Table 3 Distribution of ambulatory care visits in 2002 by principal diagnosis
Diagnosis | Code range in ICD-9-CM* | No. of visits (%, n = 2,443,003) | No. of patients (%, n = 182,474) |
|---|---|---|---|
Infectious and parasitic diseases | 001–139 | 55,152 (2.3) | 26,734 (14.7) |
Neoplasms | 140–239 | 34,307 (1.4) | 8,598 (4.7) |
Endocrine, nutritional, and metabolic diseases and immunity disorders | 240–279 | 75,787 (3.1) | 14,614 (8.0) |
Diseases of the blood and blood-forming organs | 280–289 | 4,520 (0.2) | 1,917 (1.1) |
Mental disorders | 290–319 | 42,345 (1.7) | 8,474 (4.6) |
Diseases of the nervous system and sense organs | 320–389 | 177,879 (7.3) | 60,684 (33.3) |
Diseases of the circulatory system | 390–459 | 128,160 (5.2) | 20,980 (11.5) |
Diseases of the respiratory system | 460–519 | 818,672 (33.5) | 130,772 (71.7) |
Diseases of the digestive system | 520–579 | 370,761 (15.2) | 102,540 (56.2) |
Diseases of the genitourinary system | 580–629 | 140,962 (5.8) | 37,763 (20.7) |
Complications of pregnancy, child birth, and the puerperium | 636–076 | 6,890 (0.3) | 2,953 (1.6) |
Diseases of the skin and subcutaneous tissue | 680–709 | 131,872 (5.4) | 47,387 (26.0) |
Diseases of the musculoskeletal system and connective tissue | 710–739 | 171,817 (7.0) | 45,227 (24.8) |
Congenital abnormalities | 740–759 | 2,799 (0.1) | 1,063 (0.6) |
Certain conditions originating in the perinatal period | 760–779 | 94 (0.0) | 64 (0.0) |
Symptoms, signs and ill-defined conditions | 780–799 | 129,573 (5.3) | 48,930 (26.8) |
Injury and poisoning | 800–999 | 131,198 (5.4) | 50,090 (27.5) |
Supplementary classification of factors influencing health status and contact with health services | V01–V82 | 17,942 (0.7) | 12,862 (7.0) |
Supplementary classification of external causes of injury and poisoning | E800–E999 | 726 (0.0) | 489 (0.3) |
Unknown | Â | 1,547 (0.1) | 655 (0.4) |