| Field Name | Format | Description |
|---|---|---|
| PATIENT | Character | *Required Code to identify patient (Cohort Patient ID) |
| VS_ID | Character See Code List | *Required Code representing the viral test type |
| VS_D | YYYY-MM-DD | *Required Date of measurement/sample |
| VS_D_A | Character < = Before this date D = Exact to the date M = Exact to the month Y = Exact to the year > = After the date U = Unknown | Date approximation for VS_D |
| VS_R | Numeric 1 = Positive (including trace, 1+, 2+, etc.) 0 = Negative 9 = Unknown | Measurement result |
| VS_V | Numeric | Measurement value (copies/ml) (HCV-RNA & HBV-DNA only) |
| VS_U | Numeric 1 = copies/mL 2 = IU/mL 3 = Geq (millions of genome equivalent) | Unit of measurement |
| VS_ST | Character WB = Whole blood P = Plasma S = Serum U24 = 24h Urine U = Urine CSF = Cerebrospinal fluid SP = Sputum SA = Saliva UNK = Unknown OTH = Other | Specimen type |