Patterns of Nonemergent Visits to Different Healthcare Facilities on the Same Day: A Nationwide Analysis in Taiwan

Table 5

Chapter	Diagnosis	Code range in ICD-9-CM
Ch01	Infectious and parasitic diseases	001–139
Ch02	Neoplasms	140–239
Ch03	Endocrine, nutritional, and metabolic diseases and immunity disorders	240–279
Ch04	Diseases of the blood and blood-forming organs	280–289
Ch05	Mental disorders	290–319
Ch06	Diseases of the nervous system and sense organs	320–389
Ch07	Diseases of the circulatory system	390–459
Ch08	Diseases of the respiratory system	460–519
Ch09	Diseases of the digestive system	520–579
Ch10	Diseases of the genitourinary system	580–629
Ch11	Complications of pregnancy, child birth, and the puerperium	630–677
Ch12	Diseases of the skin and subcutaneous tissue	680–709
Ch13	Diseases of the musculoskeletal system and connective tissue	710–739
Ch14	Congenital abnormalities	740–759
Ch15	Certain conditions originating in the perinatal period	760–779
Ch16	Symptoms, signs, and ill-defined conditions	780–799
Ch17	Injury and poisoning	800–999
V	Supplementary classification of factors influencing health status and contact with health services	V01–V82