AI Medicare Advantage Upcoding

Abstract

The steep rise of artificial intelligence (AI) use in healthcare finance has brought about a major change in risk adjustment and reimbursement mechanisms under Medicare Advantage (MA) programs. AI, based predictive systems are now very commonly used to extract patient records for the assignment of Hierarchical Condition Category (HCC) codes, which in turn results in systematic inflation of risk scores and thus higher government reimbursements. The practice of algorithmic upcoding, as it is often called, constitutes a major risk for the financial viability of public healthcare systems and the Medicare trust fund's ability to continue operating over the long term. In this paper, we suggest an integrated analytical framework that links predictive modelling, healthcare economic analysis, and policy modelling in order to formally define the trade, off between AI predictive accuracy and payment distortion. Through the development of mathematical models, we connect AI, based HCC prediction, risk score calculation, and reimbursement mechanisms to measure the extent of the fiscal distortion effects resulting from algorithmic optimization. The findings reveal the existence of a structural dilemma between the accuracy of the model and the interpretability of the payment; they also show how AI performance, driven optimization can unintentionally increase the economic incentives for systematic upcoding. In addition, we propose a policy, aware simulation framework that helps to assess regulatory measures taken by the Centers for Medicare and Medicaid Services (CMS) under different enforcement and transparency conditions. The study provides a formal foundation for designing regulation-aware AI systems in healthcare finance and proposes a CMS reimbursement reform framework that integrates explainability, auditability, and economic accountability as core design principles. This work represents the first unified AI–economics–policy model for understanding and mitigating algorithmic upcoding in Medicare Advantage systems.

Ähnliche Arbeiten