Table 1

Study cohorts

ICD-9Codes and description for malnutrition (N=801 272)Percent*
263.9Unspecified protein-calorie malnutrition74.76
263.0Moderate malnutrition14.56
262Other severe, protein-calorie malnutrition9.68
263.1Mild malnutrition8.24
261Nutritional marasmus8.04
263.8Other protein-calorie malnutrition5.58
260Kwashiorkor4.27
783.22Underweight2.95
263.2Arrested development following protein-calorie malnutrition0.50
263Other unspecified protein-energy malnutrition0.07

  • *Beneficiaries could have one or more ICD-9 codes. The transition to ICD-10 codes was in 2015 and thus was not used in this analysis.

  • ICD-9, International Classification of Diseases, Ninth Revision.