Name Flags Card. Type Description & Constraints v2MessageStructureDefinition 0..* Base Base for all types and resources Instances of this logical model are not marked to be the target of a Reference code Σ 1..1 code code name of this message structure, eg. ADT_A01 Binding: hl7VS-messageStructure (required): Message Structure Code title Σ 0..1 string human readable display name description 0..1 Narrative textual description of this message structure messageType 1..1 code Binding: http://terminology.hl7.org/ValueSet/v2plus-vs-message-type (required) steward 0..1 code Binding: steward (required): Steward for this Message Structure triggerEvents 0..* code Binding: event (extensible): What are the associated triggering events? structure 1..* BackboneElement detailed structure This repeating element order: The order of segmentEntry elements defines the structure of the HL7 V2 message. Order SHALL be preserved by all implementations. sequenceNumber 1..1 integer Slices for segment 1..* choice of segment group, segment, or choice Slice: Unordered, Open by value:system segment:SegmentGroup 1..1 group of segments name 1..1 string group of segments structure 1..1 BackboneElement Nested Structure segment:IndividualSegment 1..* individual segments code 1..1 string code for individual segment segment:ChoiceGroup 1..* choice of segments number 1..1 integer number to identify this individual group name 1..1 string groupname structure 1..1 BackboneElement Nested Structure implement 0..1 code This value indicates wheether this segment has to be implemented. The default value is empty, i.e. optional. Binding: v2plus-implement (required) minCardinality 0..1 integer maxCardinality 0..1 integer status 0..1 string Documentation for this format
Base definition for all types defined in FHIR type system.
code name of this message structure, eg. ADT_A01
textual description of this message structure
What are the associated triggering events?
The order of segmentEntry elements defines the structure of the HL7 V2 message. Order SHALL be preserved by all implementations.
All FHIR elements must have a @value or children
hasValue() or (children().count() > id.count())
Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Extensions are always sliced by (at least) url
Additional content defined by implementations
May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Must have either extensions or value[x], not both
Extensions that cannot be ignored even if unrecognized
May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](http://hl7.org/fhir/R5/extensibility.html#modifierExtension).
Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
number to identify this individual group
This value indicates wheether this segment has to be implemented. The default value is empty, i.e. optional.
Specify the concept domain if it is a coded element
choice of segment group, segment, or choice