expression template

expression template

This is a synonym for SNOMED CT expression template.

SNOMED CT expression template

A SNOMED CT template that represents an expression in which one or more elements are replaced by SNOMED CT template slots.

Notes

• An expression template includes one or more predefined variables which when replaced by appropriate values creates a conformant expression.

• An expression template can be used to specify how data items entered via several controls in a structured user interface should be combined to represent a composite meaning.

• Expression templates are also used to formally represent meaning bindings associated with different data entry contexts.

• Expression templates are one of several types of templates defined by the SNOMED CT Template Syntax Specification.

Examples

• The example expression template below specifies a meaning binding for a family history data entry context. In this context, a subtype of 64572001 | disease| will be interpreted as the value of the 246090004 | associated finding| attribute. Similarly, the concept 444148008 | person in family of subject (person)| or one of its subtypes will be interpreted as the value of the 408732007 | Subject relationship context| attribute. The template assigns the names @disease and @subject to these slots, which allows them to be referenced from specific user interface controls.

57177007 |Family history with explicit context (situation)| : { 408731000 |Temporal context (attribute)| = 410511007 |Current or past (actual) (qualifier value)| , 246090004 |Associated finding (attribute)| = [[+id ( < 64572001 |Disease (disorder)| ) @disease ]], 408729009 |Finding context (attribute)| = 410515003 |Known present (qualifier value)| , 408732007 |Subject relationship context (attribute)| = [[+id ( << 444148008 |Person in family of subject (person)| ) @subject ]]}

• If 44054006 | Diabetes mellitus type 2| is entered in the @disease slot and 66839005 | Father| is entered in the @subject slot, the result is the expression , shown below, stating that the father of the patient has (or had) 44054006 | Diabetes mellitus type 2| .

57177007 |Family history with explicit context (situation)| : { 408731000 |Temporal context (attribute)| = 410511007 |Current or past (actual) (qualifier value)| , 246090004 |Associated finding (attribute)| = 44054006 |Diabetes mellitus type 2| , 408729009 |Finding context (attribute)| = 410515003 |Known present (qualifier value)| , 408732007 |Subject relationship context (attribute)| = 66839005 |Father| }

Alternatives

• Expression template

Related

• Specification

  • Template Syntax Specification

    • 6.1. Expression Template Language

    • 8. Expression Template Examples

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