C25275Level 3

Occurrence

**Semantic type:** Event

**Definition:** An instance of something happening, such as an event or incident.

**Synonyms:** - Occurrences

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C102557Planned Occurrence

C117478Exposure as Collected Occurrence

C117516Procedure Occurrence

C123982Healthcare Encounters Occurrence

C78604Adverse Event Occurrence

C81272First Feeding

C83067Medical History Occurrence

C83230Concomitant Medication Use Occurrence

C83424Substance Use Occurrence

C87851Clinical Events Occurrence

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