Type Alias: TermType

TermType = "IN" | "PIN" | "MIN" | "BN" | "SCDC" | "SBDC" | "SCDF" | "SBDF" | "SCDFP" | "SBDFP" | "SCD" | "SBD" | "SCDG" | "SBDG" | "SCDGP" | "GPCK" | "BPCK" | "DF" | "DFG" | "PSN" | "SY" | "TMSY" | "ET"

A RxNorm term type (TTY) - the kind of drug concept an RXCUI names. These are the RXNCONSO.RRF TTY values relevant to the drug graph, grounded on the NLM RxNorm Technical Documentation (Appendix 5). Carried verbatim on a RxNormConcept; the engine classifies but never re-labels a concept.

PSN / SY / TMSY are Appendix 5's synonym term types: each labels an alternate name on some other concept rather than a concept of its own, so they are part of this vocabulary but can never appear as a loaded RxNormConcept.tty. See ../rxnorm/tty.isSynonymTermType.