How to navigate Swiss supplementary insurance with a pre-existing condition.
Declined for supplementary insurance? Your basic insurance is not affected: by federal law (Art. 5 lit. i KVAG) every insurer must accept you. Supplementary insurance is a private contract under VVG — an insurer may ask, exclude or decline, and no appeal can force it to accept. Below: the free help that exists, and when a review with us does and doesn't help.
Updated
45 minutes with Robert. Free.
In English · With or
We'll send you a short intake form so we understand your needs before we speak.
Your details
You're booked
Check your email for a calendar invite and a video call link.
In brief
Already declined for supplementary insurance? Start here — before any booking.
- Your basic insurance
- Every insurer must accept you, whatever your health — no questionnaire, no exclusions (Art. 5 lit. i KVAG). A supplementary decline does not change that.
- The decline itself
- A supplementary decline is a private insurer's decision under contract law (VVG). There is no right to be accepted, and no appeal can force an insurer to take you.
- If you think it was handled wrongly
- The Ombudsman for health insurance (Ombudsstelle Krankenversicherung, om-kv.ch) advises and mediates in disputes between insured people and their health insurer — basic, supplementary and daily allowance — neutrally and free of charge. It looks at how a case was handled; it cannot make an insurer accept you.
- If you need advice as a patient
- The Swiss patient organisation SPO (spo.ch) advises on medical and dental treatment. The first consultation (30 minutes, by phone or video) is free; further advice is charged.
- If the premium is the problem
- Your canton may reduce it: how to apply for premium subsidies.
- If you are employed
- Ask HR whether your employer has a collective supplementary contract. Whether it eases the health questions depends on that contract, and it works only through an employer — never as an individual application.
When a review with us helps: before you apply; when you hold an offer with an exclusion (Vorbehalt) or a surcharge and want it read; before you give up a supplementary policy you already have; when a partner or child still needs cover. When it doesn't: after declines from several insurers for the same condition a call rarely changes the outcome, and we will say so. No advisor can promise acceptance.
Basic asks no health questions — supplementary does.
There is no medical questionnaire on basic insurance. Your existing condition is irrelevant to basic-insurance acceptance and pricing.
The questionnaire typically asks about consultations, treatments, prescriptions, and hospital stays in the prior 5 years. Partial exclusion (Vorbehalt): standard coverage except for the specific condition, often time-bounded (e.g., 5 years).
Pre-existing conditions — step by step.
-
Confirm what basic insurance covers regardless
Basic insurance (KVG) is open to everyone. Article 25 KVG fixes the catalogue of medical care every Swiss basic insurer must cover; Article 5 KVAG requires every basic insurer to accept every Swiss resident regardless of nationality, age, or health history. There is no medical questionnaire on basic insurance. Your existing condition is irrelevant to basic-insurance acceptance and pricing.
Tip If supplementary acceptance proves difficult, basic insurance plus careful self-funded supplementary-style spending can be a complete strategy. Don't conflate the two layers.
-
Map your specific condition against supplementary categories
Supplementary insurance under VVG comes in distinct product categories: hospital supplementary (semi-private, private, worldwide), outpatient supplementary (complementary medicine, glasses, dental, prevention contributions), daily-allowance for accidents, travel insurance. Underwriting is product-specific — a chronic back condition might be excluded on hospital supplementary but accepted on outpatient. Map the condition to the products that matter to you.
-
Apply during the clean 30-day window where possible
If you've just arrived in Switzerland, the strongest application window is the first 30 days after cantonal registration. No Swiss medical history exists yet; the questionnaire asks about prior medical events, but disclosure of overseas history is bounded and underwriters often weight Swiss-claims absence positively. Once Swiss claim records start (a single specialist consultation creates one), the underwriting math changes.
-
Disclose honestly — accuracy protects long-term coverage
Article 4 VVG requires you to disclose all material medical history in the application questionnaire. Material misrepresentation — even by omission — gives the insurer the right to terminate the contract or refuse claims at any point during its life (Art. 6 VVG). The temporary saving from undisclosed history compounds into an existential coverage risk later. Disclose fully; let the underwriter decide.
Tip The questionnaire typically asks about consultations, treatments, prescriptions, and hospital stays in the prior 5 years. Be specific; if uncertain, ask the insurer in writing what level of detail they require.
-
Understand the realistic outcomes
After the questionnaire, the insurer typically reaches one of three positions. Clean acceptance: standard premium, full coverage. Partial exclusion (Vorbehalt): standard coverage except for the specific condition, often time-bounded (e.g., 5 years). Decline: no contract offered. Premium surcharge (Risikozuschlag) — standard coverage with a percentage premium loading — is the rare fourth outcome; in practice most Swiss insurers don't offer it. Sanitas is one that does. Most decline borderline cases outright rather than load. The clean/exclude/decline triad is the working reality.
Tip Don't expect surcharge as a likely middle ground. Plan for clean-or-decline-or-exclude; treat surcharge offers (Sanitas makes them, for one) as a useful exception when they appear.
-
Compare insurer underwriting outcomes — they vary
Swiss insurers underwrite the same condition differently. Some treat depression conservatively (frequent exclusion); some accept with surcharge. Some treat thyroid conditions cleanly; some load. Apply to multiple insurers simultaneously if the case is borderline, then choose from the actual offers received — not from anticipated outcomes. The underwriting outcome is what matters; the brand isn't.
-
Plan around exclusions if you receive them
A 5-year exclusion on a specific condition is workable architecture, not a dead end. Stack: basic insurance (already accepted) + the supplementary product with the exclusion (covers everything else) + budgeted self-funding for the excluded condition. After the exclusion expires, the coverage opens. Don't reject a partial-exclusion offer reflexively — it's often a better outcome than no supplementary at all.
-
Book the contract review before signing
Before signing any supplementary contract — clean or with surcharge or exclusion — read the actual contract document, not the application response letter. The contract is the binding text; the questionnaire response is the basis. Surprises happen at the contract level (different exclusion wording than expected, different surcharge calculation, different waiting periods). The 45-minute review reads the contract before you sign.
What we catch every week.
Trap 01
The under-disclosure trap
Households omit a prior consultation thinking it was minor. The insurer treats material omission as grounds to void the contract years later (Art. 6 VVG). The temporary saving compounds into existential coverage risk.
Trap 02
The single-insurer trap
Households apply to one insurer, get a decline, conclude supplementary isn't possible. Different insurers underwrite the same condition differently — the same case can produce a clean accept at one insurer and a decline at another.
Trap 03
The wait-until-healthier trap
Households delay applying, hoping the condition will resolve. Swiss medical records grow during the wait; the questionnaire scope expands with each consultation. The clean-window opportunity closes — it doesn't reopen.
Trap 04
The basic-only resignation
Households who get declined on supplementary conclude they have no options. Basic insurance plus structured self-funding for likely care is a complete strategy — not a fallback. We say so when that's the right answer.
These four are specific to this topic. The four we check in every review — from the age-curve trap to the 3-month deadline — are in the four traps deep-dive.
A real-pattern case.
Anonymised pattern
An expat household relocates from London to Zürich. One adult age 38 has a treated thyroid condition (controlled with daily medication for 6 years; no hospitalisation, no specialist follow-ups beyond annual). The household applies for basic insurance immediately (Art. 5 KVAG mandatory acceptance — no questionnaire). They want hospital semi-private supplementary. Three insurers are approached simultaneously within the first 30 days of cantonal registration. Outcomes received: Insurer A — clean acceptance, standard premium. Insurer B — accepted with a 5-year partial exclusion for thyroid-specific care (everything else covered). Insurer C — declined entirely. The household selects Insurer A's clean offer. Without the multi-insurer simultaneous application, they would have chosen between B's exclusion and C's decline — the clean A outcome would never have surfaced.
Aggregated from real client patterns. Names anonymised; figures illustrative.
Beyond this guide — the 45-minute review.
The 45-minute review with Robert covers what the questionnaire alone doesn't tell you. How insurers tend to word and weigh a given condition — without any promise of an outcome. How to draft the disclosure honestly without over-narrating non-material history. Whether to apply to the supplementary you really want or stage applications across products. The contract read before signing — actual exclusion wording, surcharge calculation, waiting periods. And what the alternative architecture looks like if a clean application isn't achievable: basic-only, plus structured self-funding, plus revisiting in 24–36 months. What it does not do: get an application accepted. That is the insurer's decision, and after several declines for the same condition a review rarely changes it.
Robert Kolar
Insurance advisor — health insurance specialist
20+ years in Swiss insurance. Reads the basic and supplementary contract for every review. The 45-minute review covers the four-lever framework applied to your address, age, household and existing coverage. German, English, Czech.
Common mistakes.
Omitting consultations as 'minor'
The questionnaire treats material disclosure as binary; insurers void contracts on partial omission years later under Art. 6 VVG. Disclose fully; let the underwriter judge materiality.
Applying to one insurer only
Underwriting outcomes vary materially between insurers on the same condition. Single-insurer application means accepting the first outcome regardless of whether it's the cleanest available.
Delaying the application
Waiting for the condition to 'look better' means more Swiss medical records accumulate — the questionnaire scope grows, not shrinks. The clean-window opportunity closes.
Rejecting Vorbehalt reflexively
A 5-year exclusion on a specific condition with standard cover for everything else is often the right architecture — not a failed outcome.
Confusing basic and supplementary
Basic acceptance is mandatory under Art. 5 KVAG and unaffected by health history. Supplementary is the layer where pre-existing conditions matter; the two operate under different statutes.
Expecting surcharge as a middle ground
Risikozuschlag is rare in Swiss VVG — Sanitas is one insurer that offers it. Most insurers decline borderline cases outright. Plan for clean-or-decline-or-exclude; treat surcharge offers as bonus.
Frequently asked — pre-existing conditions.
I was declined for supplementary insurance — can anyone force the insurer to accept me?
Can I get Swiss health insurance with a pre-existing condition?
What does 'Vorbehalt' mean on Swiss supplementary insurance?
What is a Risikozuschlag on Swiss supplementary insurance?
Should I disclose a condition I had abroad before moving to Switzerland?
How long is the clean application window after I move to Switzerland?
Will applying to multiple insurers simultaneously hurt my application?
What if all supplementary applications get declined?
Does the Hausarzt/HMO/Telmed model affect supplementary acceptance?
Can I add supplementary later if I'm denied at first application?
Is the supplementary application questionnaire the same across insurers?
Pre-existing conditions, read properly.
We've been running supplementary-insurance reviews for expats with pre-existing conditions since 2017. The clean-window timing, the multi-insurer simultaneous application, the disclosure-honesty drafting, the contract read before signing, the partial-exclusion architecture when that's the right outcome. Free, 45 minutes, in English, with Robert. We say 'partial exclusion is workable' more often than the market suggests — the alternative architecture is usually better than no supplementary at all. If you have already been declined by several insurers, start with the routes at the top of this page — a call rarely changes that outcome.
Book your first Swiss insurance review