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Table 1 Categories of Ambulatory Care Sensitive Conditions (ACSC) used to evaluate the capacity of Primary Care to avoid hospitalizations

From: Geographic variations in avoidable hospitalizations in the elderly, in a health system with universal coverage

Vaccine-preventable diseases and other diseases ICD-9 Codes
1. Diphtheria 32
2. Tetanus 37
3. Acute poliomyelitis 45
4. Homophiles meningitis 320.0
5. Rheumatic fever 390; 391
Syphilis  
6. Congenital syphilis 90
Tuberculosis  
7. Other tuberculosis 012–018
Diabetes  
8. Diabetes with general complications 250.1; 250.2; 250.3
9. Hypoglycemic coma 251.0
10. Gangrene+ diabetes with peripheral circulatory disorders 785.4 + 250.7
Disorders of fluid, electrolyte, and acid-base balance  
11. Volume depletion/dehydration 276.5
12. Hypotassemia 276.8
Acute respiratory infections  
13. Peritonsillar abscess 475
Hypertensive cardiovascular disease  
14. Malignant essential hypertension 401.0
15. Malignant hypertensive kidney disease 403.0
16. Malignant hypertensive heart and kidney disease 404.0
17. Malignant secondary hypertension 405.0
18. Ischemic heart disease 410 – 414
19. Cerebrovascular disease 430; 431; 436; 437.2
Congestive heart failure (CHF)  
20. Malignant hypertensive heart disease with CHF 402.01
21. Benign hypertensive heart disease with CHF 402.11
22. Hypertensive heart disease, unspecified, with CHF 402.91
23. Heart failure 428
24. Acute pulmonary edema, unspecified 415.4
Pneumonia  
25. Pneumonia due to Hemophilus influenza 482.2
26. Pneumonia due to Streptococcus 482.3
27. Pneumonia due to other specified organism 483
28. Bronchopneumonia/Pneumonia, organism unspecified 485; 486
Bleeding or perforated ulcer  
29. Acute or chronic gastric ulcer or unspecified. 531.0; 531.2; 531.4; 531.6
30. Acute or chronic duodenal ulcer or unspecified 532.0; 532.2; 532:4; 532.6
31. Peptic ulcer, site unspecified, acute or chronic or unspecified 533.0; 533.2; 533.4; 533.6
Acute appendicitis with complications  
32. Acute appendicitis with generalized peritonitis 540.0
33. Acute appendicitis with peritoneal abscess 540.1
Urinary tract infections  
34. Acute pyelonephritis 590.1
Pelvic inflammatory disease  
35. Inflammatory disease of ovary, fallopian tube, pelvic cellular tissue and peritoneum 614
  1. Source: Caminal et al [10]