Type Alias: NdcStatus

NdcStatus = "active" | "obsolete" | "alien" | "unknown"

The temporal status of an NDC↔RXCUI mapping (RxNav getNDCStatus: ACTIVE / OBSOLETE / ALIEN / UNKNOWN). An NDC found in the loaded release's RXNSAT attributes is active as of that release; obsolete / alien come from the RxNav NDC-history data (a differential / BYO source, not the base RRF concept files) and are surfaced only when the caller supplies them - the engine never fabricates a non-current status.