A neonatal intensive care unit bill can change dramatically with respiratory support, tests, medication, surgery, transfers, meals, and non-covered supplies. A hospital may also revise the amount after National Health Insurance Service review. For that reason, this calculator does not invent a nationwide daily NICU price. It starts with the totals on the hospital receipt and itemized statement.
The calculator keeps three layers separate. It first estimates the statutory National Health Insurance copay for covered inpatient care and meals. It then estimates the Ministry of Health and Welfare premature-infant medical support for eligible full patient-payment and non-covered items. Finally, it adds excluded costs and deducts only other relief or insurance payments that the family has already confirmed.
1. NHI copay
Apply 5% to covered inpatient care and 50% to meals.
2. Public support
Apply the tiered support formula and the 2026 birth-weight cap.
3. Family cost
Keep excluded items visible and deduct confirmed relief only.
Article 19 and Appendix 2 of the Enforcement Decree of the National Health Insurance Act set the inpatient share for a child aged 15 or younger at 5% of covered care. Inpatient meal charges are handled separately at a 50% patient share. A newborn receiving NICU care therefore needs two different inputs: the covered-care total before the patient share, excluding meals, and the meal-charge total.
Covered inpatient care: 5%
Enter the covered-care total, not the copay already printed on the receipt. For example, KRW 30,000,000 of covered NICU care produces a simplified statutory copay of KRW 1,500,000. Item-by-item rounding and NHIS review may create a small difference from the final bill.
Inpatient meals: 50%
Do not combine meal charges with the 5% covered-care base. If the receipt shows KRW 200,000 in meal charges, this model assigns KRW 100,000 to the family. Combining the two categories and applying 5% would materially understate the bill.
A 5% partial copay is not the same as full patient payment
The ordinary 5% child inpatient share is a statutory partial copay. Korea’s premature-infant support guidance focuses on covered items classified as full patient payment and on eligible non-covered medical charges. Do not place the same 5% amount in the support fields again. If the receipt classification is unclear, ask the hospital billing desk or the public health center before treating the item as eligible.
Under the Enforcement Decree of the Maternal and Child Health Act, a premature infant is an infant born before 37 completed weeks or with a birth weight below 2,500 grams who needs special medical management and protection. The Ministry of Health and Welfare program guide describes support for a premature infant admitted to a NICU within 24 hours of birth because urgent surgery or treatment was required. The calculator asks for each observable condition, but the public health center makes the actual eligibility decision from the medical records.
The household-income limit was removed in 2024. In 2026 the per-infant cap depends mainly on birth weight, with the under-37-weeks condition also supporting the first band when birth weight is 2,500 grams or more.
Korea 2026 premature-infant medical support caps by birth weight and gestational age| Birth condition | Per-infant cap | Boundary rule |
|---|
| Birth weight under 1,000 g | KRW 20,000,000 | The lowest applicable weight band takes priority |
| 1,000 g to under 1,500 g | KRW 10,000,000 | Exactly 1,000 g starts this band |
| 1,500 g to under 2,000 g | KRW 5,000,000 | Exactly 1,500 g starts this band |
| 2,000 g to under 2,500 g, or under 37 weeks | KRW 4,000,000 | Under 37 weeks can qualify even at 2,500 g or more |
How the support amount is calculated
The first KRW 1,000,000 of the eligible base is modeled at 100%. The amount above KRW 1,000,000 is modeled at 90%. The result is then limited by the infant’s 2026 cap. A cap is therefore a maximum, not an automatic payment. The calculator shows both the amount before the cap and the amount that remains with the family after the modeled support.
Keep the receipt and the detailed medical-expense statement beside you. Korean hospitals may arrange the columns differently, so rely on the billing classification rather than the apparent purpose of an item. If you are not sure whether a non-covered item is recognized by the program, calculate a conservative version with that item in excluded costs and ask the public health center.
- Enter completed gestational weeks, additional days, and birth weight. Use the data recorded at birth. Thirty-six weeks and six days is still under 37 weeks, while 37 weeks and zero days is not.
- Confirm NICU admission within 24 hours. If the infant was transferred, keep the first admission and transfer records because the time sequence may matter.
- Confirm the need for urgent surgery or treatment. Selecting yes is only a planning input; a diagnosis, admission record, and public-health review determine the actual result.
- Enter the covered-care total before copay and the meal total separately. The calculator applies 5% and 50% respectively.
- Enter full patient-payment and eligible non-covered charges. Do not copy the ordinary 5% partial copay into these fields.
- Keep excluded costs visible. Certificates, guardian meals, non-treatment supplies, and other excluded categories still affect the household cash requirement even if they do not increase public support.
- Deduct other relief only after it is confirmed. A possible private insurance payment should remain zero until the insurer confirms the amount and any coordination with public support.
Amounts that can form the support base
- Covered items classified on the receipt as full patient payment
- Non-covered medical charges confirmed as eligible from the itemized statement
- Eligible inpatient treatment connected to the final discharge episode
Amounts that may need to remain excluded
- Certificate fees, guardian meals, and other non-treatment charges
- Diapers, thermometers, and supplies whose treatment purpose is not accepted
- Vaccination, outpatient or rehabilitation care, and a later readmission
- Private-room surcharges, overseas treatment, or another category requiring individual confirmation
These lists help with data entry but do not replace an eligibility decision. A public health center may request a detailed statement or additional medical confirmation. Preserve the original receipt and statement, and avoid automatically labeling every non-covered item as support-eligible.
The calculator’s example button uses an illustrative receipt, not a Korean hospital average. Assume a baby was born at 32 weeks weighing 1,800 grams, entered a NICU within 24 hours, and required urgent treatment. The receipt shows KRW 30,000,000 of covered care, KRW 200,000 of meals, KRW 1,200,000 of full patient-payment covered items, KRW 2,000,000 of eligible non-covered charges, and KRW 300,000 of excluded costs.
Covered care at 5%
KRW 30,000,000 × 5%
Meals at 50%
KRW 200,000 × 50%
Support base
KRW 1,200,000 + KRW 2,000,000
Tiered support
KRW 1,000,000 + 90% of KRW 2,200,000
Cost before support
Statutory shares + support base + excluded costs
Cost after support
KRW 5,100,000 − KRW 2,980,000
A birth weight of 1,800 grams gives a 2026 cap of KRW 5,000,000. Because KRW 2,980,000 is below that cap, the modeled public support is KRW 2,980,000. The final family cost is not zero because the statutory partial copay, the 10% share above the first support tier, and excluded costs remain.
Premature-infant medical support
The numerical definition uses birth weight below 2,500 grams or gestation below 37 completed weeks. Exactly 2,500 grams at 37 weeks or later does not meet the weight threshold. A baby weighing 2,700 grams at 36 weeks and six days can still meet the gestational threshold.
Registered outpatient 5% reduction
The NHIS low-birth-weight outpatient rule uses 2,500 grams or less. Exactly 2,500 grams can therefore fall outside the premature-infant weight threshold while remaining inside the low-birth-weight outpatient rule. The calculator preserves the legal difference between below and at-or-below.
Follow-up can continue after discharge for growth, respiratory, ophthalmic, neurologic, and developmental monitoring. Once registered with the National Health Insurance Service, an eligible preterm or low-birth-weight infant can receive a 5% outpatient copay for covered care during the applicable period. The calculator reports the period but does not predict future visit totals.
Under 29 weeks
Expanded for 2026
29 to under 33 weeks
Expanded for 2026
33 to under 37 weeks
Expanded for 2026
Birth weight up to 2,500 g
Low-birth-weight basis
Birth data alone does not activate the reduction. Confirm registration, the effective start and end dates, and hospital-system recognition with NHIS. The displayed duration is a policy guide rather than a guarantee that every future item is covered.
The Ministry of Health and Welfare guide gives a six-month application window from final discharge. Applications may be available through the local public health center, the e-Health public portal, or the Imom application. If there was a transfer or readmission, ask which discharge date controls the deadline rather than assuming that the latest bill tells the full story.
Document checklist
- Premature-infant medical support application form
- Hospital receipts and detailed medical-expense statements
- Bank-account copy and applicant identification documents
- Birth report or birth certificate and medical proof of premature birth
- Resident-registration or family-relationship documents requested for the case
- Admission, discharge, transfer, and payment records from each hospital when applicable
Calculate each infant separately
The cap is per infant. For twins or higher-order multiples, combining all receipts into one calculation can apply the wrong band and cap. Enter the birth data and charges separately for each infant and follow the public health center’s document instructions for each application.
Does every NICU admission qualify for the program?
No. NICU admission alone does not determine payment. Check the gestational-age or birth-weight threshold, admission within 24 hours, the need for urgent surgery or treatment, eligible charge categories, the deadline, and the public health center’s review.
Is the ordinary 5% covered copay included in public support?
The national program guide identifies full patient-payment covered charges and eligible non-covered medical charges as its calculation base. Keep the ordinary partial copay separate and ask the public health center how the classifications on the actual receipt will be treated.
Does a birth weight of exactly 2,500 grams qualify?
Not through the premature-infant weight threshold alone, which is below 2,500 grams. Gestation below 37 weeks may still qualify. Separately, the registered low-birth-weight outpatient rule includes 2,500 grams or less.
Can a high-income household apply?
The household-income restriction was removed in 2024 according to the Ministry of Health and Welfare guide. Income does not replace the other infant, hospitalization, charge, deadline, and document requirements.
Does the calculator estimate Korean private medical insurance?
No. Coverage varies by policy generation, enrollment date, exclusions, and claim review. Enter a private-insurance amount only after the insurer confirms it, and check whether another payer will coordinate or deduct the public support amount.
Why can the estimate differ from the final receipt?
This is a transparent aggregate model. The final bill may include item-level rounding, NHIS review, hospital adjustments, other reductions, and a public-health decision about excluded items. Use the hospital receipt and official decision as the controlling amounts.
- Recalculate from the final receipt rather than mixing an interim deposit statement with the discharge bill
- Locate the separate columns for covered total, partial copay, full patient payment, non-covered care, and meals
- Run a conservative scenario when a non-covered item has not yet been accepted by the public health center
- Ask how transfers and readmissions affect the supported episode and the final-discharge deadline
- Confirm coordination rules before combining public support, hospital aid, charity funding, and private insurance
- Keep digital copies of receipts, itemized statements, diagnoses, and admission or transfer records
- Recheck the rules for the infant’s birth year and application date because caps and procedures can change
Official sources checked on July 29, 2026
The model is based on the Ministry of Health and Welfare maternal-and-child support guide, the National Health Insurance Service 2026 change notice, and the current Enforcement Decrees of the National Health Insurance Act and the Maternal and Child Health Act. Always confirm the latest Korean-language instructions before applying.
Use estimated amounts now to plan the cash range, then replace them with the final receipt and itemized statement. The result can help you prepare precise questions for the hospital billing desk and the local public health center, but it is not a medical, insurance, or eligibility decision.
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