Model 2.0IG 3.4Content 1.0.0Curated educational coverage

EX / Variable lesson

EXSEQ

Distinguish EX records

This example sequence number separates rows inside the EX teaching extract. It is useful for referring to an observation, but the original collection identifier is retained separately in the mapping manifest.

About these metadata limitations →

Inspect the surrounding context

Return to the EX domain and its related example →

Follow the source

Original ClinDevLab explanations. Publisher material is linked, not reproduced. Reviewed 8 October 2026.

  • SDTM 2.0https://www.cdisc.org/standards/foundational/sdtm/sdtm-v2-0 · CDISC · 2.0 · accessed 2026-10-08
  • SDTMIG 3.4https://www.cdisc.org/standards/foundational/sdtmig/sdtmig-v3-4 · CDISC · 3.4 · accessed 2026-10-08