# namespace concept

A concept that represents an extension namespace identifier.

### Notes

* All *namespace concepts* are subtypes of the concept \_[ 370136006 | Namespace concept|](http://snomed.info/id/370136006) \_.
* The *namespace identifier* is represented in an associated description. The concept identifier of the *namespace concept* does not represent the *namespace identifier*.

## Examples

* The *namespace concept* hierarchy showing first few namespace concepts:

[900000000000441003 |SNOMED CT Model Component|](http://snomed.info/id/900000000000441003)\
[370136006 |Namespace concept|](http://snomed.info/id/370136006)\
[373872000 |Core Namespace|](http://snomed.info/id/373872000)\
[370137002 |Extension Namespace 1000000|](http://snomed.info/id/370137002)\
[370138007 |Extension Namespace 1000001|](http://snomed.info/id/370138007)\
[384597007 |Extension Namespace 1000002|](http://snomed.info/id/384597007)\
[413335000 |Extension Namespace 1000003|](http://snomed.info/id/413335000)\
[413336004 |Extension Namespace 1000004|](http://snomed.info/id/413336004)\
... more values ...

<a href="https://docs.google.com/forms/d/e/1FAIpQLScTmbZIf0UEQwYDkY27EEWBkaiYkHSbR0_9DmFrMLXoQLyL7Q/viewform?usp=pp_url&#x26;entry.1767247133=SNOMED+Glossary&#x26;entry.670899847=namespace%20concept" 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/n/namespace-concept.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.