Table 1

Predictive value of ICD-9-CM codes for identification of hypoglycemia

ICD-9-CM Code
n (%)
Confirmed Cases (%)
PPV (95%CI)

250.30
1 (0.2)
1 (0.2)
100%
250.8x
586 (86)
363 (83)
62% (58–66)
     Co-diagnoses absent*
385 (57)
353 (81)
92% (88–94)
251.10
3 (0.4)
2 (0.5)
67% (9–99)
251.20
64 (9)
56 (13)
88% (77–94)
775.60
1 (0.2)
1 (0.2)
100%
962.30
24 (4)
13 (3)
54% (32–74)
Algorithm+
477 (70)
425 (97)
89% (86–92)
Total
679
436
64% (60–68)

ICD-9-CM – International Classification of Diseases, Ninth Revision; n – number; CI – confidence interval; PPV – positive predictive value.

* Co-diagnoses are: 259.8, 272.7, 681.xx, 682.xx, 686.9x, 707.xx, 709.3, 730.0–730.2, and 731.8.

+ Predictive value of proposed algorithm (see Figure 1)

Ginde et al. BMC Endocrine Disorders 2008 8:4   doi:10.1186/1472-6823-8-4