Table 1 Predictive value of ICD-9-CM codes for identification of hypoglycemia
From: Validation of ICD-9-CM coding algorithm for improved identification of hypoglycemia visits
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) |