Difference between revisions of "Instance Identifier (II)"
m (Admin moved page II to Instance Identifier (II)) |
|||
| Line 14: | Line 14: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | The <code>@root</code> attribute is of type OID (object identifier), a unique identifier of the issuing authority or system. For example, a patient with a patient number 13234453645 | + | The <code>@root</code> attribute is of type OID (object identifier), a unique identifier of the issuing authority or system. |
| + | {{BeginBlueBox|Example}} | ||
| + | For example, a patient with a patient number 13234453645 created by a specific healthcare provider organization is uniquely identified by the number itself in <code>@extension</code> and the OID of the organization or the sending system, in the example 2.16.840.1.113883.2.6.15.3.427.1 in <code>@root</code>. | ||
| + | {{EndBlueBox}} | ||
| + | |||
In some cases a single OID identifies an object uniquely. In that situation, only @root is populated and @extension is omitted. | In some cases a single OID identifies an object uniquely. In that situation, only @root is populated and @extension is omitted. | ||
| + | |||
{{ConstraintBox|dtr1-1-II: @root is required if @nullFlavor is not present.}} | {{ConstraintBox|dtr1-1-II: @root is required if @nullFlavor is not present.}} | ||
{{ConstraintBox|dtr1-2-II: @root may not be used if @nullFlavor is present.}} | {{ConstraintBox|dtr1-2-II: @root may not be used if @nullFlavor is present.}} | ||
Revision as of 15:21, 23 July 2013
Instance Identifier (II)
This data type identifies instances of classes like observations or entities (persons, or-ganizations). Attributes are
| Attribute | DT | Conf | Description |
|---|---|---|---|
| @extension | st | O | Identification |
| @root | uid | R | Source of identification |
<id extension="13234453645" root="2.16.840.1.113883.2.6.15.3.427.1"/>
The @root attribute is of type OID (object identifier), a unique identifier of the issuing authority or system.
| Example |
|
For example, a patient with a patient number 13234453645 created by a specific healthcare provider organization is uniquely identified by the number itself in |
In some cases a single OID identifies an object uniquely. In that situation, only @root is populated and @extension is omitted.
 | dtr1-1-II: @root is required if @nullFlavor is not present. |
| dtr1-2-II: @root may not be used if @nullFlavor is present. |
| dtr1-3-II: @extension may not be used if @nullFlavor is present. |
| dtr1-4-II: @root should not be longer than 128 characters. Please write a note to the authors of this rule if this is found to be not sufficient |
| dtr1-5-II: @extension should not be longer than 64 characters. Please write a note to the authors of this rule if this is found to be not sufficient |
