> For the complete documentation index, see [llms.txt](https://docs.snomed.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.snomed.org/snomed-ct-user-guides/authoring-user-guide/how-to/task-taxonomy-and-concept-search/browse-the-taxonomy-to-locate-concepts.md).
# Browse the taxonomy to locate concepts
| Steps | References | | |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Press the `Taxonomy` tab in the *Task View - Context Panel* tabs list. | | | |
| The Task View - Context Panel switches to the Taxonomy view with a hierarchical tree-node representation of SNOMED CT concepts, based on their parent-child (Is-a) relationships.
Each row in this view represents a hierarchy node, and is preceded by one of two icon buttons:
- :chevron-down: (child nodes expanded)
- :chevron-right: (child nodes collapsed)
Pressing :chevron-down: or :chevron-right: toggles from one state to the other.
The initial view shows 138875005 | SNOMED CT Concept (SNOMED RT+CTV3) | at the top of the listing, in its expanded presentation, revealing the SNOMED CT top level concepts.
Each taxonomy row also has the following:
Primitive or Fully Defined definition status icon- Text label showing either the concept FSN or Preferred Term (PT) in the en-US dialect
| |
| Press `Primitive` or `Fully Defined` to open a *Concept Details* pop-up box as described in [View concept details when browsing the taxonomy](/snomed-ct-user-guides/authoring-user-guide/how-to/task-taxonomy-and-concept-search/view-concept-details-when-browsing-the-taxonomy.md). | | | |
| Single-press a node label to load that concept into the edit panel. | | | |
| Double-press a node label to change the focus of the taxonomy tree to that concept.
This presents the same view as opening a concept in the taxonomy from a Task View - Search result (see Act on concept search results) or Task View - Saved List entry (see Add a concept to my task Saved List and act on saved concepts).
| | | |
| Above the taxonomy listing are two presentation controls:
- Switch between
Inferred View (default) and Stated View - Switch between
FSN in US (default) and PT in US for the node label text
| | | |
| Navigate down the taxonomy nodes by successively expanding selective child nodes. | | | |
| When a concept is reached that has no child concepts (ie it is a taxonomy "leaf" node), the row entry is preceded with a :minus: icon, indicating that no further expansion is possible. | | | |
| Any taxonomy node that is visible can be expanded or collapsed independently of the others. Changing one node does not affect others previously expanded or collapsed at that level or above - only direct descendants are affected. | | | |
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