# Overdose

## Overdose of illicit drug

708079007 |Overdose of illicit drug (disorder)| is modeled without a Causative agent because the term "illicit drug" may have differing local interpretations.

## Vaccine-related overdose

Vaccine-related overdose concepts in the Clinical Finding/Disorder hierarchy were inactivated in the January 2020 Release. They were replaced with concepts in the Event hierarchy, see 788094008 |Excessive dose of vaccine administered (event)| and subtypes.

When authoring, determine whether the concept describes an overdose, which is a *disorder* , or the administration or ingestion of an excessive dose, which is an *event*.

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