# navigation concept

## navigation concept

A concept that exists only to support navigation.

#### Notes

* A n *avigation concept* is not suitable for recording or aggregating information.
* All *navigation concepts* :
  * are direct subtypes of the concept navigational concept
  * have no other supertype or subtype relationships
* Navigation concepts are only linked to other concepts by navigational links. These navigational links are represented using reference sets.

## References

* Navigation
* Navigation hierarchy
* Release File Specifications
  * Association Reference Set
  * Ordered Association Reference Set
* Terminology Services Guide
  * Hierarchical Navigation
* Reference Sets Practical Guide
  * Association Reference Set
  * Ordered Association Reference Set

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