A 5-year-old boy has been hospitalized unconscious. According to his parents, the child has a 2-year-long history of severe decompensated type 1 diabetes mellitus. Objectively, the skin is dry, its turgor is reduced, there is a smell of acetones from the oral cavity, Kussmaul breathing is observed. Blood pressure 100/60 mm Hg, heart rate 100/min. Blood glucose 16.4 mmol/L. What type of coma has developed in the child?