https://www.insurerbrain.com/w/index.php?action=history&feed=atom&title=Definition%3AMajor_medical_insuranceDefinition:Major medical insurance - Revision history2026-04-30T01:21:16ZRevision history for this page on the wikiMediaWiki 1.43.8https://www.insurerbrain.com/w/index.php?title=Definition:Major_medical_insurance&diff=11320&oldid=prevPlumBot: Bot: Creating new article from JSON2026-03-11T23:57:41Z<p>Bot: Creating new article from JSON</p>
<p><b>New page</b></p><div>🏥 '''Major medical insurance''' is a type of [[Definition:Health insurance | health insurance]] coverage designed to pay for a broad range of medical services, from routine doctor visits and [[Definition:Prescription drug coverage | prescription drugs]] to hospitalization, surgery, and emergency care. Unlike limited-benefit or supplemental plans that cover only specific conditions or narrow categories of treatment, major medical policies provide comprehensive protection against the high costs of serious illness or injury. In the United States, [[Definition:Affordable Care Act (ACA) | Affordable Care Act]]-compliant plans are the most recognizable form of major medical insurance, and they must cover [[Definition:Essential health benefits | essential health benefits]] as defined by federal law.<br />
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⚙️ These policies typically operate through a combination of [[Definition:Deductible | deductibles]], [[Definition:Copayment | copayments]], [[Definition:Coinsurance | coinsurance]], and [[Definition:Out-of-pocket maximum | out-of-pocket maximums]] that share costs between the insurer and the [[Definition:Policyholder | policyholder]]. [[Definition:Insurance carrier | Carriers]] offering major medical plans build [[Definition:Provider network | provider networks]], negotiate reimbursement rates with hospitals and physicians, and use [[Definition:Utilization management | utilization management]] programs to control costs. [[Definition:Underwriting | Underwriting]] for ACA-compliant plans operates under [[Definition:Guaranteed issue | guaranteed issue]] rules, meaning insurers cannot deny coverage or vary [[Definition:Premium | premiums]] based on health status — a fundamental shift from pre-ACA individual market practices that relied heavily on [[Definition:Medical underwriting | medical underwriting]].<br />
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📊 From an industry standpoint, major medical insurance represents one of the largest segments of the U.S. insurance market by [[Definition:Premium volume | premium volume]], and its financial dynamics differ markedly from [[Definition:Property and casualty insurance | property and casualty]] lines. [[Definition:Loss ratio | Loss ratios]] are governed in part by the ACA's [[Definition:Medical loss ratio (MLR) | medical loss ratio]] requirements, which mandate that a minimum percentage of premiums be spent on medical care rather than administrative costs or profit. This regulatory constraint shapes how [[Definition:Health insurance | health insurers]] compete — pushing them toward operational efficiency, [[Definition:Value-based care | value-based care]] arrangements, and [[Definition:Data analytics | data analytics]] to manage [[Definition:Claims | claims]] costs. For [[Definition:Insurtech | insurtech]] companies entering the health space, understanding the regulatory architecture surrounding major medical products is essential before attempting to innovate within it.<br />
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'''Related concepts:'''<br />
{{Div col|colwidth=20em}}<br />
* [[Definition:Health insurance]]<br />
* [[Definition:Essential health benefits]]<br />
* [[Definition:Medical loss ratio (MLR)]]<br />
* [[Definition:Managed care plan]]<br />
* [[Definition:Affordable Care Act (ACA)]]<br />
* [[Definition:Supplemental insurance]]<br />
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