Hospital bills: why they don't explain everything

Context

In brief

• Hospital bills don't show diagnoses and walkthroughs
• DRG financing system since 2012: hospital does not bill individual services
• Diagnoses transformed into classification codes in the SwissDRG catalogue
• Patient should ask for coding report to understand clinical details

Key Facts

• What: Hospital bills that omit clinical details about diagnoses and procedures
• When: Starting from 2012 (introduction of the financing system)
• Where: Swiss hospitals (all acute admissions)
• Who: Hospitals, hospitals, SwissDRG, Swiss Patient Organisation
• Tool: DRG (Diagnosis-Related Groups) catalog; classification into predefined categories

How much can you really understand from a hospital bill received in Switzerland? In theory, the principle is simple: after a hospitalization, the patient receives a copy of the document and can check how much he has been charged, check for any errors and understand the composition of the expense. A mechanism designed to ensure transparency.

In practice, however, the situation is much more complex. For those who are unfamiliar with how the Swiss healthcare system works, it can be almost impossible to reconstruct where the figures on the bill come from. The main reason: the financing system introduced in 2012.

For acute hospitalizations, hospitals do not simply bill for every single service performed. Instead, the patient is placed in a category based on the diagnosis and procedures performed. That category corresponds to a predetermined amount.

How the DRG system works

After discharge, the clinical information is converted into codes. These allow hospitalization to be classified together with other cases that are considered medically similar. Each group corresponds to a certain cost, which is then related to the basic rate of the hospital.

This is where another important variable comes into play: the basic tariff is not necessarily the same in all Swiss hospitals. It is renegotiated every year and can differ from one facility to another. The final bill amount thus represents a significant element of the healthcare costs for the patient. According to Simon Hölzer, CEO of SwissDRG, "different costs can arise for the same clinical case depending on the facility."

The information gap on the invoice

The invoice that the patient receives can be formally corrected and verifiable through the SwissDRG catalog. But it does not tell the entire path that led to that figure. In fact, the document does not report the diagnoses and detailed procedures used to determine the code assigned to hospitalization.

To better understand the process, it is therefore necessary to request additional documentation from the hospital, such as the coding report or the discharge report. The decision not to include all the details in the invoice is also partly related to data protection. As Hölzer points out, "an invoice is an administrative document that is often processed by non-medical personnel." Including sensitive diagnoses in a document managed by several people would entail risks of privacy violations.

It is not surprising that hospital bills are a frequent source of questions for the Swiss Patients' Organisation. In case of doubt, the first point of contact is the hospital's billing department.

Operational details

The role of the health insurer

If you are unable to clarify directly with the hospital, you can also contact your insurer malattia. According to the health insurance association Prio Swiss, insured persons have the right to request a review of the invoice. Any corrections are made, but "often discreetly and not always visible to the insured person".

This aspect reveals a structural limitation of the system: the control of hospital bills does not necessarily take place in a transparent way towards the patient. The insurer's review takes place behind the scenes, without the patient always being informed of the outcome or the changes made. It is a situation that does not help the patient's understanding, even if formally the right to dispute is guaranteed.

Transparency vs. data protection

There is an unresolved conflict between two fundamental needs: transparency towards the patient and the protection of personal data. If the invoice included detailed diagnoses and specific procedures, the document would become more understandable but would circulate among more people (administrative staff, back-office staff, possible intermediaries), increasing the risk of leakage of sensitive information.

Hospitals and healthcare providers have opted for a trade-off: keeping clinical details out of the printed bill, forcing the patient to actively request additional documentation if they want to understand the classification. It's a trade-off that prioritizes the security of personal data over the immediate convenience of understanding.

Trust as the basis of the system

This operational choice means that the Swiss hospital billing system is fundamentally based on trust. The patient receives a document that says "you have received services, here is the amount", but does not have the immediate means to independently verify the correctness of the categorization and the tariff applied.

The Swiss Patients' Organization has clearly pointed out the problem: the system is not transparent. A law professor quoted in the source also admits the same thing. The official recognition that the mechanism does not work perfectly in terms of communication to the patient is a first step towards possible improvements.

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Key points

First step: the hospital billing office

If you receive a hospital bill and do not understand how it was calculated, the first step is to contact the billing office of the facility where you were admitted. Ask them to explain the reason for the categorization and the base fee applied. They have the obligation to respond and provide you with access to the documents that led to the invoice (coding report, discharge report).

Second step: request clinical documentation

If you are not satisfied with the hospital's explanations, you can formally request:

• The coding report: the document that explains which diagnoses and procedures were recorded in your case
• The discharge report: the complete clinical documentation of your stay

These documents contain details that do not appear on the invoice and allow you to check if the DRG classification is correct. They are yours by right and the hospital cannot deny access.

Third step: escalation to the insurer

If you believe that the invoice is incorrect or that the tariff has been calculated incorrectly, you can ask your health insurer to carry out a review. The insurer has the tools and expertise to check whether the invoiced amount is consistent with the SwissDRG catalogue and the basic tariff of the hospital.

According to Prio Swiss, the insurance association, policyholders explicitly have the right to request a review. It is important to know that this right exists and that you can exercise it free of charge. Submit your request in writing, attaching documentation that supports your dispute.

Fourth step: further escalation

If the insurer does not solve the problem to your satisfaction either, you can contact the Swiss Patients' Organisation, which offers advice and guidance on hospital billing issues and patient rights in Swiss healthcare.

Practical checklist

✓ Request clarification from the hospital billing office ✓ Ask for a copy of the coding report and discharge report ✓ Compare the codes used with the SwissDRG catalogue (public) ✓ If you find any discrepancies, please contact your health insurer ✓ Ask for a formal review of the invoice in writing

Transparency in the Swiss healthcare system is not automatic: you have to activate it. Knowing these steps and your rights is the first step to really understanding what you are paying when you receive a hospital bill.

You can find out more about how premiums and health cover work in Switzerland in our guide to health insurance.

Source: tio.ch