Table 2.
Sensitivity Estimates of Acute Gastroenteritis ICD-CM Coding
| NVSN, n/N (%; 95% CI) | SUPERNOVA, n/N (%; 95% CI) | |
| ICD code grouping | ||
| All-cause AGE | 7572/13 916 (54.4; 53.6, 55.2) | 368/635 (58.0; 54.0, 61.8) |
| All-cause AGE with vomitinga | 10 484/13 916 (75.3; 74.6, 76.1) | 386/635 (60.8; 56.9, 64.6) |
| Setting | ||
| Inpatient | 1692/2854 (59.3; 57.5, 61.1) | 322/574 (56.1; 51.9, 60.2) |
| ED | 5880/11 062 (53.2; 52.2, 54.1) | 46/61 (75.4; 62.7, 85.5) |
| Site | ||
| 1 | 1020/2409 (42.3; 40.4, 44.3) | 72/104 (69.2; 59.4, 77.9) |
| 2 | 360/1114 (32.3; 29.6, 35.2) | 26/64 (40.6; 28.5, 53.6) |
| 3 | 1190/2499 (47.6; 45.6, 49.6) | 221/350 (63.1; 57.9, 68.2) |
| 4 | 331/551 (60.1; 55.8, 64.2) | 49/117 (41.9; 32.8, 51.4) |
| 5 | 1855/2798 (66.3; 64.5, 68.0) | … |
| 6 | 1564/2811 (55.6; 53.8, 57.5) | … |
| 7 | 1252/1734 (72.2; 70.0, 74.3) | … |
Abbrevations: AGE, acute gastroenteritis; ED, emergency department; ICD-CM, International Classification of Diseases, Clinical Modification; NVSN, New Vaccine Surveillance Network; SUPERNOVA, Surveillance Platform for Enteric and Respiratory Infections in the Veterans Affairs Population.
aRevised all-cause AGE includes vomiting-specific codes.