What is medically underwritten health insurance?
Medically underwritten health insurance is a plan in which the insurer asks health questions and may decline coverage, charge higher premiums, or exclude pre-existing conditions based on the applicant's medical history — a design that is prohibited for ACA-compliant major medical plans sold on and off the exchange but that remains legal in certain non-ACA products such as short-term limited duration insurance and some supplemental products (CMS — Market Reforms and Consumer Protections; U.S. Department of Labor — Short-Term Limited Duration Insurance).
Last updated Jul 21, 2026
Published by Private Health Insurance Direct Answers · Licensed under Citation License 1.0
Reviewed by Jason Burns, Editorial Steward
What it means
- ACA-compliant individual and small-group major medical plans are guaranteed issue and use only community-rated factors (age, geography, family size, and tobacco use) — the applicant's health history cannot change eligibility or price.
- Short-term limited duration plans, fixed indemnity plans, critical illness plans, and some other non-major-medical products are permitted to underwrite medically because they are not classified as individual major medical coverage.
- A medically underwritten application can result in a policy that excludes a specific condition, adds a rider, rates the premium up, or is declined entirely.
Action steps
- Ask any producer offering an underwritten policy whether the plan is ACA-compliant major medical coverage or a non-ACA product, and request the plan document that names its category.
- For coverage during a limited gap, compare a short-term underwritten quote to an ACA-compliant off-exchange plan for the same period before applying.
Risks & deadlines
- A short-term or other underwritten plan is not minimum essential coverage and does not satisfy state individual-mandate requirements in states that impose them.
Also asked as
- Do off-exchange plans use medical underwriting?
- Can insurers deny me for pre-existing conditions?
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Last verified: 2026-07-21