This Healthcare Cost and Utilization Project (HCUP) Statistical Brief supplements a recent HCUP Statistical Brief that describes inpatient hospital stays among patients with six types of malnutrition: postsurgical nonabsorption, nutritional neglect, cachexia, protein-calorie malnutrition, weight loss or failure to thrive, and underweight. The current Statistical Brief presents additional information on the all-cause 30-day rate of readmissions following an initial inpatient hospital stay for patients with malnutrition in the United States in 2013, following the same typology of malnutrition presented in the earlier Statistical Brief.