Properties

This code system defines the following properties for its concepts

Code	URI	Type	Description
abstract		boolean	True when the code is not intended to be used
parent	http://hl7.org/fhir/concept-properties#parent	code	The parent term of the current term

Concepts

This case-sensitive code system http://hl7.org/fhir/uv/ae-research-backport-ig/CodeSystem/adverse-event-severity-or-grade-cs defines the following codes in a Is-A heirarchy:

Code	Display	Definition	abstract	Parent
severity	Severity Codes	Grouping concept for severities	true
grade	Grade Codes	Grouping concept for grades	true
1	Mild	An experience that is usually transient, and requires no special treatment or intervention. The event does not generally interfere with usual daily activities. Includes transient laboratory test alterations.		grade, severity
2	Moderate	An experience that is alleviated with simple therapeutic treatments. The event impacts usual daily activities. Includes laboratory test alterations indicating injury, but without long-term risk.		grade, severity
3	Severe	An adverse event experience that requires intensive therapeutic intervention and interrupts usual daily activities.		grade, severity
4	Life Threatening or Disabling	Any adverse event that places the patient, in the view of the initial reporter, at immediate risk of death from the adverse event as it occurred, i.e., it does not include an adverse experience that, had it occurred in a more severe form, might have caused death.		grade
5	Death Related to Adverse Event	The termination of life associated with an adverse event.		grade