This class represents the root node of an EHR Extract: of part or all of the health record information extracted from an EHR Provider system for the purposes of communication to an EHR Recipient (which might be another repository, a client application or a middleware service such as an electronic guideline component).

Attributes

Name	Data type	Occurs	Description
ehr_system	II	1..1	The identity of the EHR Provider system from which this EHR Extract has been created.
ehr_id	II	1..1	The identity of the EHR from which this EHR Extract has been created. It shall be unique for that EHR Provider system for this subjectofcare.
subject_of_care	II	1..1	Unique identifier of the subject of care from whose EHR this EHR Extract was created, as defined by the EHR Provider system.
time_created	TS	1..1	The date and time at which data from this subject of care's EHR was queried or exported in order to create this EHR Extract.
authorising_party	II	0..1	Agent authorising the EHR Extract to be created and sent. This attribute is optional since some extracts might be created automatically between (authorised) interacting computing services.
rm_id	ST	1..1	The identity and version of the Reference Model standard under which this EHR_EXTRACT was made. For an EHR Extract conforming to this standard the attribute will have the string value "EN13606".

Relationships

Name	Class	Occurs	Description
criteria	EXTRACT_CRITERIA	0..*	The set of criteria by which the EHR of the subject of care was queried or filtered in order to generate this EHR_EXTRACT. These might not correspond directly to the criteria supplied in an EHR_EXTRACT Request.

Constraints

Type	Name	Specification
rm_id is 13606	Invariant	inv: rm_id.value = 'EN 13606'