicians will want this remote, impersonal and unaccountable central committee to do the inevitable dirty work of denying care.

The only way to take the politics out of health care is to give individuals more power to control medical dollars. And the first step should be not to create even more government spending commitments. The core problem with government-run health care is that it doesn't make decisions in the best interests of patients, but in the best interests of government.

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