Preferred Label : Performed Activity Negation Indicator;
NCIt related terms : PerformedActivity.negationIndicator;
Alternative definition : BRIDG 5.3: Specifies whether an activity did not occur. EXAMPLE(S): If a subject did
not take aspirin in the previous week, the negationIndicator true. OTHER NAME(S):
NOTE(S): If it is important to capture the fact that a particular activity did not
occur, then this attribute is used, often along with negationReason.;
NCI Metathesaurus CUI : CL978066;
Origin ID : C164904;
UMLS CUI : C5236698;
Semantic type(s)
- concept_is_in_subset
