| Tag | (0008,1111) | 
|---|---|
| Type | Conditionally Required (1C) | 
| Keyword | ReferencedPerformedProcedureStepSequence | 
| Value Multiplicity | 1 | 
| Value Representation | Sequence (SQ) | 
Uniquely identifies the Performed Procedure Step SOP Instance that resulted in creation of the Series (e.g. a Modality or Unified Procedure Step SOP Instance).
Only a single Item shall be included in this Sequence.
Required if the series has been created as a result of a single procedure step request and the Instance-Level Referenced Performed Procedure Step Sequence (3010,0044) is not present.
If different Instances in the series are created as a result of a procedure step, the Instance-Level Referenced Performed Procedure Step Sequence (3010,0044) in the Radiotherapy Common Instance Module shall be used.
Table C.36.4-1 specifies the Attributes of the Radiotherapy Common Instance Module, which identify and describe general information in RT Second Generation IODs.
Table C.36.4-1. Radiotherapy Common Instance Module Attributes
| 
 Attribute Name  | 
 Tag  | 
 Type  | 
 Attribute Description  | 
|---|---|---|---|
| 
 Instance Creation Date  | 
 (0008,0012)  | 
 1  | 
 Date the SOP Instance was created.  | 
| 
 Instance Creation Time  | 
 (0008,0013)  | 
 1  | 
 Time the SOP Instance was created.  | 
| 
 Content Date  | 
 (0008,0023)  | 
 1  | 
 The date the content creation started.  | 
| 
 Content Time  | 
 (0008,0033)  | 
 1  | 
 The time the content creation started.  | 
| 
 Author Identification Sequence  | 
 (3010,0019)  | 
 2  | 
 The person that created the entire clinical content of this document. Zero or more Items shall be included in this Sequence.  | 
| 
 >Include Table C.17-3b “Identified Person or Device Macro Attributes”.  | 
 Context Group may be defined by the IOD including this Module. The Observer Type (0040,A084) shall be PSN.  | 
||
| 
 Instance-Level Referenced Performed Procedure Step Sequence  | 
 (3010,0044)  | 
 1C  | 
 Uniquely identifies the Performed Procedure Step SOP Instance that resulted in creation of this Instance (e.g. a Modality or Unified Procedure Step SOP Instance). Required if this Instance has been created as a result of a procedure step request and the Referenced Performed Procedure Step Sequence (0008,1111) is not present. One or more Items shall be included in this Sequence.  | 
| 
 >Include Table 10-11 “SOP Instance Reference Macro Attributes”  | 
|||