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🫀 '''Critical illness''' in insurance refers to both a category of health event and a type of coverage — [[Definition:Critical illness insurance | critical illness insurance]] — that pays a lump-sum benefit upon diagnosis of a specified severe medical condition, such as cancer, heart attack, stroke, major organ transplant, or coronary artery bypass surgery. Unlike [[Definition:Health insurance | health insurance]], which reimburses medical expenses, or [[Definition:Disability insurance | disability insurance]], which replaces lost income, critical illness coverage provides an unrestricted cash payment that the [[Definition:Policyholder | policyholder]] can use for any purpose, whether covering treatment costs, replacing income, or managing household expenses during recovery. The product originated in South Africa in the 1980s, created by cardiac surgeon Marius Barnard, and has since become one of the most widely sold supplemental life and health products globally, with particularly deep penetration in the United Kingdom, South Korea, China, and Southeast Asian markets.

⚙️ A critical illness policy lists defined conditions and corresponding medical criteria that must be met before a claim is payable. The specificity of these definitions is crucial — a cancer diagnosis, for example, may exclude early-stage or in-situ carcinomas, while a heart attack claim may require evidence of elevated cardiac biomarkers and characteristic ECG changes. Industry bodies in several markets have worked to standardize these definitions: in the United Kingdom, the Association of British Insurers publishes a model wording for core conditions, while in Singapore, the Life Insurance Association maintains a similar framework. [[Definition:Underwriting | Underwriting]] for critical illness products can be more stringent than for basic [[Definition:Life insurance | life insurance]], since the insurer must assess the probability of survivable but serious diagnoses rather than mortality alone. Some policies offer tiered benefits, paying a partial amount for less severe conditions (such as early-stage cancer) and the full sum insured for advanced diagnoses, while others bundle critical illness as a rider on an underlying life policy rather than issuing it as standalone coverage.

📊 The commercial importance of critical illness coverage to the life insurance sector is substantial — in several Asian markets, it represents the single largest product category by new business volume. For carriers, however, it brings distinctive [[Definition:Actuarial science | actuarial]] challenges: medical advances continuously shift survival rates and diagnostic thresholds, meaning that conditions once considered uniformly fatal may increasingly trigger claims as survivable events. This dynamic puts pressure on [[Definition:Reserving | reserves]] and forces periodic re-evaluation of product terms. The distinction between [[Definition:Chronic illness | chronic illness]] and critical illness is important in product design — chronic illness triggers are typically functional (inability to perform [[Definition:Activities of daily living (ADLs) | activities of daily living]]), while critical illness triggers are diagnostic. [[Definition:Insurance coverage dispute | Disputes]] over whether a diagnosis meets the precise contractual definition remain a persistent source of consumer complaints, making transparent drafting and clear communication at the point of sale essential for both regulatory compliance and customer trust.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Critical illness insurance]]
* [[Definition:Chronic illness]]
* [[Definition:Life insurance]]
* [[Definition:Activities of daily living (ADLs)]]
* [[Definition:Underwriting]]
* [[Definition:Health insurance]]
{{Div col end}}

Definition:Critical illness - Revision history

PlumBot: Bot: Creating new article from JSON