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Sick Leave Online in 3 Simple Steps – How to Obtain It?

Martyna Nowacka
Author: Martyna Nowacka
Created: 4 lipiec 2026 4 lipiec 2026

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L4 online in 3 simple steps is currently one of the most frequently chosen forms of obtaining a medical certificate. Thanks to telemedicine solutions, patients can consult with a doctor without leaving home, and the e-ZLA goes directly to the insurance system, as confirmed by studies on the effectiveness and safety of remote care.

  • Online sick leave has the same legal power as one issued in person.
  • The doctor’s decision is always based on a medical assessment.
  • The e-ZLA system is integrated with ZUS and the employer.
  • Research confirms the safety of telemedicine in specific indications.

See also: E-prescription for reimbursed medications – how does it work?

What is L4 online and how does the e-ZLA system work?

L4 online is a way to obtain a medical certificate through telemedicine, without the need for a personal visit to the office. Legally and medically, it is equivalent to a traditional sick leave, and its electronic form is e-ZLA.

Studies published in the “Journal of Medical Internet Research” show that decisions about temporary incapacity for work made during remote consultations are consistent with decisions made during in-person visits, provided that the medical interview is conducted thoroughly. The doctor bears full professional responsibility for each issued decision.

The e-ZLA system automatically transmits information to ZUS, which reduces formal errors and streamlines the handling of benefits, as confirmed by analyses of European e-health systems.

Step 1: registration on the telemedicine platform

The first step is to choose and register on the appropriate telemedicine platform. This process involves creating an account and filling out a medical form, which serves as a preliminary step to consulting with a doctor.

Research on the organization of teleconsultations indicates that the preliminary health questionnaire improves the quality of the interview and allows the doctor to better prepare for the consultation. The data provided by the patient is secured according to information protection standards, and data encryption is one of the key elements of the security of telemedicine systems.

At this stage, the patient describes symptoms and their impact on the ability to work, which forms the basis for further assessment.

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Step 2: online consultation and doctor’s decision

The second step is an online consultation with a doctor, during which a detailed medical interview is conducted. It is at this stage that the doctor assesses whether the patient’s health condition meets the criteria for temporary incapacity for work.

Analyses published in “BMJ Open” confirm that the medical interview is the basis for most adjudicative decisions, both in stationary and remote care. If the symptoms do not justify a sick leave, the doctor is obliged to refuse to issue it or suggest another form of contact.

An online consultation does not mean automatic receipt of L4, but a full medical assessment in accordance with current clinical knowledge.

Step 3: issuing e-ZLA and sending it to ZUS

If the doctor finds medical indications for sick leave, they issue e-ZLA in the electronic system. This document is immediately sent to ZUS and made available to the patient in the information systems.

System studies show that automatic data transmission reduces the number of administrative errors and eliminates the need for the patient to deliver the sick leave to the employer. Information about incapacity for work reaches the appropriate institutions without additional formalities.

From the patient’s perspective, this means a simplified procedure and faster access to entitled benefits.

Can you obtain L4 online without examinations? We answer!

L4 online in 3 simple steps: Q&A

Is L4 online as important as traditional sick leave?
Yes, e-ZLA has full legal power and is recognized by ZUS and the employer.

Can every patient receive sick leave online?
No, the decision always depends on the doctor’s assessment and the patient’s health condition.

Does the employer see that the sick leave was issued online?
No, the employer receives only information about the sick leave, without data on the form of consultation.

Sources

  • Journal of Medical Internet Research – studies on the effectiveness of telemedicine.
  • BMJ Open – analyses of adjudicative decisions in remote care.
  • World Health Organization – reports on the digitization of health care.
  • Publications from the European Union regarding the e-ZLA system and e-health.
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