# Extra Codesystems - KR Core Implementation Guide v2.0.0

* [**Table of Contents**](toc.md)
* **Extra Codesystems**

## Extra Codesystems

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| *Page standards status:*[Informative](http://hl7.org/fhir/R4/versions.html#std-process) |

* [WHO ATC](https://terminology.hl7.org/CodeSystem-v3-WC.html) 
세계보건기구협력센터 ATC 코드체계

