The logical definition for Sematic Drug Codes is shown as

"Include codes from http://www.nlm.nih.gov/research/umls/rxnorm where TTY = BPCK"

however the summary definition is shown as

"Semantic Drug codes with Term Types (TTY) of Semantic Clinical Drug (SCD), Semantic Branded Drug (SBD), Generic Pack (GPCK), or Branded Pack (BPCK)"

The logical definition should be updated to match the summary definition