AuditEvent Profile

Canonical	../StructureDefinition/nexus-emr-core-auditevent
Status	draft (experimental) · 1.26.0
Base	AuditEvent (constraint)
Source	FSH · JSON

Nexus EMR profile for AuditEvent -- the access and activity log: who acted, on which record, when, through what interaction, and with what outcome.

Salient fields

The profile's synthesized-accessor contract: fields TypedFhir surfaces as first-class typed properties, each computed from the instance by a restricted FHIRPath expression. See Salient Fields for what they are, how they shape LLM contexts, and how to declare them.

Key	Type	Expression	Rendered as	Description
action	code	action		create | read | update | delete | execute i
outcome	code	outcome		0 | 4 | 8 | 12 -- whether the interaction succeeded i
date	dateTime	period.start \| recorded		When the activity itself occurred i
performed_by	string	agent.altId.first()		The acting user's identity-provider subject i

action

Short	create | read | update | delete | execute
Definition	Indicator for type of action performed during the event that generated the audit.
Comments	The interaction performed, as R4's audit-event-action codes. See the element note: the platform records a transmission action that these five codes do not express.
Expression	action
Type	code
Prose inherited from	AuditEvent.action

outcome

Short	0 | 4 | 8 | 12 -- whether the interaction succeeded
Definition	Indicates whether the event succeeded or failed.
Comments	Present only when the outcome is known. An entry recording an outcome the platform could not determine carries no code at all -- treat absence as unknown, never as success.
Expression	outcome
Type	code
Prose inherited from	AuditEvent.outcome

date

Short	When the activity itself occurred
Definition	The period during which the activity occurred.
Comments	When the entry was recorded, falling back from the activity period where one is given. Not necessarily the instant of the interaction -- see the recorded note.
Expression	period.start | recorded
Type	dateTime
Prose inherited from	AuditEvent.period

performed_by

Short	The acting user's identity-provider subject
Definition	The opaque account identifier the identity provider issues for the acting user (for example auth0|abc123). This is the identity the platform actually holds on every entry, and it is the element to match on when correlating an audit entry with the meta-updated-by extension on a resource version -- the two carry the same kind of value for the same reason. NOT a FHIR id and NOT a Practitioner reference. Resolving it to a person needs the identity directory, which this guide does not describe.
Comments	The identity-provider subject of the acting user, as the platform holds it. An opaque account identifier, not a FHIR id and not a Practitioner reference. Resolving it to a person needs the identity directory, which this guide does not describe.
Expression	agent.altId.first()
Type	string
Prose inherited from	AuditEvent.agent.altId