CPV code 72232000 designates Development of transaction processing and custom software in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
72232000 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 72230000 (Custom software development services).