C.8.20.4 Segmentation Macros
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#### C.8.20.4 Segmentation Macros

The following sections contain macros specific to the Segmentation IOD.

##### C.8.20.4.1 Segment Description Macro

Table C.8.20-4 specifies the attributes of the Segment Description Macro.

Table C.8.20-4. Segment Description Macro Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Segment Number | (0062,0004) | 1 | Identification number of the segment. The value of Segment Number (0062,0004) shall be unique within the Segmentation instance in which it is created. See Section C.8.20.2.4.
Segment Label | (0062,0005) | 1 | User-defined label identifying this segment. This may be the same as Code Meaning (0008,0104) of Segmented Property Type Code Sequence (0062,000F).
Segment Description | (0062,0006) | 3 | User-defined description for this segment.
Segment Algorithm Type | (0062,0008) | 1 | Type of algorithm used to generate the segment. Enumerated Values: AUTOMATIC calculated segment SEMIAUTOMATIC calculated segment with user assistance MANUAL user-entered segment
Include Table 10-7 “General Anatomy Optional Macro Attributes” | May be not be necessary if the anatomy is implicit in the Segmented Property Type Code Sequence.
Segmented Property Category Code Sequence | (0062,0003) | 1 | Sequence defining the general category of this segment. Only a single item shall be included in this sequence.
>Include Table 8.8-1 “Code Sequence Macro Attributes” | Baseline CID 7150 “Segmentation Property Categories”.
Segmented Property Type Code Sequence | (0062,000F) | 1 | Sequence defining the specific property type of this segment. Only a single item shall be included in this sequence.
>Include Table 8.8-1 “Code Sequence Macro Attributes” | Baseline CID 7151 “Segmentation Property Types”.
>Segmented Property Type Modifier Code Sequence | (0062,0011) | 3 | Sequence defining the modifier of the property type of this segment. One or more Items are permitted in this sequence.
>>Include Table 8.8-1 “Code Sequence Macro Attributes” | Baseline CID 244 “Laterality”.

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