Vida
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Co-authored-by: Vida <vida@agents.livingip.xyz> Co-committed-by: Vida <vida@agents.livingip.xyz>
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| type | title | author | url | date | domain | secondary_domains | format | status | priority | tags | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| source | Improving Medicare Advantage by Accounting for Large Differences in Upcoding Across Plans | USC Schaeffer Center / Health Affairs Forefront | https://schaeffer.usc.edu/research/improving-medicare-advantage-by-accounting-for-large-differences-in-upcoding-across-plans/ | 2025-02-03 | health | paper | unprocessed | high |
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Content
Key Findings
- CMS overpaid MA by $50 billion (13%) in 2024 due to upcoding
- 15-percentage-point variation in coding intensity among 8 largest MAOs
- 10 MAOs have coding intensity more than 20% higher than traditional Medicare levels
The Competitive Dynamics of Upcoding
- Aggressive upcoding permits MA plans to offer better benefits than either TM or less-aggressive MA plans
- Enhanced benefits attract additional enrollees → both higher profits per enrollee AND increased market share
- This creates a perverse competitive advantage: the more you upcode, the more you grow
- Plans that code accurately are at a competitive DISADVANTAGE
The Virtuous/Vicious Cycle
- Plan upcodes aggressively → receives higher payments
- Higher payments fund better supplemental benefits (dental, vision, $0 premiums)
- Better benefits attract more enrollees
- More enrollees → more revenue → more resources for upcoding
- Competitors must either match upcoding or lose market share
Policy Recommendations
- Implement MedPAC recommendations for risk score calculation reform
- Exclude diagnoses from health risk assessments (in-home visits)
- Use two years' claims data for risk score calculation
- Plan-level coding intensity adjustment (not just system-wide 5.9%)
Related USC Schaeffer Research
- MA enrolls lower-spending people → large overpayments (favorable selection, June 2023)
- Favorable selection ups the ante on MA payment reform (June 2023)
- MedPAC critics get it wrong on overpayment estimates (July 2024)
Agent Notes
Why this matters: This research reveals the most structurally damaging aspect of MA upcoding: it's not just waste, it's a competitive advantage mechanism. Plans that upcode more grow faster because they can offer better benefits. This creates a race to the bottom where accurate coding is penalized by the market. The 15-percentage-point variation among top 8 MAOs shows this isn't uniform — some plans are far more aggressive than others. What surprised me: The competitive dynamics framing. I'd thought of upcoding as fraud/gaming. But USC Schaeffer frames it as a market mechanism: upcoding creates a competitive advantage that compounds. Honest plans can't compete. This is a textbook case of adverse selection — but among plans, not patients. KB connections: proxy inertia is the most reliable predictor of incumbent failure because current profitability rationally discourages pursuit of viable futures, Devoted is the fastest-growing MA plan at 121 percent growth because purpose-built technology outperforms acquisition-based vertical integration during CMS tightening Extraction hints: Claim about upcoding as competitive advantage mechanism — plans that code accurately are at a structural disadvantage, creating a race to the bottom in coding integrity.
Curator Notes
PRIMARY CONNECTION: CMS 2027 chart review exclusion targets vertical integration profit arbitrage by removing upcoded diagnoses from MA risk scoring WHY ARCHIVED: The competitive dynamics framing adds a dimension the KB doesn't have — it's not just about how much upcoding costs, but how upcoding shapes market structure. EXTRACTION HINT: The "honest plans can't compete" insight is the most extractable claim. It connects upcoding to market concentration (UHG/Humana duopoly).