Affordable Care Act risk adjustment: overview, context, and challenges

Area of Science:

• Health policy
• Health economics
• Insurance regulation

Background:

• The Affordable Care Act (ACA) introduced competitive marketplaces for private health insurance in 2014.
• New market reforms necessitate a risk adjustment program to ensure fair competition and enrollee protection.

Purpose of the Study:

• To describe the goal and methodology of the Department of Health and Human Services (HHS) risk adjustment program.
• To identify key issues and methodological choices in ACA risk adjustment.
• To ensure health insurance plan premiums reflect coverage scope, not enrollee health status.

Main Methods:

• Development of a risk adjustment model to estimate enrollee health risks.
• Implementation of a risk transfer formula to balance payments between health plans.
• Addressing specific ACA issues: new populations, cost/rating factors, and intra-state transfers.

Main Results:

• The HHS risk adjustment methodology aims to equalize plan compensation based on enrollee health mix.
• The methodology separates health status from other factors influencing premiums.
• The risk adjustment model and transfer formula are designed to achieve balanced financial transfers.

Conclusions:

• The ACA risk adjustment program is crucial for mitigating risk selection in individual and small group markets.
• The HHS methodology provides a framework for fair premium setting by accounting for health status differences.
• This approach supports market stability and protects consumers by preventing adverse selection.