Adverse Event Relation to Intervention Unclassifiable

**Semantic type:** Qualitative Concept

**Definition:** A characteristic used to qualify the adverse event as unclassifiable in term of its relation to the medical intervention. According to WHO causality assessment criteria of suspected adverse reactions it is applicable to an adverse reaction which cannot be judged because information about it is insufficient or contradictory, and cannot be supplemented or verified.

**Synonyms:** - Relation to Intervention Unassessible - Relation to Intervention Unclassifiable - Unassessible/Unclassifiable - Unclassifiable Attribution