# concept model range

## concept model range

A set of values that the concept model permits to be applied to a specific attribute.

#### Notes

* The *range* of permitted values that can be applied to an attribute is formally specified using the expression constraint language.
* The *range* is typically limited to concepts that are subtypes of one concept. However, in some cases a *range* may be specified to include subtypes of several concepts or members of a specified reference set.

#### Example

* The *concept model range* for the attribute [116676008 | Associated morphology|](http://snomed.info/id/116676008) is limited the concept [49755003 | Morphologically abnormal structure|](http://snomed.info/id/49755003) and its subtypes. This is specified by the following constraint:

<< [49755003 |Morphologically abnormal structure|](http://snomed.info/id/49755003)

## Alternatives

* **Range**

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