What Insurance Doesn't Cover

What insurance doesn't cover in Japan surprises many residents the first time they hear the full price at the counter.¹ The public system pays 70 percent of medically necessary care, but a defined set of treatments sits outside that split and bills at 100 percent self-pay.²

Confirm current details with official sources

Procedures, fees, and requirements can change. Confirm current details at the Ministry of Health, Labour and Welfare (MHLW) and your insurer. This article is general information, not medical advice; for your specific case, consult a licensed physician or the treating clinic.

Overview

Japan's public insurance covers care listed in the national fee schedule as treatment for illness or injury.¹ A working-age adult typically pays 30 percent at the counter while insurance pays 70 percent, with lower shares for young children and older adults.¹

The exclusion boundary is national and uniform. MHLW sets the benefit package in the fee schedule, so a treatment excluded in Tokyo is excluded in Osaka too.²³ Municipal offices differ only in administration, such as where vouchers are issued or where basic checkups are held.

The medically necessary rule

The 保険診療 (hoken shinryo, "insured medical care") label applies only to listed, medically necessary treatment.² Care without symptoms, care deemed unnecessary for survival, or care chosen for comfort or appearance usually falls outside it.⁴

The default rule is strict. If an episode includes even one non-covered treatment, the whole episode becomes self-pay, including parts that would normally be covered.²³

The exception matters as much as the rule. Evaluation treatment, patient-requested treatment, and elective treatment designated by the MHLW Minister can combine with insured care.²³ In that path the insured base stays at the normal copay and only the designated non-covered portion bills in full.²

The decision shape looks like this:

Cosmetic surgery and cosmetic dermatology

Purely cosmetic surgery and cosmetic dermatology are excluded from public insurance.⁴¹ This covers aesthetic procedures with no disease or dysfunction behind them, from cosmetic facial surgery to aesthetic skin treatments.⁵

The Commonwealth Fund groups the exclusion with infertility add-ons and nonessential dental and vision care, all paid out of pocket alongside copays for covered core services.¹ Core services such as hospital care, outpatient visits, mental health care, and listed drugs stay universally covered with copays as the main cost sharing.¹

Reconstructive cases that can stay covered

Reconstruction after injury or disease can stay covered when it restores function or treats a medical condition.⁵ The distinction turns on medical necessity, not on the surgical technique alone.

Ask the clinic which category your case falls in before consent. A functional repair documented as treatment differs from an aesthetic procedure documented as choice.²

Dental care that splits covered from self-pay

Basic dentistry is covered at the normal copay. Fillings with standard materials, extractions, root canals, periodontal treatment, and standard metal crowns all follow the 30 percent path.¹⁵

Premium materials and elective goals split off into self-pay. The fee schedule reflects a design that restores function with standard materials rather than subsidizing aesthetic priority work.⁶

Orthodontics and whitening

Orthodontics for appearance or mild crowding is self-pay.⁴⁶ Coverage exists only for specified congenital conditions and jaw deformity requiring surgery at approved facilities.⁶

Teeth whitening is self-pay in all routine cases.⁴ No combination-care path turns whitening into insured care.

Fillings, crowns, and implants

Ceramic or other special cavity fillings and ceramic crowns are non-covered where a conventional material is the insured standard.⁴⁶ Implants are generally non-covered except narrow cases such as major jaw defects treated at designated hospitals.⁶

The table below shows secondary self-pay bands. Figures carry the currency note below the table (as of 2026-03; confirm current figures with the treating clinic).⁵

Item	Typical self-pay band	As of	Notes
Implant, per tooth	300,000-500,000 yen	2026-035	Surgery and crown vary by clinic
Ceramic or white crown, per tooth	50,000-150,000 yen	2026-035	Metal crown is the insured standard
Full orthodontics	600,000-1,200,000 yen	2026-035	Duration often 1-3 years plus retention

Ask whether the upgrade qualifies for price-difference payment

Front-tooth cast crowns, metal-base dentures, and pediatric caries follow-up can use combination care where you pay only the material price difference.²³ Confirm this before consent, since the receipt looks very different from full self-pay.

Fertility treatment after the 2022 reform

From April 2022, basic infertility treatment including 体外受精 (taigai jusei, "in-vitro fertilization (IVF)") and 顕微授精 (kenbi jusei, "intracytoplasmic sperm injection (ICSI)") became insured care.⁷⁸ Older guides that list infertility treatment as simply non-covered are stale after this reform.⁴

Coverage carries the former subsidy program's age and count limits. Treatment must start when the woman is under 43.⁷⁸ Up to 6 embryo transfers per child count when the first plan started under age 40, and up to 3 per child when it started at 40 to under 43.⁷⁸

Counts reset per child. After a birth, a further 6 transfers (restart under 40) or 3 transfers (restart at 40 to under 43) are allowed for the next child.⁸ Age is measured at treatment-plan start, and past insured transfers count toward the limit.⁸

Treatments still out of pocket

Some add-ons recognized as 先進医療 (senshin iryo, "advanced medical care") can combine with the insured base, with the advanced portion self-pay.⁷ The MHLW leaflet notes that some option treatments are insured while others ride as senshin iryo alongside insurance.⁷

The senshin iryo list changes over time, so confirm each add-on at the treating facility. Treatments outside both the insured list and the senshin iryo list remain fully self-pay and trigger the pay-all rule.²⁷

Confirm age, count, and add-on status before the cycle starts

Ask the clinic to state in writing whether each step is insured, senshin iryo combination, or full self-pay. Practitioner sources describe egg freezing for future use as outside the insured path, but figures are inconsistently reported, so treat it as self-pay until the clinic confirms otherwise.

Normal childbirth and the separate lump-sum benefit

Normal vaginal delivery is not classified as illness and is not billed through the 70/30 split.⁹¹⁰ Cesarean sections, abnormal deliveries, and complications treated as sickness are covered as insured care.⁹¹⁰

Instead of the copay mechanic, every qualifying birth receives the 出産育児一時金 (shussan ikuji ichijikin, "Childbirth and Childcare Lump-Sum Grant").¹¹ The grant is national and uniform; municipalities differ only in how they issue paperwork and appointments.

Eligibility needs two facts: public insurance enrollment at birth and pregnancy of at least 85 days (4 months).¹¹⁹ Method and place do not matter once those hold.¹¹

What the lump sum pays and what stays self-pay

The grant pays 500,000 yen per child at a compensation-scheme facility at 22 weeks or later, and 488,000 yen otherwise (as of 2023-04; confirm current figures with your insurer).¹¹¹²⁹ The 500,000 yen level rose from 420,000 yen in April 2023.¹¹ Multiples multiply per child.¹²⁹

Direct payment to the facility is the norm. The insurer pays the hospital directly and the mother pays only the balance above the grant at discharge (as of 2023-04).¹¹¹² If the invoice falls below the grant, the difference is refunded.¹¹¹²

Case	What pays	As of	Notes
Compensation-scheme facility, 22 weeks or later	500,000 yen per child	2023-0411129	Includes stillbirth meeting duration test
Other facility or under 22 weeks	488,000 yen per child	2023-0411129	Non-member facility or early loss
Normal delivery invoice at private facilities	400,000-650,000 yen total	2026-035	Secondary band; balance above grant is self-pay

Private-room upgrades, premium meals, and comfort extras sit outside both the grant arithmetic and any insured portion.⁹³ For insured cesarean or complication portions with high bills, the high-cost medical expense cap path can apply alongside the lump sum.¹²⁹

The payment flow looks like this:

Checkups, vaccinations, and preventive care

Tests ordered because symptoms exist are diagnostic insured care.⁴ Asymptomatic screening follows a different track, with employer, municipal, and voluntary layers.

The scope is uniform nationally, but the venue varies by city. Your ward office or insurer assigns the participating clinic and the coupon or invitation route.

Employee annual exam and municipal checks

Employers provide the annual 健康診断 (kenko shindan, "health checkup") for regularly employed staff and cover the mandatory items.⁵ Specific checkups for ages 40-74 focus on metabolic syndrome and run through municipalities or insurers, often free or at low cost.⁵

These mandated checks cover the basics. Anything beyond the mandated items, added imaging, or rebooking outside the company plan can bill separately.

Comprehensive dock and voluntary vaccines

The 人間ドック (ningen dokku, "comprehensive voluntary health screening course") is voluntary and examinee-paid.⁶ About 1,727 facilities serve about 3.7 million people yearly, with half-day to multi-day courses built from basic plus optional imaging and marker panels.⁶

Self-pay bands below are secondary ranges (as of 2026-03; confirm current figures with the screening facility).⁵ Some employer insurance societies subsidize dock costs above a threshold age, often 35 or 40 (as of 2026-03).⁵

Course	Typical self-pay band	As of	Notes
Basic one-day dock	30,000-60,000 yen	2026-035	Standard labs plus ultrasound and ECG
With cancer options	60,000-100,000 yen	2026-035	Endoscopy and marker add-ons
Premium MRI or PET packages	100,000 yen and higher	2026-035	Facility and menu drive the spread

Routine public-schedule childhood vaccines and some elderly shots flow through municipal programs rather than insurance billing. Voluntary adult shots such as general influenza at about 3,000-5,000 yen, mumps, hepatitis A, and travel vaccines are self-pay (as of 2026-03).⁵ GaijinPot lists vaccinations and voluntary checkups as routinely non-covered.⁴

Allergy testing shows the boundary cleanly. The same test with symptoms is diagnostic insured care, while testing out of curiosity is non-covered.⁴

Findings during a dock can start a separate insured episode

If a dock finds something needing biopsy, polyp removal, or imaging follow-up, that treatment bills as insured care with its own copay. Bring your insurance card even to a self-pay screening.

Drugs and advanced treatments still in approval

Only drugs and devices on the national price lists and fee schedule are insured.²³ Pre-listing use, off-label use, and trial-stage use sit outside insurance unless they qualify as evaluation or patient-requested combination care.²³

Advanced care at university or advanced-treatment hospitals can combine. Basic inpatient and drug charges stay insured while the advanced technique itself is self-pay.² Some advanced care is not eligible for combination at all, so confirm eligibility before consent.²

Work injuries sit in a different system. They fall under workers accident compensation insurance, not health insurance. Injuries from fights, criminal activity, severe drunkenness, or self-inflicted causes can also be excluded.⁴

Requesting a long-listed brand-name drug where a generic exists adds a surcharge on the price difference (as of 2024-10; confirm current figures with the pharmacy).³ The fraction has varied across insurer notices, so confirm the current arithmetic at the counter rather than relying on a fixed ratio.

The combination-care exception

The three combination paths are evaluation treatment, patient-requested treatment, and elective treatment.²³ Evaluation covers advanced care, drug or device trials, pre-listing use, and off-label use of listed drugs.²

Patient-requested care, or 患者申出療養 (kanja moshide ryoyo, "patient-requested medical care"), accelerates access through core clinical research hospitals.³ After family-doctor consultation and a written hospital opinion, government screening runs in about six weeks before treatment at the receiving facility.³

Elective care, or 選定療養 (sentei ryoyo, "elective (selected) medical care"), covers special environments, reserved or after-hours care, non-referral large-hospital first visits, over-limit procedures, over-180-day stays, and dental price differences.² Private-room choice, reservation fees, after-hours surcharges, and non-referral surcharges all live here.²³

Abortion and other routine exclusions

Routine induced abortion is self-pay and does not use the 30 percent mechanic.¹³ Clinics commonly quote 150,000-250,000 yen up to 10-12 weeks, with higher totals when hospitalization is needed at later weeks, often in cash (as of 2026-02; confirm current figures with the clinic).¹³

The insurer nuance matters. IBM Kenpo notes that an abortion procedure under the 母体保護法 (botai hogo-ho, "Mother's Body Protection Law") can carry insurance benefits, but abortions performed simply for economic reasons are not eligible.¹⁴ When pregnancy has lasted at least 85 days, the Childbirth and Childcare Lump-Sum Grant can still pay even for abortion or stillbirth meeting the duration test.¹²¹⁴

Other routine extras follow the same self-pay logic. Hospital meals beyond the standard, 差額ベッド代 (sagaku beddo-dai, "private-room bed surcharge") bands of about 5,000-30,000 yen or more per night, reservation fees, after-hours surcharges, non-referral large-hospital first-visit surcharges, and medical certificates are elective or non-covered.²³⁵

Eyeglasses, contact lenses, and vision-correction surgery are excluded except narrow pediatric reimbursement, while physician-provided eye-disease care stays insured.¹

How to confirm coverage before treatment

Ask the clinic whether the proposed procedure and material are insured care or self-pay.² Ask the insurer, the kenpo society, or the municipal NHI desk whether combination care applies to your case.²³

For fertility care, confirm age, count, facility accreditation, and each add-on's status before the cycle starts.⁷ For dental upgrades, ask whether price-difference combination or full self-pay applies before consent.²³

For childbirth, confirm direct-payment handling with the birth facility before admission.¹¹ Keep every receipt, since self-pay medical costs can count toward the medical-expense tax deduction.⁵ This article describes systems and access paths only; for your own treatment decision, consult a licensed physician.

Good to know

A normal birth can turn covered mid-course when complications arise

A delivery planned as normal birth becomes partly insured the moment a covered intervention is ordered.¹²⁹ The insured portion follows the copay plus high-cost-cap path while the normal-birth portion still follows the lump-sum path.

Families budgeting only the lump-sum arithmetic face two parallel payment rules at once. Confirm with the hospital office which lines on the invoice took which path before discharge.

The ceramic upgrade at the dentist is a price-difference choice, not a full re-billing

Front-tooth and denture upgrades can qualify for combination care where only the material difference is self-pay.²³ The visit itself does not convert to full self-pay when this path applies.

Patients who assume any premium material voids the whole episode either overpay or decline needed care. Ask for the combination-care estimate in writing.

IVF coverage has age and count limits that surprise older patients

Starting at 43 or beyond the 6th transfer (under-40 start) or 3rd transfer (40-42 start) per child moves the next cycle to full self-pay.⁷⁸ Age is measured at treatment-plan start, and counts run per child including past insured transfers.⁸

This timing trap hits hardest when treatment pauses between children. Restart the count conversation with the clinic before the new plan is signed.

The dock fee is only the entry price; follow-up tests add on

The dock course fee is self-pay, and any abnormal finding that needs biopsy, polyp removal, or imaging follow-up starts a separate insured episode with its own copay.⁶

Budget the dock plus the possible insured follow-up, not the dock alone. Bring your insurance card to the screening even though the course itself is self-pay.

A private room requested for comfort stays self-pay even during a covered admission

A private or suite room chosen by the patient is elective self-pay.²³ The same room assigned by the hospital for medical necessity or intensive care stays insured.²

The invoice distinction turns on who requested the room. If no shared room was available, confirm that the surcharge does not apply before signing the room agreement.

See also

• Clinic vs. Hospital: The Two-Tier System
• Maina-Hokensho: Health Insurance Card Going Digital
• Birth Registration and the 14-Day Rule
• How Japan's Universal-Coverage System Works
• The High-Cost-Catch (Kogaku Ryoyohi) System
• Generics (Jeneriku) and the Cost Question

References

Footnotes

1. Commonwealth Fund. "JAPAN: International Health Care System Profile." May 2026. https://www.commonwealthfund.org/sites/default/files/2026-05/2026_Country-Profiles_Japan.pdf ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸

2. EY Japan Health Insurance Society. "Expenses for Combined Covered/Non-covered Medical Care". https://www.eyjapan-kenpo.jp/eng/situation_03.jsp ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹ ↩¹² ↩¹³ ↩¹⁴ ↩¹⁵ ↩¹⁶ ↩¹⁷ ↩¹⁸ ↩¹⁹ ↩²⁰ ↩²¹ ↩²² ↩²³ ↩²⁴

3. JERA Health Insurance Society. "When you receive medical care which requires payment of the difference". https://www.jerakenpo.or.jp/eng/member/benefit/difference.html ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹ ↩¹² ↩¹³ ↩¹⁴ ↩¹⁵ ↩¹⁶ ↩¹⁷

4. GaijinPot Blog. "Treatments covered and not covered by Japan's health insurance." 2020-11-24. https://health.gaijinpot.com/treatments-covered-and-not-covered-by-japans-health-insurance/ ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰

5. LO-PAL. "What Japan's Health Insurance Won't Cover (The Costly List)." 2026-03-28. https://lo-pal.app/guide/en/japan-insurance-not-covered ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰ ↩¹¹ ↩¹² ↩¹³ ↩¹⁴ ↩¹⁵ ↩¹⁶ ↩¹⁷ ↩¹⁸

6. Zaitsu et al. "Global Neglect of Dental Coverage" / Kashiwagi et al. "Ningen Dock: Japan's unique comprehensive health checkup system" (peer-reviewed summaries of Japanese system). https://pmc.ncbi.nlm.nih.gov/articles/PMC9275350/ and https://www.jstage.jst.go.jp/article/ghm/4/1/4_2021.01109/_pdf/-char/en ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸

7. 厚生労働省 四国厚生支局. 「(リーフレット)不妊治療の保険適用」 (April 2022 leaflet). https://kouseikyoku.mhlw.go.jp/shikoku/iryo_shido/000234364.pdf ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸

8. 厚生労働省. 「先進医療における不妊治療の対応について」 / 「個別事項(その4)」不妊治療の保険適用の経緯・範囲 (MHLW council materials, 2021-2023). https://www.mhlw.go.jp/content/12404000/000866793.pdf ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷

9. JERA Health Insurance Society. "Childbirth". https://www.jerakenpo.or.jp/eng/member/benefit/baby_a.html ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰

10. 出入国在留管理庁 (Immigration Services Agency, MOJ). "Procedures Related to Pregnancy" (PDF). https://www.moj.go.jp/isa/content/001453528.pdf ↩ ↩²

11. 厚生労働省 (MHLW). 「出産育児一時金等について」. https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/kenkou_iryou/iryouhoken/shussan/index.html ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹ ↩¹⁰

12. 全国健康保険協会 (Kyokai Kenpo). 「出産育児一時金」. https://www.kyoukaikenpo.or.jp/benefit/childbirth/002/index.html ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷ ↩⁸ ↩⁹

13. Japan Healthcare Info (JHI). "Abortion/Termination of pregnancy". https://japanhealthinfo.com/abortiontermination-of-pregnancy/ ↩ ↩²

14. IBM Japan Health Insurance Association. "Tip (2): The Mother's Body Protection Law and health insurance". https://www.ibmjapankenpo.jp/eng/asp/faq/faq.asp?articleid=1182&categoryid=20 ↩ ↩²