The need for additional external financing to cover the budget deficit of Ukraine in 2023 is currently $10 billion, the opening of a full-fledged long-term program with the support of the International Monetary Fund (IMF) will help reduce this deficit, maintain macroeconomic and financial stability, Finance Minister Serhiy Marchenko has said at a meeting with IMF Managing Director Kristalina Georgieva in Kyiv on Monday.