Implementation of risk adjustment for Medicare.

Area of Science:

• Health economics
• Healthcare policy
• Medicare administration

Background:

• The Health Care Financing Administration (HCFA) introduced risk adjustment for Medicare capitated organizations in January 2000.
• The Principal Inpatient Diagnostic Cost Group (PIPDCG) method was selected as the risk adjustment system.
• Integration was necessary within the payment structure established by the Balanced Budget Act of 1997 (BBA).

Purpose of the Study:

• To describe the integration of risk adjustment into the Medicare payment system.
• To explain the application of the PIPDCG method under BBA regulations.
• To detail the collection and utilization of fee-for-service (FFS) and health maintenance organization (HMO) data for payment determination.

Main Methods:

• Describing the implementation of the PIPDCG risk adjustment model.
• Analyzing the regulatory framework of the Balanced Budget Act of 1997 (BBA).
• Outlining data collection processes for FFS and HMO encounters.

Main Results:

• Successful integration of the PIPDCG risk adjustment method into Medicare capitated payments.
• Adherence to BBA mandates regarding payment structures.
• Established procedures for using FFS and HMO data in payment calculations.

Conclusions:

• Risk adjustment was effectively incorporated into Medicare payments under the BBA.
• The PIPDCG method and specific data collection strategies support equitable payment determination.
• The described system provides a framework for managing financial risk in Medicare managed care.