F.5 Definition of Specific Directory Records

F.5 Definition of Specific Directory Records (Current)
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The following Sections specify a number of Directory Records that were introduced by the Basic Directory IOD Information Model presented in Section F.4. For each one, it identifies the SOP Classes that may be referenced and the related mandatory Keys. Keys are assigned a Type designation that indicates if it is required for all Media Storage Operations of the Directory (see Section 5).

Type 2 and Type 3 Keys may be changed to Type 1 and Type 2 or 3 respectively by Application Profiles defined in PS3.11. Keys based on Private Data Elements, or Private Keys may also be used in addition to Standard defined Keys. However such Private Keys may be ignored by any File-set Reader or Updater.

F.5.1 Patient Directory Record Definition

The Directory Record is based on the specification of Section F.3. It is identified by a Directory Record Type (0004,1430) of Value "PATIENT". Table F.5-1 lists the set of Keys with their associated Types for such a Directory Record Type. The description of these Keys may be found in the Modules related to the Patient IE of Composite IODs. 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.5-1. Patient Keys

Key	Tag	Type	Attribute Description
Specific Character Set	(0008,0005)	1C	Required if an extended or replacement character set is used in one of the Keys.
Patient's Name	(0010,0010)	2
Patient ID	(0010,0020)	1
Any other Attribute of the Patient IE Modules		3

For a given File-set, the Patient ID (0010,0020) shall have a unique value. This means that the value shall not appear in different Patient Directory Records.

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