# Overview

SNOMED Clinical Terms Components are identified and referenced using numeric identifiers. These identifiers have the data type SCTID (SNOMED CT Identifier).

The SCTID data type is 64-bit integer which is allocated and represented in accordance with a set of rules. These rules enable each SCTID to refer unambiguously to a unique component. They also support separate partitions for allocation of Identifiers for particular types of component. In the case of components that originate in an Extension, the SCTID also supports separate namespaces that distinguish between different issuing organizations.

<a href="https://docs.google.com/forms/d/e/1FAIpQLScTmbZIf0UEQwYDkY27EEWBkaiYkHSbR0_9DmFrMLXoQLyL7Q/viewform?usp=pp_url&#x26;entry.1767247133=Release+File+Specification&#x26;entry.670899847=Overview" 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-ct-specifications/snomed-ct-release-file-specification/snomed-ct-identifiers/6-snomed-ct-identifiers.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.