CPV code 33631500 designates Corticosteroids for dermatological use and dermatological preparations in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
33631500 is a leaf code — the most specific level of its branch — so it can be used directly as the main CPV code of a contract notice. If it does not quite fit, check the neighbouring codes under 33631000 (Medicinal products for dermatology).