Medicare Post-Acute Care: Home Health and Skilled Nursing Facility Cost Growth and Proposals for Prospective Payment
Released: 1997-03-04T00:00:00

Letter

Background

Medicare covers up to 100 days of care in a SNF after a beneficiary has been hospitalized for at least 3 days. To qualify for the benefit, the patient must need skilled nursing or therapy on a daily basis. For the first 20 days of SNF care, Medicare pays all the costs, and for the 21st through the 100th day, the beneficiary is responsible for daily coinsurance of $95 in 1997.

To qualify for home health care, a beneficiary must be confined to his or her residence (“homebound”); require part-time or intermittent skilled nursing, physical therapy, or speech therapy; be under the care of a physician; and have the services furnished under a plan of care prescribed and periodically reviewed by a physician. If these conditions are met, Medicare will pay for skilled nursing; physical, occupational, and speech therapy; medical social services; and home health aide visits. Beneficiaries are not liable for any coinsurance or deductibles for these home health services, and there is no limit on the number of visits for which Medicare will pay. for each type of visit (skilled nursing, physical therapy, and so on) but are applied in the aggregate; that is, an agency’s costs over the limit for one type of visit can be offset by costs below the limit for another. Both SNF and home health cost limits are adjusted for differences in wage levels across geographic areas. Also, exemptions from and exceptions to the cost limits are available to SNFs and home health agencies that meet certain conditions.

While the cost-limit provisions of Medicare’s cost reimbursement system for SNFs and home health agencies give some incentives for providers to control the affected costs, these incentives are considered by health financing experts to be relatively weak, especially for providers with costs considerably below their limit. On the other hand, it is generally agreed that prospective payment systems (PPS) give providers increased cost- control incentives. The administration proposes establishing PPSs for SNF and home health care and estimates that Medicare savings exceeding $10 billion would result over the next 5 fiscal years.

SNF and Home Health Cost Growth

The Medicare SNF and home health benefits are two of the fastest growing components of Medicare spending. From 1989 to 1996, Medicare part A SNF expenditures increased over 300 percent from $2.8 billion to $11.3 billion. During the same period, part A expenditures for home health increased from $2.4 billion to $17.7 billion—an increase of over 600 percent. SNF and home health payments currently represent 8.6 percent and 13.5 percent of part A Medicare expenditures, respectively.

At Medicare’s inception in 1966, the home health benefit under part A provided limited posthospital care of up to 100 visits per year after a hospitalization of at least 3 days. In addition, the services could only be provided within 1 year after the patient’s discharge and had to be for the same illness. Part B coverage of home health was limited to 100 visits per year. These restrictions under part A and part B were eliminated by the Omnibus Reconciliation Act of 1980 (ORA, P.L. 96-499), but little immediate effect on Medicare costs occurred. for the SNF and home health benefits that had the effect of liberalizing coverage criteria, thereby making it easier for beneficiaries to obtain SNF and home health coverage. Additionally, the changes prevent HCFA’s claims processing contractors from denying physician-ordered SNF or home health services unless the contractors can supply specific clinical evidence that indicates which particular services should not be covered.

The combination of these legislative and coverage policy changes has had a dramatic effect on utilization of these two benefits in the 1990s, both in terms of the number of beneficiaries receiving services and in the extent of these services. (App. I contains figures that show growth in SNF and home health expenditures in relation to the legislative and policy changes.) For example, ORA 1980 and HCFA’s 1989 home health guideline changes have essentially transformed the home health benefit from one focused on patients needing short-term care after hospitalization to one that serves chronic, long-term care patients as well. The number of beneficiaries receiving home health care more than doubled in the last few years, from 1.7 million in 1989 to about 3.9 million in 1996. During the same period, the average number of visits to home health beneficiaries also more than doubled, from 27 to 72. In a recent report on home health, we found that from 1989 to 1993, the proportion of home health users receiving more than 30 visits increased from 24 percent to 43 percent and those receiving more than 90 visits tripled, from 6 percent to 18 percent, indicating that the program is serving a larger proportion of longer-term patients. Moreover, about a third of beneficiaries receiving home health care did not have a prior hospitalization, another possible indication that chronic care is being provided. their use is done by Medicare. Moreover, SNFs can cite high ancillary service use to justify an exception to routine service cost limits, thereby increasing routine service payments.

Between 1990 and 1996, the number of hospital-based SNFs increased over 80 percent, from 1,145 such agencies to 2,088. Hospitals can benefit from establishing a SNF unit in a number of ways. Hospitals receive a set fee for a patient’s entire hospital stay, based on a patient’s diagnosis related group (DRG). Therefore, the quicker that hospitals discharge a patient into a SNF, the lower that patient’s inpatient hospital care costs are. We found that in 1994, patients with any of 12 DRGs commonly associated with posthospital SNF use had 4 to 21 percent shorter stays in hospitals with SNF units than patients with the same DRGs in hospitals without SNF units. Additionally, by owning a SNF, hospitals can increase their Medicare revenues through receipt of the full DRG payment for patients with shorter lengths of stay and a cost-based payment after the patients are transferred to the SNF.

Rapid growth in SNF and home health expenditures has been accompanied by decreased, rather than increased, funding for program safeguard activities. For example, our March 1996 report found that part A contractor funding for medical review had decreased by almost 50 percent between 1989 and 1995. As a result, while contractors had reviewed over 60 percent of home health claims in fiscal year 1987, their review target had been lowered by 1995 to 3.2 percent of all claims (or even, depending on available resources, to a required minimum of 1 percent). We found that a lack of adequate controls over the home health program, such as little intermediary medical review and limited physician involvement, makes it nearly impossible to know whether the beneficiary receiving home care qualifies for the benefit, needs the care being delivered, or even receives the services being billed to Medicare. Also, because of the small percentage of claims now selected for review, home health agencies that bill for noncovered services are less likely to be identified than was the case 10 years ago. Similarly, the low level of review of SNF services makes it difficult to know whether the recent increase in ancillary use is medically necessary (for example, because patient mix has shifted toward those who need more services) or simply a way for SNFs to get more revenues.

Finally, because relatively few resources are available for auditing end- of-year provider cost reports, HCFA has little ability to identify whether home health agencies or SNFs are charging Medicare for costs unrelated to patient care or other unallowable costs. Because of the lack of adequate program controls, it is quite possible that some of the recent increase in home health and SNF expenditures stems from abusive practices. The Health Insurance Portability and Accountability Act of 1996 (P.L. 104-191), also known as the Kassebaum-Kennedy Act, has increased funding for program safeguards. However, per-claim expenditures will remain below the level in 1989, after adjusting for inflation. We project that, in 2003, payment safeguard spending as authorized by Kassebaum-Kennedy will be just over one-half of the 1989 per-claim level, after adjusting for inflation.

Administration’s Proposals for Prospective Payment Systems

The goal in designing a PPS is to ensure that providers have incentives to control costs and that, at the same time, payments are adequate for efficient providers to furnish needed services and at least recover their costs. If payments are set too high, Medicare will not save money and cost-control incentives can be weak. If payments are set too low, access to and quality of care can suffer.

In designing a PPS, selection of the unit of service for payment purposes is important because the unit used has a strong effect on the incentives providers have for the quantity and quality of services they provide. Taking account of the varying needs of patients for different types of services— routine, ancillary, or all—is also important. A third important factor is the reliability of the cost and utilization data used to compute rates. Good choices for unit of service and cost coverage can be overwhelmed by bad data.

Proposal for a SNF PPS

We understand that the administration will propose a SNF PPS that would pay per diem rates covering all facility cost types and that payments would be adjusted for differences in patient case mix. Such a system is expected to be similar to HCFA’s ongoing SNF PPS demonstration project that is testing the use of per diem rates adjusted for resource need differences using the Resource Utilization Group, version III (RUG-III) patient classification system. This project was recently expanded to include coverage of ancillary costs in the prospective payment rates.

An alternative to the proposal’s choice of a day of care as the unit of service is an episode of care—the entire period of SNF care covered by Medicare. While substantial variation exists in the amount of resources needed to treat beneficiaries with the same conditions when viewed from the day-of-care perspective, even more variation exists at the episode- of-care level. Resource needs are less predictable for episodes of care. Moreover, payment on an episode basis may result in some SNFs inappropriately reducing the number of covered days. Both factors make a day of care the better candidate for a PPS unit of service. Furthermore, the likely patient classification system, RUG-III, is designed for and being tested in a per diem PPS. On the other hand, a day-of-care unit gives few, if any, incentives to control length of stay, so a review process for this purpose would still be needed.

The states and HCFA have a lot of experience with per diem payment methods for nursing homes under the Medicaid program, primarily for routine costs but also, in some cases, for total costs. This experience should prove useful in designing a per diem Medicare PPS.

Regarding the types of costs covered by PPS rates, a major contributor to Medicare’s SNF cost growth has been the increased use of ancillary services, particularly therapy services. This, in turn, means that it is important to give SNFs incentives to control ancillary costs, and including them under PPS is a way to do so. However, adding ancillary costs does increase the variability of costs across patients and place additional importance on the case-mix adjuster to ensure reasonable and adequate rates. audits of a projectable sample of SNF cost reports. The results could then be used to adjust cost report databases to remove the influence of unallowable costs, which would help ensure that inflated costs are not used as the base for PPS rate setting.

Proposal for a Home Health PPS

The summary of the administration’s proposal for a home health PPS is very general, saying only that a PPS for an appropriate unit of service would be established in 1999 using budget neutral rates calculated after reducing expenditures by 15 percent. HCFA estimates that this reduction will result in savings of $4.7 billion over fiscal years 1999 through 2002.

The choice of the unit of service is crucial, and there is limited understanding of the need for and content of home health services to guide that choice. Choosing either a visit or an episode as the unit of service would have implications for both cost control and quality of care, depending on the response of home health agencies. For example, if the unit of service is a visit, agencies could profit by shortening the length of visits. At the same time, agencies could attempt to increase the number of visits, with the net result being higher total costs for Medicare, making the per-visit choice less attractive. If the unit of service is an episode of care over a period of time such as 30 or 100 days, agencies could gain by reducing the number of visits during that period, potentially lowering quality of care. For these reasons, HCFA needs to devise methods to ensure that whatever unit of service is chosen will not lead to increased costs or lower quality of care. If an episode of care is chosen as the unit of service, HCFA would need a method to ensure that beneficiaries receive adequate services and that any reduction in services that can be accounted for by past overprovision of care does not result in windfall profits for agencies. In addition, HCFA would need to be vigilant to ensure that patients meet coverage requirements, because agencies would be rewarded for increasing their caseloads. HCFA is currently testing various PPS methods and patient classification systems for possible use with home health care, and the results of these efforts may shed light on the unit-of-service question.

We have the same concerns about the quality of HCFA’s home health care cost report databases for PPS rate-setting purposes as we do for the SNF database. Again, we believe that adjusting the home health databases, using the results of thorough cost report audits of a projectable sample of agencies, would be wise.

We are also concerned about the appropriateness of using current Medicare data on visit rates to determine payments under a PPS for episodes of care. As we reported in March 1996, controls over the use of home health care are virtually nonexistent. Operation Restore Trust, a joint effort by federal and state agencies in several states to identify fraud and abuse in Medicare and Medicaid, found very high rates of noncompliance with Medicare’s coverage conditions in targeted agencies. For example, in a sample of 740 beneficiaries drawn from 43 home health agencies in Texas and 31 in Louisiana that were selected because of potential problems, some or all of the services received by 39 percent of the beneficiaries were denied. About 70 percent of the denials were because the beneficiary did not meet the homebound definition. Although these are results from agencies suspected of having problems, they illustrate that substantial amounts of noncovered care are likely to be reflected in HCFA’s home health care utilization data. For these reasons, it would also be prudent for HCFA to conduct thorough on-site medical reviews of a projectable sample of agencies to give it a basis to adjust utilization rates for purposes of establishing a PPS.

Consolidated Billing for SNFs

The administration has also announced that it will propose requiring SNFs to bill Medicare for all services provided to their beneficiary residents except for physician and some practitioner services. We support this proposal as we did in a September 1995 letter to you, Mr. Chairman. We and the HHS Inspector General have reported on problems, such as overutilization of supplies, that can arise when suppliers bill separately for services for SNF residents.

A consolidated billing requirement would make it easier for Medicare to identify all the services furnished to residents, which in turn would make it easier to control payments for those services. The requirement would also help prevent duplicate billings for supplies and services and billings for services not actually furnished by suppliers. In effect, outside suppliers would have to make arrangements with SNFs under such a provision so that nursing homes would bill for suppliers’ services and would be financially liable and medically responsible for the care. to work with the Subcommittee and others to help sort out the potential implications of suggested revisions.

This concludes my prepared remarks, and I will be happy to answer any questions.

Contributors

For more information on this testimony, please call William Scanlon on (202) 512-7114 or Thomas Dowdal, Senior Assistant Director, on (202) 512-6588. Patricia Davis also contributed to this statement.

Medicare Skilled Nursing Facility and Home Health Expenditures, 1980-96

The first copy of each GAO report and testimony is free. Additional copies are $2 each. Orders should be sent to the following address, accompanied by a check or money order made out to the Superintendent of Documents, when necessary. VISA and MasterCard credit cards are accepted, also. Orders for 100 or more copies to be mailed to a single address are discounted 25 percent.

U.S. General Accounting Office P.O. Box 6015 Gaithersburg, MD 20884-6015 Room 1100 700 4th St. NW (corner of 4th and G Sts. NW) U.S. General Accounting Office Washington, DC Orders may also be placed by calling (202) 512-6000 or by using fax number (301) 258-4066, or TDD (301) 413-0006.

Each day, GAO issues a list of newly available reports and testimony. To receive facsimile copies of the daily list or any list from the past 30 days, please call (202) 512-6000 using a touchtone phone. A recorded menu will provide information on how to obtain these lists.