Introduction: Duty of disclosure in outpatient care is of key importance to high-quality medical treatment. Patient awareness and consent to medical treatment are the patient's right, as well as the duty and right of healthcare professionals. Various approaches, types and forms mean the possibility of performing the duty of disclosure in differently effective ways. The obligation to provide disclosure is defined in current laws and codes of ethics. Examples of case law indicate deviations in the performance of the duty of disclosure. Purpose: The purpose of the diploma work is to research the literature on the obligation to perform the duty of disclosure. Methods: A descriptive research method was used with an analysis of the relevant literature and legal sources on the provision and division of the duty of disclosure, including the patient's right to privacy. Results: The presented results are defined according to the current regulation in Slovenia; medical competences are defined by a special law, and nursing care competences are defined in a document on competences approved by the Ministry of Health. Discussion and conclusion: Informed consent studies show that nurses have insufficient knowledge in the field of disclosure duty. Ethical issues and dilemmas arise, as well as the need for education on the performance of the duty of disclosure. In the case of incomplete duty of disclosure, patients experience deviations in medical care. The duty of disclosure and its division in the outpatient medical team are not clearly defined in the content and legal context.