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Table 1 US Estimates of Number of Hospitalized Strokes by ICD-9-CM Code for Principal or Secondary Diagnoses

From: Incidence and Characteristics of Total Stroke in the United States

ICD-9 Definition Estimated PPVa Weighted count US Estimate US Estimate
    in 1996 in 1996 in 1995b
430 Subarachnoid hemorrhage 39/47 = 83% 28,604 23,735 23,389
431 Intracerebral hemorrhage 86/101 = 85% 87,072 74,141 71,582
432 Other and unspecified 1/24 = 4% 26,129 1,089 1,031
  intracranial hemorrhage     
433 Occlusion and stenosis of 91/607 = 15% 368,864 55,299 51,371
  precerebral arteries     
434 Occlusion of cerebral arteries 573/701 = 82% 460,173 376,147 353,493
435 Transient cerebral ischemia 43/351 = 12% 257,384 31,531 29,555
436 Acute but ill-defined 230/318 = 72% 181,842 131,521 133,278
  cerebrovascular disease     
437 Other and ill-defined 11/134 = 8% 140,678 11,548 11,328
  cerebrovascular disease     
438 Late effects of cerebrovascular 5/360 = 1% 531,259 7,379 6,975
  disease     
  Estimated number of    712,390 682,002
  hospitalized strokes     
  1. aThe estimated PPV values are taken from Williams et al[8], TABLE 1. bThe US estimates in 1995 are taken from Williams et al [8], TABLE 2.