What is behind BNO codes? The paper focuses on adolescents with various forms of self-injurious behaviour, who often flounce between the health and social care systems while looking for a way out and on those professionals who often overcome competence limits to compensate service deficiencies and their disadvantages. Beyond the world of codes, the study aims to find answers from where young people can get help who are not in the professional’s horizon or even need additional support after their hospital treatment; also that in this mainly health care-related question what is the role of social work.