The terminology server will accept CTU expressions matching the following pattern:
[[+ (<
71388002 |Procedure|
) @procedure]]:
272741003 |Laterality| = [[+ (< 182353008 |Side| ) @side]]
272741003 |Laterality| = [[+ (< 182353008 |Side| ) @side]]
Copy the defining properties and role groups of the focus concept (as present in the NNF) to the classifiable form expression
- Replace the value of the |Procedure site| attribute (or any of its subtypes / @siteAttribute) with a nested expression:
From: @siteAttribute = @bodySite
To: @siteAttribute = (@bodySite: |Laterality| = [[+ @side]] )
Important Notes
The terminology server will only accept expressions complying to this pattern where the focus concept has the following characteristics:
- The focus concept
- includes only one role group with a @siteAttribute 363704007 |Procedure site| attribute (or any subtype of 363704007 |Procedure site|) OR
- includes two or more role groups with a 363704007 |Procedure site| attribute (<< 363704007 |Procedure site|) WHERE
- the @bodySite value is the same for all procedure site attributes
- includes no attributes with values that are lateralized anatomical structures
- The value of the procedure site attribute is a member of the
723264001
|
Lateralizable body structure reference set|
- i.e. the associated body structure is lateralizable, and
- the associated body structure does not already state a laterality
Transformation of bilateral procedures
When applying the concept 51440002 | Right and left| as the value for the 272741003 | Laterality| attribute, the transformation should be done in accordance with the modeling applied to the content in the International Edition of SNOMED CT.
This means that the transformation steps described above should be applied twice; one for each lateral half, as illustrated in the example below.
| CTU | Classifiable form |
|---|---|
Examples
Table 5.3.2.5-1: Examples of CTU expressions and their evaluation at level 1.
Feedback
Overview
Content Tools
Apps