Table 3.
RxNorm drug products (not mutually exclusive) without VHA Drug Class assignments
| Mapping type | % of RxNorm drugs without a VHA Drug Class assignment (n=18228) |
| Direct-Map | 53% (9711) |
| Drug-Level-Map | 55% (10060) |
| Ingredient-Level-Map | 49% (8893) |
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