CPV code 90520000 designates Radioactive-, toxic-, medical- and hazardous waste services in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
90520000 sits under 90500000 (Refuse and waste related services) and groups 4 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.