Primary Medical Discharge Diagnosis Categories Based on Major Diagnostic Criteria for APR-DRG and ICD-9

VariableValue (N = 305)a
Major diagnostic criteria, n (%)
 Mental diseases and disorders57 (19)
 Diseases and disorders of the nervous system52 (17)
 Diseases and disorders of the digestive system47 (15)
 Endocrine, nutritional, and metabolic diseases and disorders26 (8)
 Poisonings, toxic effects, other injuries, and other complications of treatment24 (8)
 Diseases and disorders of the musculoskeletal system and connective tissue22 (7)
 Diseases and disorders of the circulatory system19 (6)
 Diseases and disorders of the respiratory system14 (5)
 Diseases and disorders of the kidney and urinary tract11 (4)
 Diseases and disorders of blood, blood-forming organs, and immunologic disorders7 (2)
 Rehabilitation, after care, other factors influencing health status and other health service contacts6 (2)
 Diseases and disorders of the hepatobiliary system and pancreas5 (2)
 Ear, nose, mouth, throat, and craniofacial diseases and disorders4 (1)
 Other11 (4)
Case-mix index
 Median (IQR)0.88 (0.58–1.33)
  • ICD-9, International Classification of Diseases, Ninth Revision.

  • a Data available for 305 of 308 psychiatric consultations.