C.24.2 Encapsulated Document Module

Table C.24-2 defines the Encapsulated Document Attributes.

Table C.24 -2 Encapsulated Document Module Attributes

Attribute Name Tag Type Attribute Description
Instance Number (0020,0013) 1 A number that identifies this SOP Instance. The value shall be unique within a series.
Content Date (0008,0023) 2 The date the document content creation was started.
Content Time (0008,0033) 2 The time the document content creation was started.
Acquisition DateTime (0008,002A) 2 The date and time that the original generation of the data in the document started.
Image Laterality (0020,0062) 3 Laterality of the (possibly paired) body part that is the subject of the encapsulated document. Enumerated Values: R = right L = left U = unpaired B = both left and right
Burned In Annotation (0028,0301) 1 Indicates whether or not the encapsulated document contains sufficient burned in annotation to identify the patient and date the data was acquired. Enumerated Values: YES NO Identification of patient and date as text in an encapsulated document (e.g., in an XML attribute or element) is equivalent to “burned in annotation”. A de-identified document may use the value NO.
Recognizable Visual Features (0028,0302) 3 Indicates whether or not the image contains sufficiently recognizable visual features to allow the image or a reconstruction from a set of images to identify the patient. Enumerated Values: YES NO If this Attribute is absent, then the image may or may not contain recognizable visual features.
Source Instance Sequence (0042,0013) 1C A sequence that identifies the set of Instances that were used to derive the encapsulated document. One or more Items shall be included in this Sequence. Required if derived from one or more DICOM Instances. May be present otherwise.
>Include ‘SOP Instance Reference Macro' Table 10-11
Document Title (0042,0010) 2 The title of the document. Note: In the case of a PDF encapsulated document, this may be the value of the “Title” entry in the “Document Information Directory” as encoded in the PDF data.
Concept Name Code Sequence (0040,A043) 2 A coded representation of the document title. Zero or one Item shall be included in this sequence.
>Include ‘Code Sequence Macro’ Table 8.8-1 Baseline Context Group 7020
Document Class Code Sequence (0040,E008) 3 Additional classifications of the document, beyond the title represented in Concept Name Code Sequence. Equivalent to HL7 v2.x TXA-2. One or more items are permitted in this sequence.
>Include ‘Code Sequence Macro’ Table 8.8-1 No Baseline Context Group
Verification Flag (0040,A493) 3 Indicates whether the Encapsulated Document is Verified. Enumerated Values: UNVERIFIED = Not attested by a legally accountable person. VERIFIED = Attested to (signed) by a Verifying Observer or Legal Authenticator named in the document, who is accountable for its content.
HL7 Instance Identifier (0040,E001) 1C Instance Identifier of the encapsulated HL7 Structured Document, encoded as a UID (OID or UUID), concatenated with a caret (“^”) and Extension value (if Extension is present in Instance Identifier). Required if encapsulated document is a CDA document.
MIME Type of Encapsulated Document (0042,0012) 1 The type of the encapsulated document stream described using the MIME Media Type (see RFC 2046).
List of MIME Types (0042,0014) 1C MIME Types of subcomponents of the encapsulated document. Required if the encapsulated document incorporates subcomponents with MIME types different than the primary MIME Type of the encapsulated document. Note: An Encapsulated CDA that includes an embedded JPEG image and an embedded PDF would list “image/jpeg\application/pdf”.
Encapsulated Document (0042,0011) 1 Encapsulated Document stream, containing a document encoded according to the MIME Type.

Notes: 1. One could distinguish four stages in the creation of the Encapsulated Document Object, identified by the following Attributes:

  1. Measurement and/or data collection, identified by Acquisition DateTime (0008,002A) in the Encapsulated Document Module.

  2. Creation of the original documentation of the data collection, identified by Content Date (0008,0023) and Content Time (0008,0033).

  3. Rendering of the original documentation into the format that will be encapsulated, e.g. a PDF document. The rendering time is not captured by any DICOM Attribute, but may be encoded in the rendering.

  4. Encapsulation of the rendering into a DICOM Object, identified by Instance Creation Date (0008,0012) and Instance Creation Time (0008,0013) in the SOP Common Module.

2. DICOM does not specify requirements for consistency between DICOM attribute values and data in the encapsulated document. It is expected that applications will ensure consistency in a manner appropriate to the application. For example, the Patient ID in an encapsulated CDA document may be that of a different institution, which originated the document, and it may be appropriate for the DICOM attribute value to be different.

C.24.1.1 Attribute Requirements for Encapsulated CDA Document

For an Encapsulated CDA Document, Document Title (0042,0010) shall have the value of the CDA Document Title, if one is present in the encapsulated document.

Concept Name Code Sequence (0040,A043) shall have the value of the CDA Document Type Code, with transcoding as necessary for converting the HL7 CE Data Type to the DICOM Code Sequence item.

The MIME Type of Encapsulated Document (0042,0012) value shall be ‘text/XML’.