# reference set member version

## reference set member version

A reference set member as created or modified at a particular point in time.

#### Notes

* A *reference set member version* is represented in release files as a single row with an identifier, unique to that reference set member.
* The identifier is shared by other versions of that *reference set member* as indicated by the *effectiveTime* and *active* fields.
  * The *effectiveTime* field indicates the point in time at which this version of the *reference set member* was created or superseded the previous version of the same *reference set member.*
  * The *active* field indicates if the *reference set member* is active or inactive.

## Related 

* Reference set
* Reference set member
* Reference Sets Practical Guide
* Release FIle Specification - Reference Set Types

<a href="https://docs.google.com/forms/d/e/1FAIpQLScTmbZIf0UEQwYDkY27EEWBkaiYkHSbR0_9DmFrMLXoQLyL7Q/viewform?usp=pp_url&#x26;entry.1767247133=SNOMED+Glossary&#x26;entry.670899847=reference%20set%20member%20version" class="button primary">Provide Feedback</a>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.snomed.org/snomed-international-documents/snomed-ct-glossary/r/reference-set-member-version.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.