On August 29, 2007, the Centers for Medicare & Medicaid Services (CMS) published the Final Rule (with comment period) in the Federal Register, updating and making major refinements to the Medicare home health prospective payment system (HH-PPS) for calendar year (CY) 2008.
Under the HH-PPS, Medicare pays home health agencies (HHA) based on a national standardized 60-day episode rate, which is adjusted for case-mix and wage index. To adjust for case-mix, the HH-PPS currently uses 80 category case-mix classifications to assign payments to a home health resource group (HHRG). In the Final Rule, CMS makes a number of refinements to the HH-PPS methodology, including the following:
Case-Mix Model. In the Proposed Rule for CY 2008, CMS proposed refining the case-mix model to reflect different resource costs for early episodes versus later episodes and to expand the case-mix variables. For CY 2008, CMS also proposed a 4-equation case-mix model that recognizes and differentiates payment for episodes based on whether a patient is in an early episode (1st or 2nd episode in a sequence of adjacent episodes) or later episode (the 3rd episode or subsequent episodes in a sequence of adjacent episodes) as well as recognizing whether a patient was a high therapy (14 or more therapy visits) or low therapy (13 or fewer therapy visits) case. In addition, CMS proposed replacing the current 10 visit therapy threshold with therapy thresholds at 6, 14, and 20 visits with graduated payment levels between the thresholds.
In the Final Rule, CMS adopts the case-mix weights and scoring resulting from the 4-equation model with therapy thresholds at 6, 14, and 20 therapy visits and with an early or later episode distinction. CMS also makes changes to certain case-mix variables in the Final Rule. For example, CMS creates M0110 to identify early and later episodes, and excludes M0175 from the case-mix model. Further, CMS includes scores for infected surgical wounds, abscesses, chronic ulcers, gangrene, dysphagia, tracheostomy, and cystostomy. CMS also adds gastrointestinal, pulmonary, cardiac, hypertension, cancer, blood disorders, and affective and other psychoses diagnosis groups, and assigns points for some secondary diagnosis and some combinations of conditions in the same episode.
HHRGs. To adjust for case-mix, HH-PPS currently uses 80 category case-mix classifications to assign patients to a HHRG. In the Final Rule, CMS increases the HHRGs from 80 to 153 in an effort to better capture the actual cost of care.
Market Basket Increase. As part of the Proposed Rule, CMS proposed a home health market basket increase of 2.9 percent for CY 2008. In the Final Rule, CMS adopts a home health market basket increase of 3.0 percent for CY 2008.
Wage Index. In the Proposed Rule, CMS proposed to continue using the pre-floor and pre-classification hospital wage index data to adjust the labor portion of the HH-PPS rates. In the Final Rule, CMS adopts this proposal.
Case-Mix Growth. Under the Social Security Act, CMS may adjust the standard payment amount to eliminate the effect of coding and classification changes that do not reflect changes in case-mix. In the Proposed Rule, CMS identified a nominal change in case-mix of 8.7 percent (i.e., change that is not due to changes in the underlying health of patients). Therefore, CMS proposed a 2.75 percent reduction in the national 60-day episode rate for 3 years starting in CY 2008. However, after publishing the Proposed Rule, CMS updated its analysis and found a nominal change in case-mix of 11.75 percent. Therefore, in the Final Rule, CMS adopts the 2.75 percent reduction in the national 60-day episode rate for 3 years starting in CY 2008, and extends the adjustment period to a 4th year via a 2.71 percent reduction for CY 2011. In the Final Rule, CMS requests public comment on the 2.71 percent reduction for CY 2011 and sets an October 29, 2007 deadline for public comment.
Quality Data Reporting. The Deficit Reduction Act of 2005 provides for a 2 percent reduction in an HHA’s market basket increase if certain quality measure data is not submitted to CMS. For CY 2007, CMS identified 10 required quality measures captured by OASIS data. In the Proposed Rule, CMS proposed adding the following 2 additional quality measures for CY 2008: (1) emergent care for wound infections, deteriorating wound status; and (2) improvement in status of surgical wound. In the Final Rule, CMS adopts the 2 additional quality measures and requires that the 12 quality measures be reported for a full home health market basket increase in CY 2008.
National Episode Rate. For episodes being and ending in CY 2008, the Final Rule sets the national 60-day episode rate at $2,270.32 for CY 2008. This amount reflects the 3.0 percent home health market basket increase, and the 2.75 percent reduction for nominal change in case-mix, for CY 2008.
PEP Adjustment. In the Proposed Rule, CMS did not propose changes to the partial episode payment (PEP) adjustment. Instead, CMS solicited public comments on improving the PEP adjustment. In the Final Rule, the PEP adjustment remains unchanged. However, CMS indicates that it intends to study the public comments, continue public discussion on the issue, and may refine the PEP adjustment in a future rulemaking.
SCIC Adjustment. In the Proposed Rule, CMS proposed eliminating the significant change in condition (SCIC) adjustment. In the Final Rule, CMS adopts this proposal.
LUPA. The low utilization payment adjustment (LUPA) reduces the national standard rate when minimal services are provided during a 60-day episode. LUPAs are episodes with 4 or fewer days. In the Proposed Rule, CMS recognized that initial and only episode LUPAs may not offset the full cost of initial visits. Therefore, in the Final Rule, CMS adopts an increase of $87.93 for LUPA episodes that occur as the only episode or the initial episode during a sequence of adjacent episodes, which will be adjusted annually by the home health market basket.
NRS. Payment for non-routine medical supplies (NRS), which was $49.62 at the onset of the HH-PPS, has been updated yearly as part of the national standardized 60-day episode payment rate. In the Proposed Rule, CMS proposed revising the NRS methodology, and accounting for NRS costs based on 5 severity groups and a national conversion factor. In the Final Rule, CMS adopts a 6 severity group methodology and a national conversion factor of $52.35 for CY 2008.
Outlier Adjustment. The outlier threshold is defined as the 60-day episode payment plus a fixed dollar loss (FDL) amount. The proportion of additional costs paid as outlier payments is referred to as the loss sharing ratio. The FDL ratio and loss sharing ratio are selected so that estimated total outlier adjustments do not exceed 5 percent of total HH-PPS payments. In CY 2007, the FDL ratio is 0.67. In the Proposed Rule, CMS proposed maintaining the FDL ratio at 0.67. However, after further analysis, CMS adopts a FDL ratio of 0.89 in the Final Rule. Therefore, CMS expects that fewer episodes will receive outlier adjustments.
CMS believes that the HH-PPS updates and refinements in the Final Rule will improve the quality and efficiency of care through more accurate payments. CMS also estimates that the updates and refinements to the HH-PPS will result in an additional $20 million in Medicare payments to HHAs in CY 2008.