Clinical Document Architecture, published by Health Level 7. This guide is not an authorized publication; it is the continuous build for version 2.0.0-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
Active as of 2024-10-25 |
Definitions for the ED logical model.
Guidance on how to interpret the contents of this table can be found here
0. ED | |
Definition | Data that is primarily intended for human interpretation or for further machine processing is outside the scope of HL7. This includes unformatted or formatted written language, multimedia data, or structured information as defined by a different standard (e.g., XML-signatures.) Instead of the data itself, an ED may contain only a reference (see TEL.) Note that the ST data type is a specialization of when the is text/plain. |
Control | 1..* |
Logical Container | ClinicalDocument (CDA Class) |
XML Format | In the XML format, this property has the namespace urn:hl7-org:v3 . |
Invariants | ed-base64: If @representation='B64', then xmlText SHALL be a base64binary string. ((representation.empty() or representation != 'B64') or xmlText.empty() or xmlText.matches('^(?:[A-Za-z0-9+//]{4})*(?:[A-Za-z0-9+//]{2}==|[A-Za-z0-9+//]{3}=)?$') ) |
2. ED.compression | |
Definition | Indicates whether the raw byte data is compressed, and what compression algorithm was used. |
Control | 0..1 |
Binding | The codes SHALL be taken from CDACompressionAlgorithm (required to http://hl7.org/cda/stds/core/ValueSet/CDACompressionAlgorithm ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Compression |
4. ED.integrityCheck | |
Definition | The integrity check is a short binary value representing a cryptographically strong checksum that is calculated over the binary data. The purpose of this property, when communicated with a reference is for anyone to validate later whether the reference still resolved to the same data that the reference resolved to when the encapsulated data value with reference was created. |
Control | 0..1 |
Type | base64Binary(bin: Binary Data) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Integrity Check |
6. ED.integrityCheckAlgorithm | |
Definition | Specifies the algorithm used to compute the integrityCheck value. The cryptographically strong checksum algorithm Secure Hash Algorithm-1 (SHA-1) is currently the industry standard. It has superseded the MD5 algorithm only a couple of years ago, when certain flaws in the security of MD5 were discovered. Currently the SHA-1 hash algorithm is the default choice for the integrity check algorithm. Note that SHA-256 is also entering widespread usage. |
Control | 0..1 |
Binding | The codes SHALL be taken from IntegrityCheckAlgorithm (2.0.0) (required to http://terminology.hl7.org/ValueSet/v3-IntegrityCheckAlgorithm|2.0.0 ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Integrity Check Algorithm |
8. ED.language | |
Definition | For character based information the language property specifies the human language of the text. |
Control | 0..1 |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Language |
10. ED.mediaType | |
Definition | Identifies the type of the encapsulated data and identifies a method to interpret or render the data. |
Control | 0..1 |
Binding | For example codes, see MediaType (example to http://terminology.hl7.org/ValueSet/v3-MediaType ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Media Type |
12. ED.representation | |
Control | 0..1 |
Binding | The codes SHALL be taken from CDABinaryDataEncoding (required to http://hl7.org/cda/stds/core/ValueSet/BinaryDataEncoding ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
14. ED.xmlText | |
Definition | Data that is primarily intended for human interpretation or for further machine processing is outside the scope of HL7. This includes unformatted or formatted written language, multimedia data, or structured information as defined by a different standard (e.g., XML-signatures.) |
Short | Allows for mixed text content. If @representation='B64', this SHALL be a base64binary string. |
Comments | This element is represented in XML as textual content. The actual name "xmlText" will not appear in a CDA instance. |
Control | 0..1 |
Type | string(st: Character String) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as unadorned text. |
16. ED.reference | |
Definition | A telecommunication address (TEL), such as a URL for HTTP or FTP, which will resolve to precisely the same binary data that could as well have been provided as inline data. |
Control | 0..1 |
Type | http://hl7.org/cda/stds/core/StructureDefinition/TEL |
Label | Reference |
18. ED.thumbnail | |
Definition | An abbreviated rendition of the full data. A thumbnail requires significantly fewer resources than the full data, while still maintaining some distinctive similarity with the full data. A thumbnail is typically used with by-reference encapsulated data. It allows a user to select data more efficiently before actually downloading through the reference. |
Control | 0..1 |
Type | http://hl7.org/cda/stds/core/StructureDefinition/ED |
Label | Thumbnail |
Guidance on how to interpret the contents of this table can be found here
0. ED | |
Definition | Data that is primarily intended for human interpretation or for further machine processing is outside the scope of HL7. This includes unformatted or formatted written language, multimedia data, or structured information as defined by a different standard (e.g., XML-signatures.) Instead of the data itself, an ED may contain only a reference (see TEL.) Note that the ST data type is a specialization of when the is text/plain. Base definition for all types defined in FHIR type system. |
Short | Base for all types and resources |
Control | 10..* |
Is Modifier | false |
Logical Container | ClinicalDocument (CDA Class) |
XML Format | In the XML format, this property has the namespace urn:hl7-org:v3 . |
Invariants | ed-base64: If @representation='B64', then xmlText SHALL be a base64binary string. ((representation.empty() or representation != 'B64') or xmlText.empty() or xmlText.matches('^(?:[A-Za-z0-9+//]{4})*(?:[A-Za-z0-9+//]{2}==|[A-Za-z0-9+//]{3}=)?$') ) |
2. ED.compression | |
Definition | Indicates whether the raw byte data is compressed, and what compression algorithm was used. |
Control | 0..1 |
Binding | The codes SHALL be taken from CDACompressionAlgorithm (required to http://hl7.org/cda/stds/core/ValueSet/CDACompressionAlgorithm ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Compression |
4. ED.integrityCheck | |
Definition | The integrity check is a short binary value representing a cryptographically strong checksum that is calculated over the binary data. The purpose of this property, when communicated with a reference is for anyone to validate later whether the reference still resolved to the same data that the reference resolved to when the encapsulated data value with reference was created. |
Control | 0..1 |
Type | base64Binary(bin: Binary Data) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Integrity Check |
6. ED.integrityCheckAlgorithm | |
Definition | Specifies the algorithm used to compute the integrityCheck value. The cryptographically strong checksum algorithm Secure Hash Algorithm-1 (SHA-1) is currently the industry standard. It has superseded the MD5 algorithm only a couple of years ago, when certain flaws in the security of MD5 were discovered. Currently the SHA-1 hash algorithm is the default choice for the integrity check algorithm. Note that SHA-256 is also entering widespread usage. |
Control | 0..1 |
Binding | The codes SHALL be taken from IntegrityCheckAlgorithm (2.0.0) (required to http://terminology.hl7.org/ValueSet/v3-IntegrityCheckAlgorithm|2.0.0 ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Integrity Check Algorithm |
8. ED.language | |
Definition | For character based information the language property specifies the human language of the text. |
Control | 0..1 |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Language |
10. ED.mediaType | |
Definition | Identifies the type of the encapsulated data and identifies a method to interpret or render the data. |
Control | 0..1 |
Binding | For example codes, see MediaType (example to http://terminology.hl7.org/ValueSet/v3-MediaType ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Media Type |
12. ED.representation | |
Control | 0..1 |
Binding | The codes SHALL be taken from CDABinaryDataEncoding (required to http://hl7.org/cda/stds/core/ValueSet/BinaryDataEncoding ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
14. ED.xmlText | |
Definition | Data that is primarily intended for human interpretation or for further machine processing is outside the scope of HL7. This includes unformatted or formatted written language, multimedia data, or structured information as defined by a different standard (e.g., XML-signatures.) |
Short | Allows for mixed text content. If @representation='B64', this SHALL be a base64binary string. |
Comments | This element is represented in XML as textual content. The actual name "xmlText" will not appear in a CDA instance. |
Control | 0..1 |
Type | string(st: Character String) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as unadorned text. |
16. ED.reference | |
Definition | A telecommunication address (TEL), such as a URL for HTTP or FTP, which will resolve to precisely the same binary data that could as well have been provided as inline data. |
Control | 0..1 |
Type | http://hl7.org/cda/stds/core/StructureDefinition/TEL |
Label | Reference |
18. ED.thumbnail | |
Definition | An abbreviated rendition of the full data. A thumbnail requires significantly fewer resources than the full data, while still maintaining some distinctive similarity with the full data. A thumbnail is typically used with by-reference encapsulated data. It allows a user to select data more efficiently before actually downloading through the reference. |
Control | 0..1 |
Type | http://hl7.org/cda/stds/core/StructureDefinition/ED |
Label | Thumbnail |
Guidance on how to interpret the contents of this table can be found here
0. ED | |
Definition | Data that is primarily intended for human interpretation or for further machine processing is outside the scope of HL7. This includes unformatted or formatted written language, multimedia data, or structured information as defined by a different standard (e.g., XML-signatures.) Instead of the data itself, an ED may contain only a reference (see TEL.) Note that the ST data type is a specialization of when the is text/plain. |
Short | Base for all types and resources |
Control | 1..* |
Is Modifier | false |
Logical Container | ClinicalDocument (CDA Class) |
XML Format | In the XML format, this property has the namespace urn:hl7-org:v3 . |
Invariants | ed-base64: If @representation='B64', then xmlText SHALL be a base64binary string. ((representation.empty() or representation != 'B64') or xmlText.empty() or xmlText.matches('^(?:[A-Za-z0-9+//]{4})*(?:[A-Za-z0-9+//]{2}==|[A-Za-z0-9+//]{3}=)?$') ) |
2. ED.nullFlavor | |
Definition | If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing. |
Control | 0..1 |
Binding | The codes SHALL be taken from CDANullFlavor (required to http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Exceptional Value Detail |
4. ED.compression | |
Definition | Indicates whether the raw byte data is compressed, and what compression algorithm was used. |
Control | 0..1 |
Binding | The codes SHALL be taken from CDACompressionAlgorithm (required to http://hl7.org/cda/stds/core/ValueSet/CDACompressionAlgorithm ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Compression |
6. ED.integrityCheck | |
Definition | The integrity check is a short binary value representing a cryptographically strong checksum that is calculated over the binary data. The purpose of this property, when communicated with a reference is for anyone to validate later whether the reference still resolved to the same data that the reference resolved to when the encapsulated data value with reference was created. |
Control | 0..1 |
Type | base64Binary(bin: Binary Data) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Integrity Check |
8. ED.integrityCheckAlgorithm | |
Definition | Specifies the algorithm used to compute the integrityCheck value. The cryptographically strong checksum algorithm Secure Hash Algorithm-1 (SHA-1) is currently the industry standard. It has superseded the MD5 algorithm only a couple of years ago, when certain flaws in the security of MD5 were discovered. Currently the SHA-1 hash algorithm is the default choice for the integrity check algorithm. Note that SHA-256 is also entering widespread usage. |
Control | 0..1 |
Binding | The codes SHALL be taken from IntegrityCheckAlgorithm (2.0.0) (required to http://terminology.hl7.org/ValueSet/v3-IntegrityCheckAlgorithm|2.0.0 ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Integrity Check Algorithm |
10. ED.language | |
Definition | For character based information the language property specifies the human language of the text. |
Control | 0..1 |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Language |
12. ED.mediaType | |
Definition | Identifies the type of the encapsulated data and identifies a method to interpret or render the data. |
Control | 0..1 |
Binding | For example codes, see MediaType (example to http://terminology.hl7.org/ValueSet/v3-MediaType ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
Label | Media Type |
14. ED.representation | |
Control | 0..1 |
Binding | The codes SHALL be taken from CDABinaryDataEncoding (required to http://hl7.org/cda/stds/core/ValueSet/BinaryDataEncoding ) |
Type | code(cs: Coded Simple Value) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as an attribute. |
16. ED.xmlText | |
Definition | Data that is primarily intended for human interpretation or for further machine processing is outside the scope of HL7. This includes unformatted or formatted written language, multimedia data, or structured information as defined by a different standard (e.g., XML-signatures.) |
Short | Allows for mixed text content. If @representation='B64', this SHALL be a base64binary string. |
Comments | This element is represented in XML as textual content. The actual name "xmlText" will not appear in a CDA instance. |
Control | 0..1 |
Type | string(st: Character String) |
Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
XML Format | In the XML format, this property is represented as unadorned text. |
18. ED.reference | |
Definition | A telecommunication address (TEL), such as a URL for HTTP or FTP, which will resolve to precisely the same binary data that could as well have been provided as inline data. |
Control | 0..1 |
Type | http://hl7.org/cda/stds/core/StructureDefinition/TEL |
Label | Reference |
20. ED.thumbnail | |
Definition | An abbreviated rendition of the full data. A thumbnail requires significantly fewer resources than the full data, while still maintaining some distinctive similarity with the full data. A thumbnail is typically used with by-reference encapsulated data. It allows a user to select data more efficiently before actually downloading through the reference. |
Control | 0..1 |
Type | http://hl7.org/cda/stds/core/StructureDefinition/ED |
Label | Thumbnail |