NHI Claim Denied in Taiwan: How to Appeal

Taiwan's National Health Insurance (NHI) — 全民健康保險 — covers over 99% of the population and is funded through a combination of employer, employee, and government contributions. While it is extraordinarily comprehensive compared to most health systems, denials do occur. When NHI refuses to cover a treatment, drug, or medical device, there is a structured administrative appeal process you are entitled to use.

How NHI Works

NHI is administered by the National Health Insurance Administration (NHIA), a government agency under the Ministry of Health and Welfare. Your NHI card (健保卡) is your access point to the system. When you receive treatment at an NHI-contracted facility, the hospital or clinic bills NHIA directly — you pay only the applicable copayment.

NHI coverage is defined by the NHI Act and the benefits schedule maintained by NHIA. Certain treatments, drugs, and medical devices are covered; others are explicitly excluded or require prior approval.

Common Reasons NHI Coverage Is Denied

Treatment not on the NHI benefit schedule. NHI maintains a comprehensive list of covered treatments. Procedures or drugs not on this list — including many newer cancer therapies, advanced biologics, and some medical devices — are not covered. The hospital may notify you in advance that a specific treatment is self-pay.

Drug not on the NHI formulary. NHI maintains a controlled drug formulary. Off-label use of approved drugs, or use of drugs not yet approved for NHI coverage, may be denied. Some specialty drugs require additional approval — your physician must apply for a special exception from NHIA.

Treatment administered at the wrong tier without referral. NHI operates a tiered system: clinics (診所), regional hospitals (地區醫院), district hospitals (區域醫院), and medical centers (醫學中心). Accessing a higher tier without a referral from a lower tier results in a higher copayment, not a denial — but it is a common point of misunderstanding.

Medical necessity determination. For certain treatments requiring pre-approval (特殊材料 — special materials, or specific high-cost procedures), NHIA may deny pre-authorization if it determines the treatment is not medically indicated for the patient's condition.

Hospital billing errors. Sometimes it is the hospital or clinic that has made a billing or coding error, causing NHIA to reject the claim. In this case, the remedy is correction of the error by the provider.

Over-utilization review. NHIA monitors for patterns of over-treatment. If your provider is under review, certain billed items may be reduced or rejected. The impact on individual patients is usually indirect.

NHI Appeal Process: Step by Step

Step 1: Obtain the NHI Rejection Notice

Ask your healthcare provider or NHIA for a written explanation of why coverage was denied or reduced. The written notice should cite the relevant NHI regulation or schedule provision.

Step 2: Administrative Review (訴願)

This is the formal first step in NHI appeals. File a written application for administrative review (訴願申請) with the NHIA within 30 days of the adverse decision.

Your submission should include:

• Your NHI identification information
• The treatment, drug, or service at issue
• The specific denial reason
• Medical evidence supporting coverage: your physician's clinical notes, the diagnosis, relevant treatment guidelines, and any supporting academic literature if the treatment is newer

NHIA reviews the submission and issues a decision. If the decision remains adverse, you can escalate.

Step 3: Administrative Court (行政法院)

If the administrative review does not resolve the dispute, you may appeal to the Administrative Court. This is a formal legal proceeding — engaging a lawyer experienced in administrative or medical law is advisable at this stage.

Administrative court proceedings can take 6–24 months depending on complexity. They are appropriate for high-value or principle-based disputes.

Special Approval Process for Non-Covered Treatments

If your physician wants to prescribe a treatment that is not currently covered by NHI, they can apply to NHIA for a special approval (特殊申請). This is distinct from an appeal — it is a pre-treatment request.

Your physician should initiate this process. You can support it by:

• Ensuring your physician files the application promptly
• Providing any supporting specialist opinions requested
• Following up with the hospital's NHI administrative office

Practical Notes for NHI Disputes

Cancer patients. NHI provides strong cancer coverage, but some targeted therapies and immunotherapies may not yet be on the NHI formulary. Advocacy groups and your oncologist can help with special approval applications and appeals.

Rare diseases. Taiwan has a Rare Disease and Orphan Drug Act that provides supplemental support. If your condition qualifies, additional NHI benefits may be available.

Overseas treatment. NHI covers emergency treatment abroad but reimburses at NHI rates, which may be much lower than actual overseas costs. Disputes about overseas reimbursement amounts are handled through the same administrative review process.

Keep all receipts and records. Even for copayments and self-pay items, keep receipts — you may need them for both NHI appeals and private supplemental insurance claims.

NHI appeals are administrative proceedings, not adversarial litigation. A clear, medically supported submission often resolves disputes without reaching the court stage.

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Related Reading:

• How to Write an Insurance Appeal Letter
• What Is Medical Necessity?
• Internal vs External Insurance Appeal