# inactive reference set member

## inactive reference set member

A reference set member that is no longer intended for current use.

#### Notes

* Release files contain *active* and inactive reference set members to provide a historical record of the content of the terminology at different points in time.
* A *reference set member* is *inactive* when the most recent row with the *id* in the full release file has the value *reference set member*.*active* = 0 (zero). The most recent row for a *reference set member* is determined based on the *effectiveTime* value.
* Terms derived from *inactive reference set members* may still be present in past records but should no longer be returned by searches or user interface tools used to enter information into current records.

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