https://www.insurerbrain.com/w/index.php?action=history&feed=atom&title=Definition%3AAffordable_Care_Act_%28ACA%29Definition:Affordable Care Act (ACA) - Revision history2026-06-14T08:34:21ZRevision history for this page on the wikiMediaWiki 1.43.8https://www.insurerbrain.com/w/index.php?title=Definition:Affordable_Care_Act_(ACA)&diff=6688&oldid=prevPlumBot: Bot: Creating new article from JSON2026-03-10T04:40:36Z<p>Bot: Creating new article from JSON</p>
<p><b>New page</b></p><div>🏥 '''Affordable Care Act (ACA)''' is the landmark federal [[Definition:Health insurance | health insurance]] reform law enacted in 2010 that reshaped the rules under which [[Definition:Insurance carrier | health insurers]] design, price, and sell coverage in the United States. Among its most consequential provisions for the insurance industry are the prohibition on denying coverage for [[Definition:Pre-existing condition | pre-existing conditions]], the requirement that [[Definition:Health plan | plans]] cover a set of [[Definition:Essential health benefit | essential health benefits]], the introduction of [[Definition:Medical loss ratio (MLR) | medical loss ratio]] minimums, and the creation of public [[Definition:Health insurance exchange | health insurance exchanges]] where individuals and small employers purchase subsidized coverage.<br />
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⚙️ The ACA's operational impact on carriers has been profound. Insurers selling [[Definition:Individual market | individual]] and [[Definition:Small group market | small group]] products must adhere to [[Definition:Community rating | community rating]] rules that limit how much [[Definition:Premium | premiums]] can vary based on age, geography, tobacco use, and family size — effectively eliminating the traditional [[Definition:Underwriting | underwriting]] practice of pricing based on an applicant's health status. The law's [[Definition:Medical loss ratio (MLR) | MLR]] requirement mandates that carriers spend at least 80% (individual and small group) or 85% (large group) of [[Definition:Premium | premium]] revenue on clinical services and quality improvement, with rebates owed to [[Definition:Policyholder | policyholders]] if the threshold is not met. [[Definition:Risk adjustment | Risk adjustment]], [[Definition:Reinsurance | reinsurance]] (in its transitional form), and risk corridor programs — collectively known as the "three Rs" — were designed to stabilize the market during early implementation, though the reinsurance and risk corridor programs have since expired, leaving permanent risk adjustment as the primary mechanism for mitigating [[Definition:Adverse selection | adverse selection]] among plans.<br />
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📈 More than a decade after its passage, the ACA continues to define the strategic calculus for health insurers. Carriers must decide which exchange markets to enter, how to manage [[Definition:Provider network | network]] adequacy requirements, and how to compete on narrow-margin products where administrative efficiency is critical. The law also spurred investment in [[Definition:Insurtech | insurtech]] capabilities — from digital enrollment platforms to [[Definition:Population health management | population health management]] analytics — as carriers sought to reduce costs within the MLR constraint. For the broader insurance ecosystem, the ACA demonstrated how sweeping regulatory change can compress margins in one segment while creating entirely new distribution channels and product categories, a lesson that resonates as policymakers consider similar interventions in areas like [[Definition:Long-term care insurance | long-term care]] and [[Definition:Prescription drug coverage | prescription drug coverage]].<br />
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'''Related concepts'''<br />
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* [[Definition:Health insurance]]<br />
* [[Definition:Medical loss ratio (MLR)]]<br />
* [[Definition:Health insurance exchange]]<br />
* [[Definition:Risk adjustment]]<br />
* [[Definition:Essential health benefit]]<br />
* [[Definition:Community rating]]<br />
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