The Directory Record is based on the specification of Section F.3. It is identified by a Directory Record Type of Value "HL7 STRUC DOC".
Table F.5-33 lists the set of keys with their associated Types for such a Directory Record Type. This Directory Record shall be used to reference an HL7 Structured Document and any of its referenced content stored on the interchange media but not encapsulated in a DICOM SOP Instance. The document may be encoded as an XML document with in-line multimedia content, or may be encoded in a multi-part MIME wrapper (see PS3.10). This type of Directory Record may reference a Lower-Level Directory Entity that includes one or more Directory Records as defined in Table F.4-1.
Table F.5-33HL7 Structured Document Keys
|Specific Character Set||(0008,0005)||1C||Required if an extended or replacement character set is used in one of the keys.|
|HL7 Instance Identifier||(0040,E001)||1||Instance Identifier from the referenced HL7 Structured Document, encoded as a UID (OID or UUID), concatenated with a caret (“^”) and Extension value (if Extension is present in Instance Identifier).|
|HL7 Document Effective Time||(0040,E004)||1||Effective Time from the referenced HL7 Structured Document|
|HL7 Document Type Code Sequence||(0040,E006)||1C||Document Type Code from the referenced HL7 Structured Document. Only a single Item shall be included in this Sequence. Required if the HL7 Structured Document contains a Document Type Code.|
|>Include ‘Code Sequence Macro’ Table 8.8-1||No BCID defined|
|Document Title||(0042,0010)||1C||Document Title from the referenced HL7 Structured Document. Required if the HL7 Structured Document contains a Document Title.|
Note: This directory record points to a CDA document that is stored on this media. The HL7 Document Effective Time and other information can be obtained from the CDA document.