MoneyInJapan

Underwriting and medical disclosure

Health questions, examinations, ratings, exclusions, postponement, and declined applications.

Direct answers

Answer every disclosure question completely and accurately; the insurer may accept you at standard rates, add a premium, exclude a body part, postpone, or decline — and material nondisclosure can void a claim.

Public coverage first · 2026 edition

Benefits may vary by: insurer · employment status · municipality · household

Get professional or administrator help: Ask for insurer pre-assessment where available, or work with an adviser who can compare underwriting outcomes.

Review due: 2026-10-30

Key points

  • Answer only what is asked, but answer it truthfully and in full.
  • A pre-existing condition does not always mean rejection — outcomes vary.
  • Try standard underwriting before paying more for a relaxed-underwriting product.
  • Nondisclosure discovered at claim time can cancel the contract.

Do not guess, and do not hide

If a question is unclear, ask the insurer in writing rather than guessing. Do not omit information the insurer requests. Getting a small exclusion or rating is usually better than a later claim denial for nondisclosure.

Who this is for

  • Residents mapping protection before shopping for private insurance

What this is not

  • A quote, policy ranking, or individualized recommendation
Important cautions
  • Eligibility, contributions, waiting periods, exclusions, and benefit amounts can vary. Confirm your case with the administering insurer or authority before acting.

Sources