Clinical Document Architecture, published by Health Level 7. This guide is not an authorized publication; it is the continuous build for version 2.0.1-sd built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/CDA-core-sd/ and changes regularly. See the Directory of published versions

• Content
• Detailed Descriptions
• Mappings
• XML
• JSON

Logical Model: BL: Boolean (V3 Data Type)

The Boolean type stands for the values of two-valued logic. A Boolean value can be either true or false, or, as any other value may be NULL.

Usages:

• Use this Logical Model: Criterion (CDA Class), EntryRelationship (CDA Class), LanguageCommunication (CDA Class), Observation (CDA Class)... Show 6 more, ObservationRange (CDA Class), OrganizerComponent (CDA Class), Patient (CDA Class), Reference (CDA Class), SubjectPerson (CDA Class) and Supply (CDA Class)

You can also check for usages in the FHIR IG Statistics

Formal Views of Template Content

Description of Template, Differentials, Snapshots and how the different presentations work.

• Key Elements Table
• Differential Table
• Snapshot Table
• Statistics/References
• All

This structure is derived from ANY

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
BL	C	1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors:@nullFlavor Base for all types and resources Logical Container: ClinicalDocument (CDA Class) Constraints: value-null
@value		0..1	bl
Documentation for this format

Constraints

Id	Grade	Path(s)	Details	Requirements
value-null	error	BL	value and nullFlavor are mutually exclusive (one must be present) : (value | nullFlavor).count() = 1

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
BL	C	1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors:@nullFlavor Base for all types and resources Logical Container: ClinicalDocument (CDA Class) Constraints: value-null
(Choice of one)		1..1
@nullFlavor		0..1	cs	Binding: CDANullFlavor (required)
@value		0..1	bl
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
BL.nullFlavor	required	CDANullFlavor http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor From this IG

Constraints

Id	Grade	Path(s)	Details	Requirements
value-null	error	BL	value and nullFlavor are mutually exclusive (one must be present) : (value | nullFlavor).count() = 1

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
BL	C	1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors:@nullFlavor Base for all types and resources Logical Container: ClinicalDocument (CDA Class) Constraints: value-null
(Choice of one)		1..1
@nullFlavor		0..1	cs	Binding: CDANullFlavor (required)
@value		0..1	bl
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
BL.nullFlavor	required	CDANullFlavor http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor From this IG

Constraints

Id	Grade	Path(s)	Details	Requirements
value-null	error	BL	value and nullFlavor are mutually exclusive (one must be present) : (value | nullFlavor).count() = 1

This structure is derived from ANY

Summary

Structures

This structure refers to these other structures:

• bl: Boolean (http://hl7.org/cda/stds/core/StructureDefinition/bl-simple)

Differential View

This structure is derived from ANY

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
BL	C	1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors:@nullFlavor Base for all types and resources Logical Container: ClinicalDocument (CDA Class) Constraints: value-null
@value		0..1	bl
Documentation for this format

Constraints

Id	Grade	Path(s)	Details	Requirements
value-null	error	BL	value and nullFlavor are mutually exclusive (one must be present) : (value | nullFlavor).count() = 1

Key Elements View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
BL	C	1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors:@nullFlavor Base for all types and resources Logical Container: ClinicalDocument (CDA Class) Constraints: value-null
(Choice of one)		1..1
@nullFlavor		0..1	cs	Binding: CDANullFlavor (required)
@value		0..1	bl
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
BL.nullFlavor	required	CDANullFlavor http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor From this IG

Constraints

Id	Grade	Path(s)	Details	Requirements
value-null	error	BL	value and nullFlavor are mutually exclusive (one must be present) : (value | nullFlavor).count() = 1

Snapshot View

Name	Flags	Card.	Type	Description & Constraints    Filter: Bindings Constraints Obligations
BL	C	1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors:@nullFlavor Base for all types and resources Logical Container: ClinicalDocument (CDA Class) Constraints: value-null
(Choice of one)		1..1
@nullFlavor		0..1	cs	Binding: CDANullFlavor (required)
@value		0..1	bl
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet	URI
BL.nullFlavor	required	CDANullFlavor http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor From this IG

Constraints

Id	Grade	Path(s)	Details	Requirements
value-null	error	BL	value and nullFlavor are mutually exclusive (one must be present) : (value | nullFlavor).count() = 1

This structure is derived from ANY

Summary

Structures

This structure refers to these other structures:

• bl: Boolean (http://hl7.org/cda/stds/core/StructureDefinition/bl-simple)

Other representations of profile: CSV, Excel