The field guide
Terminology, in context
A codelist, a term concept and a submission value are different pieces of information. A familiar label alone cannot tell you which list or release applies to a variable.
Links-only in this edition
No controlled terminology package is bundled. The fictional DEMO_A, DEMO_B and DEMO_UNIT tokens used in examples are explicitly authored teaching values, not verified CDISC terminology. No codelist IDs or variable bindings are guessed.
How to approach an official vocabulary
- Identify the applicable list and dated release.
- Distinguish a concept ID from its output representation.
- Verify membership and extensibility in that release.
- Record source, terms and attribution before redistributing anything.
Follow the source
Original ClinDevLab explanations. Publisher material is linked, not reproduced. Reviewed 8 October 2026.
- CDISC Terminologyhttps://www.cancer.gov/about-nci/organization/cbiit/vocabulary/cdisc · NCI EVS · accessed 2026-10-08
- CDISC Library FAQhttps://www.cdisc.org/cdisc-library/faq · CDISC · accessed 2026-10-08