Dejan Petrovic has been the President of the Board of the Serbian Haemophilia Society (SHS) since December 2017. Prior to that, he was the Vice President of the Board, while he has been a member of the SHS since its establishment in 2000.

During his activism in the SHS he has participated in numerous congresses, conferences, seminars, workshops in the country and abroad, and in the last few years his activities have focused on the procedure of public procurement of drugs for hemophilia, media activities and communication and negotiations with authorities. Through workshops, lectures and panel discussions, he transferred knowledge and experiences from the procedure of public procurement of drugs for hemophilia in the country and abroad, as well as experiences from advocating for patients' rights and negotiation with authorities.

He has been a long-term member of the Public Procurement Committee of Medicines for Hemophilia and the National Hemophilia Committee.

He is a lawyer, has been working as legal advisor with National Employment Service, married, the father of two and person with severe form of Hemophilia A.