TABLE 3.
Positive Predictive Value (PPV) of Individual International Classification of Diseases, Ninth Revision (ICD-9), Codes for Blood or Body Fluid Exposure Emergency Department (ED) Visits and Visits Missed because of Exclusion of Codes from Search
| ICD-9 code | PPV for ED visits for blood or body fluid exposure (95% CI) |
Proportion of ED visits for blood or body fluid exposure missed if code was excluded from database search, % (95% CI)a |
|---|---|---|
| Other specified prophylactic measure (V07.8) | 5.4 (3.4–8.4) | 0.4 (0.2–0.6) |
| Unspecified prophylactic measure (V07.9) | 9.1 (1.6–37.7) | 0.0 (0.0–0.2) |
| Other communicable diseases (V01.8) | 10.6 (8.0–14.0) | 1.0 (0.7–1.4) |
| History of physical abuse (V15.41) | 15.0 (5.2–36.0) | 0.1 (0.0–0.2) |
| Other viral diseases (V01.7) | 23.4 (18.5–29.1) | 1.1 (0.8–1.5) |
| Observation following alleged rape or seduction (V71.5) | 89.8 (88.3–91.1) | 39.1 (37.6–40.7) |
| Exposure to potentially hazardous body fluids (V15.85) | 90.5 (88.7–92.0) | 22.0 (20.7–23.4) |
| Child sexual abuse (995.53) | 90.8 (86.5–93.8) | 2.7 (2.2–3.3) |
| Hypodermic needle (E920.5) | 92.0 (90.3–93.5) | 19.1 (17.9–20.4) |
| Adult sexual abuse (995.83) | 93.8 (85.0–97.5) | 1.0 (0.7–1.3) |
NOTE. CI, confidence interval.
a
Proportions do not total to 100% because some visits could be captured by another ICD-9 code.