Does Swiss health insurance pay for a colonoscopy?

What basic health insurance pays

Basic health insurance pays for a colonoscopy in three situations. Which one applies to you determines whether age limits and intervals apply and whether the deductible (Franchise) is charged.

Screening is an exception in the system. In principle, basic health insurance pays for the examination and treatment of illnesses. It only pays for measures of medical prevention if the Health Care Benefits Ordinance (KLV) lists them expressly (Art. 26 of the Federal Health Insurance Act, KVG). Colorectal cancer screening has been in Art. 12e KLV since 2013; the current version with the list of cantons has applied since 01.07.2026.

The laboratory bills the analysis of the stool test according to the FOPH List of Analyses. The physician or hospital bills the colonoscopy according to the outpatient tariff. Both invoices go through basic health insurance, and the normal co-payment applies to both: first the deductible, then the 10 % retention fee up to a maximum of CHF 700 per year for adults (Art. 64 para. 2 KVG, Art. 103 para. 2 KVV).

The benefits of basic health insurance are the same at all insurers. The only difference is the premium, which you can compare in the premium calculator.

What supplementary insurance pays

For colorectal cancer screening from 50 and for diagnosis of symptoms, you do not need supplementary insurance. A supplementary outpatient insurance can still play a role in three cases:

• Screening outside the KLV rules: If you want a colonoscopy before 50 without symptoms and without a familial risk, or more often than every 10 years, basic health insurance does not pay for it as screening. Some supplementary insurances contribute towards check-ups, usually with a maximum amount per year or per several years.
• Hospital stay: If the colonoscopy is carried out as an inpatient, a supplementary hospital insurance determines the ward (semi-private or private) and the free choice of physician.
• Not the co-payment: No supplementary insurance may cover the deductible or retention fee of basic health insurance (Art. 64 para. 8 KVG).

Supplementary insurance is governed by the Insurance Contract Act (ICA); before you sign, the insurer must inform you about the scope and limits of cover (Art. 3 ICA). We are building a comparison of supplementary products under Supplementary insurance. What counts is the general terms and conditions and the information from your insurer.

Conditions

• Age and interval for screening: Screening applies from the age of 50 to 74. You choose between a stool test every 2 years and a colonoscopy every 10 years. Basic health insurance does not pay for a screening colonoscopy three years after the last one as early detection.
• Medical referral: Screening must be carried out or ordered by a physician (Art. 26 KVG). In the cantonal programme, the programme handles the invitation and coordination.
• Programme or practice: The deductible is waived only if the examination takes place within your canton’s early detection programme. If you have the same screening done directly with your physician, the normal co-payment applies.
• Deductible and retention fee: In all other cases, the invoice first counts towards your deductible, after which you pay a 10 % retention fee up to CHF 700 per year.
• Familial risk: A colonoscopy under Art. 12d KLV requires the criteria set out there: at least three affected first-degree relatives or one person who developed the disease before the age of 30. The physician records them in the referral.
• Symptoms: If you have symptoms, the colonoscopy is a diagnostic examination under Art. 25 KVG. Age limits and intervals then play no role, but neither does the exemption from the deductible.

The KLV lists 16 cantons with an early detection programme (as of 01.07.2026): Basel-Landschaft, Basel-Stadt, Bern, Fribourg, Geneva, Glarus, Graubünden, Jura, Lucerne, Neuchâtel, Solothurn, St. Gallen, Ticino, Uri, Vaud and Valais. If you live in another canton, basic health insurance also pays for screening, but with deductible.

Sample calculation

Example with fictitious people and an assumed invoice amount. Beat, 58, and Monika, 58, both have a screening colonoscopy. Beat lives in Bern and goes through the cantonal programme; Monika lives in Zurich, a canton without a programme in the KLV. Both have a CHF 300 deductible and no other medical costs so far this year. We assume an invoice of CHF 1,000; this is a figure for the calculation, not a tariff. The deductible, retention fee and exemption come from Art. 64 KVG and Art. 12e KLV.

The deductible calculator shows how a planned examination affects your choice of deductible. You change your deductible with effect from 1 January; a lower deductible must reach your insurer by 30 November, and the deadlines are listed under Deadlines.

How to proceed

1. Talk to your GP: Clarify whether it is screening, a familial risk or a diagnostic examination. This determines which rules apply.
2. Check for a programme: If you live in one of the 16 cantons, ask about the cantonal programme and have the examination done through it.
3. Consider your deductible: Outside a programme, the invoice counts towards your deductible. Plan for it if you have a high deductible.
4. Check the invoice: Under tiers garant, you submit the invoice to your insurer; under tiers payant, the service provider bills the insurer directly. Check in the statement of benefits whether the deductible was actually left out in the programme.

Common mistakes

• Thinking screening is free. Even in the programme, you pay a 10 % retention fee. Only the deductible is waived.
• Having screening done outside the programme. If you have the colonoscopy directly with your physician although your canton has a programme, the deductible applies.
• Forgetting the intervals. Stool test every 2 years, colonoscopy every 10 years. Basic health insurance does not pay for more frequent screening without a medical reason.
• Booking symptoms as screening. If you have symptoms, the normal co-payment applies, even in a programme canton.

You will find other screening benefits such as mammography and the general check-up in the overview What does health insurance cover?. Key figures and contact details for the insurers are in the health insurer profiles.