Health Claims History

Why it matters for underwriting

At individual level, health claims history is the core input to medical underwriting because pre-existing and recently treated conditions are the strongest available predictor of near-term future claims cost; at group level, the aggregate claims experience of a scheme drives experience rating far more than demographic factors alone. Underwriters distinguish resolved, one-off treatments from chronic or recurring conditions, and for groups they track the utilisation trend by benefit category (inpatient, outpatient, daily allowance) across several renewal years to separate a genuine deterioration in the risk pool from a single high-cost outlier.

Capturing the attribute and evidence

Individual applications ask for a health questionnaire covering treatments, hospitalisations and incapacity-for-work periods of the last three to five years, corroborated where necessary by a physician’s report for material or ongoing conditions. Group schemes instead rely on an anonymised claims experience report from the current or prior insurer, broken down by benefit category and cost band, together with the employer’s absence and incapacity records, since individual medical underwriting is typically not applied within an existing group.

Effect on coverage, premium and conditions

For individuals, a clean history supports standard terms, while disclosed pre-existing conditions commonly lead to condition-specific exclusions, waiting periods, premium loadings or, for severe conditions, a decline to offer cover. For group schemes, a favourable claims trend supports competitive renewal terms, while a deteriorating trend typically results in premium increases, benefit restructuring, or tightened conditions on the most cost-driving benefit categories.

Mitigation measures

Insurers and employers typically respond to adverse group experience with targeted health-promotion and case-management programmes for high-cost or recurring conditions, tighter absence-management processes, and periodic review of scheme design to align benefit levels with the underlying claims trend.