> For the complete documentation index, see [llms.txt](https://docs.b2ihealthcare.com/snow-owl-authoring-platform/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.b2ihealthcare.com/snow-owl-authoring-platform/reference-sets/reference-set-types.md).

# Reference Set Types

Most important SNOMED CT Reference Sets in Snow Owl:

#### **Content type Reference Sets**

* ![](/files/-M286fNcahI8ICyY44_p) Simple type Reference Sets
* ![](/files/-MVH2MHEP5Kajw-yPMVI) Association type Reference Sets
* ![](/files/-MVH2MHHCkIxX_z-oF3C) Attribute Value type Reference Sets
* ![](/files/-MVH2MHQlmtIyZpmDYU2) Query type Reference Sets
* ![](/files/-MVH2MHVnx6IwsKpBbri) OWL Expression type Reference Sets

#### **Language type Reference Sets**

* ![](/files/-MVH2MH_CilLgb3OSWPh) Language type Reference Sets

#### **Map type Reference Sets**

* ![](/files/-M286fNiaIbJIkkJJkwA) Simple Map type Reference Set
* ![](/files/-M286fNcahI8ICyY44_p) Simple Map with Description type Reference Set
* ![](/files/-MVH2MHedKsUIWjXsHSf) Complex Map type Reference Set
* ![](/files/-MVH2MHf1uly8vHg51-Y) Complex Map Extended with Map Block type Reference Set
* ![](/files/-M286fNlIRRzRICThHp-) Extended Map type Reference Set

#### **Metadata type Reference Sets**

* ![](/files/-MVH2MHixM4-5ivTZrlG) MRCM Reference Sets
  * ![](/files/-MVH2MHk9OmgvW_1FM4H) MRCM Domain Reference Sets
  * ![](/files/-MVH2MHloNhdqOnAVMpe) MRCM Attribute Domain Reference Sets
  * ![](/files/-MVH2MHnQTzbRuqeBPY0) MRCM Attribute Range Reference Sets
  * ![](/files/-MVH2MHoeSRgldDYP4Xm) MRCM Module Scope Reference Set
* ![](/files/-M568DJU5WOPlA2nRi4U) Module Dependency Reference Set
* ![](/files/-MVH2MHqCT5Nx_pB7CgU) Description Format Reference Set


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://docs.b2ihealthcare.com/snow-owl-authoring-platform/reference-sets/reference-set-types.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.