Clinical Document Architecture, published by Health Level 7. This is not an authorized publication; it is the continuous build for version 2.0.1). This version is based on the current content of https://github.com/HL7/CDA-core-2.0/ and changes regularly. See the Directory of published versions

• Content
• Detailed Descriptions
• Mappings
• XML

Logical Model: ST: CharacterString (V3 Data Type)

The character string data type stands for text data, primarily intended for machine processing (e.g., sorting, querying, indexing, etc.) Used for names, symbols, and formal expressions.

Usage:

• Derived from this Logical Model Profile: ADXP: CharacterString (V3 Data Type), ENXP: Entity Name Part (V3 Data Type) and SC: CharacterStringWithCode (V3 Data Type)
• Use this Logical Model Profile: ClinicalDocument (CDA Class), Criterion (CDA Class), Material (CDA Class), Observation (CDA Class)... Show 2 more, ObservationRange (CDA Class) and Section (CDA Class)

Formal Views of Profile Content

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

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

This structure is derived from ANY

Name	Flags	Card.	Type	Description & Constraints
ST		1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors: @nullFlavor Base for all types and resources
@representation		0..1	cs	Fixed Value: TXT
@mediaType		0..1	cs	Fixed Value: text/plain
@language		0..1	cs
xmlText		0..1	st	Allows for mixed text content
Documentation for this format

Name	Flags	Card.	Type	Description & Constraints
ST		1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors: @nullFlavor Base for all types and resources
@representation		0..1	cs	Fixed Value: TXT
@mediaType		0..1	cs	Fixed Value: text/plain
@language		0..1	cs
xmlText		0..1	st	Allows for mixed text content
Documentation for this format

Constraints

Id	Grade	Path(s)	Details	Requirements
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())

Name	Flags	Card.	Type	Description & Constraints
ST		1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors: @nullFlavor Base for all types and resources
@nullFlavor		0..1	cs	Binding: NullFlavor (required)
@representation		0..1	cs	Fixed Value: TXT
@mediaType		0..1	cs	Fixed Value: text/plain
@language		0..1	cs
xmlText		0..1	st	Allows for mixed text content
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
ST.nullFlavor	required	NullFlavor

Constraints

Id	Grade	Path(s)	Details	Requirements
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())

This structure is derived from ANY

Summary

Fixed Value: 2 elements

Structures

This structure refers to these other structures:

• cs: Coded Simple Value (http://hl7.org/cda/stds/core/StructureDefinition/cs-simple)
• st: Character String (http://hl7.org/cda/stds/core/StructureDefinition/st-simple)

Differential View

This structure is derived from ANY

Name	Flags	Card.	Type	Description & Constraints
ST		1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors: @nullFlavor Base for all types and resources
@representation		0..1	cs	Fixed Value: TXT
@mediaType		0..1	cs	Fixed Value: text/plain
@language		0..1	cs
xmlText		0..1	st	Allows for mixed text content
Documentation for this format

Key Elements View

Name	Flags	Card.	Type	Description & Constraints
ST		1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors: @nullFlavor Base for all types and resources
@representation		0..1	cs	Fixed Value: TXT
@mediaType		0..1	cs	Fixed Value: text/plain
@language		0..1	cs
xmlText		0..1	st	Allows for mixed text content
Documentation for this format

Constraints

Id	Grade	Path(s)	Details	Requirements
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())

Snapshot View

Name	Flags	Card.	Type	Description & Constraints
ST		1..*	ANY	XML Namespace: urn:hl7-org:v3 Elements defined in Ancestors: @nullFlavor Base for all types and resources
@nullFlavor		0..1	cs	Binding: NullFlavor (required)
@representation		0..1	cs	Fixed Value: TXT
@mediaType		0..1	cs	Fixed Value: text/plain
@language		0..1	cs
xmlText		0..1	st	Allows for mixed text content
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet
ST.nullFlavor	required	NullFlavor

Constraints

Id	Grade	Path(s)	Details	Requirements
ele-1	error	**ALL** elements	All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count())

This structure is derived from ANY

Summary

Fixed Value: 2 elements

Structures

This structure refers to these other structures:

• cs: Coded Simple Value (http://hl7.org/cda/stds/core/StructureDefinition/cs-simple)
• st: Character String (http://hl7.org/cda/stds/core/StructureDefinition/st-simple)

Other representations of profile: CSV, Excel