Outpatient before inpatient

What is “outpatient before inpatient”?

“Outpatient before inpatient” is a principle of Swiss health policy and, since 2019, a specific rule of basic health insurance. It states: if a planned procedure can be carried out just as well medically without an overnight stay in hospital, it should be carried out on an outpatient basis. You arrive in the morning, have the operation and go home the same day. Inpatient treatment with at least one night in a hospital bed is reserved for cases in which it is really necessary.

At federal level, however, the principle only applies as a rule with financial consequences to a defined list of procedures. This list is set out in Annex 1a of the Health Care Benefits Ordinance (KLV). For all other treatments, the doctor and the patient decide as before whether treatment is outpatient or inpatient; the insurer checks as usual whether the treatment is effective, appropriate and cost-effective.

The rule concerns elective procedures, in other words planned, non-urgent operations on people whose state of health is stable in principle. Emergencies are not covered by it. It applies to everyone with basic health insurance, regardless of insurer, model or deductible.

Why this matters: according to the FOPH, carrying out these procedures on an outpatient basis usually costs well under half as much as inpatient treatment. The rule is intended to avoid unnecessary overnight stays in hospital and thus reduce costs without lowering quality.

How it works

The list of procedures

Annex 1a KLV, section I, in the version of 01.01.2026, lists 18 groups of procedures from eight specialist fields. The individual procedures are identified by codes from the Swiss Classification of Surgical Procedures (CHOP).

The exception criteria

Section II of Annex 1a lists circumstances that justify inpatient treatment. If one of them is met, basic health insurance pays for the hospital stay. They include, among others:

• Age: children up to 3 years; up to 18 years if opiate therapy is needed after the operation.
• Concomitant illnesses: for example heart failure from NYHA stage III, severe lung or kidney disease, blood clotting disorders, severe obesity (BMI of 40 or more) or diabetes that is difficult to control.
• Social reasons: no adult carer in the household or available nearby at short notice during the first 24 hours after the operation, no means of transport home or a travel time of more than 60 minutes to a hospital with a 24-hour emergency department.

Additional or stricter thresholds apply to some procedures, for example a BMI above 35 for pacemakers. The list is not exhaustive: if there is another special circumstance, the hospital obtains cost approval in advance. The insurer then decides on the recommendation of its medical adviser. If complications arise during or after an operation planned as outpatient treatment, a hospital stay is of course possible.

Cantonal lists

In the FOPH’s view, the cantons may adopt further-reaching rules. So if you have a procedure planned, ask whether additional requirements apply in your canton of residence.

Legal basis

The rule is set out in Art. 3c KLV. If an elective procedure under Annex 1a section I is carried out on an inpatient basis, the insurance only covers the costs if outpatient treatment is not appropriate or not cost-effective because of special circumstances (para. 1). This is the case if a criterion under Annex 1a section II is met (para. 2). In other circumstances, special approval must be obtained from the insurer in advance, which takes into account the recommendation of its medical adviser (para. 3). The FOPH publishes the annex on its website (para. 4).

The basis in the law is Art. 32 para. 1 of the Federal Health Insurance Act (KVG): benefits of basic health insurance must be effective, appropriate and cost-effective. The financing of inpatient treatment by the canton and the insurer is governed by Art. 49a KVG; today the canton pays at least 55%. Until the end of 2027, outpatient treatment is paid for by the insurer alone. With uniform financing (EFAS), both areas will be financed according to the same formula from 01.01.2028.

Example: hernia operation

Marco is 52 years old, has a CHF 2,500 deductible and is having a one-sided inguinal hernia operated on. The procedure is on the list in Annex 1a KLV. What happens next depends on his situation.

That is why it is worth Marco having a conversation before the operation: he clarifies with the surgeon whether a criterion applies to him and, if not, arranges for someone to be with him on the first night at home.

What this means for you

If you have a planned procedure coming up, clarify three questions in advance:

1. Is the procedure on the list? Ask the surgeon or look at the FOPH list. The rule does not apply to procedures outside the list.
2. Does an exception criterion apply? Concomitant illnesses, age or care at home can justify an overnight stay. The hospital must document the reason.
3. Who obtains the cost approval? If no criterion applies and you still consider an inpatient stay necessary, the hospital must ask the insurer in advance. Without approval, you risk the insurer not paying.

An outpatient operation saves you the hospital contribution of CHF 15 a day. The deductible and retention fee apply in both cases. If you are planning an operation for next year, it is worth looking at your deductible: you must notify a lower deductible by 30 November, and the dates are under deadlines. The premium calculator shows how your deductible and model affect your premium; you will find information on the individual insurers under health insurers.

If you have supplementary hospital insurance, check its conditions: it decides for itself whether it pays for a hospital stay without a medical reason. We explain separately how outpatient procedures are billed with outpatient flat rates.

Common mistakes

• Thinking the rule is a ban. Inpatient treatment remains possible if a criterion is met or the insurer agrees in advance.
• Not arranging care at home. If there is no adult carer for the first 24 hours, that is a recognised criterion. Tell the hospital before the operation.
• Believing the rule applies to all operations. It only concerns the 18 groups in Annex 1a KLV and any cantonal requirements.
• Confusing emergencies with planned procedures. The rule does not apply to an emergency involving a strangulated hernia.

We explain how we calculate our examples under how we calculate.