RESUMO
BACKGROUNDS: It is important to know the contents of health problems in patients in a primary care setting. The aim of this study was to explore the main chief complaints and major diagnoses of patients, who were admitted to a hospital using the ICD-10 and to observe difference according to each department and admission route and how diagnoses were made. METHODS: A total of 18,560 patients who were admitted to a hospital located in Chungnam Province from 1 Jan 1998 to 31 Dec 1998. Main chief complaints and major diagnoses made through the admissions departments were chosen as subjects (medical vs. surgical) and by admission route (emergency vs. OPD)were analyzed. How the diagnoses were derived from the most common chief complaints among medical and surgical departments were analyzed by admissions departments and by admission route. RESULTS: The most common 10 chief complaints revealed no significant difference by admission route in medical departments, but there was some difference in surgical departments. There was some difference in the most common 10 major diagnoses by admission routes in both medical and surgical departments. Abdominal and pelvic pain, which was the most common chief complaints, became a significantly different diagnosis by admission route in both departments. CONCLUSION: Main chief complaints were similar regardless of admission routes, but the diagnoses were different. ICD-10 classification may be useful to classify the diagnoses, but have limitations to classify chief complaints or reasons for encounter. It is necessary to introduce a new classification such as ICPC-2 for reasons for encounter in order to explore the dimension of health problems.