Table 4

Distribution of discharge diagnoses grouped by the 10 most common International Classification of Disease, tenth revision (ICD-10) chapters, among the 10 chief complaints with the highest 30-day mortality

Chief complaintICD-10 main chapter (%)
Altered level of consciousness8.921.512.
Gastrointestinal bleeding2.514.51.761.
Focal neurological symptoms5.321.66.41.818.
No contact reason11.
Nausea, vomiting and diarrhea4.
Extremity symptoms without injury2.49.920.50.712.99.17.727.
  • All contacts within each chief complaint are included. Numbers are row percentages; each row equals 100%.

  • ICD-10 chapters are ordered by frequency, with “J” having the highest frequency and “F” the lowest frequency of the shown chapters. The remaining chapters are less frequent and grouped as “others.”

  • J: chapter X: diseases of the respiratory system.

  • R: chapter XVIII: this chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded, for example, “dyspnea” and “chest pain.”

  • S&T: chapter I: injury, poison or other external causes.

  • K: chapter XI: diseases of the digestive tract.

  • I: chapter IX: diseases of the circulatory system.

  • Z: chapter XXI: other factors (unspecific).

  • A&B: chapter I: certain infectious and parasitic diseases.

  • M: chapter XIII: diseases of the musculoskeletal system and connective tissue.

  • N: chapter XIV: diseases of the genitourinary system.

  • F: chapter V: mental and behavioral disorders.