CDISC CDASH Substance Use Never/Current/Former Classification Terminology

**Semantic type:** Intellectual Product

**Definition:** A terminology subset of the CDISC Study Data Tabulation Model (SDTM) Never Current Former codelist created for Clinical Data Acquisition Standards Harmonization (CDASH) Substance Usage Never Current Former terminology.

**Synonyms:** - CDASH-SUNCF - SUNCF - Substance Usage Never Current Former Classification - Substance Use Never/Current/Former Classification