The invention relates to an endoprosthesis component (17) and a method for producingan endoprosthesis component (17). The endoprosthesis component (17) comprisesa body (23) determining the shape of the endoprosthesis component (17). The body(23) is coated with an outer layer (25) on surface sections (22) that are in contactwith human tissue when the endoprosthesis component is in the implanted state,said outer layer comprising a nitride, an oxynitride, or an oxide based on a refractorymetal and comprising silver and/or copper. According to the invention, an intermediatelayer (24) is disposed between the outer layer (25) and the body (23) such thatparts of the intermediate layer (24) are accessible from the exterior. The endoprosthesiscomponent (17) is produced using the method according to the invention. The inventionallows the outer layer (25) to be used to create a long-term antimicrobial actionand, in addition, allows the intermediate layer (24) to act on the surroundingtissue.