# International Classification of Headache Disorders

> detailed hierarchical classification

**Wikidata**: [Q2976581](https://www.wikidata.org/wiki/Q2976581)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/International_Classification_of_Headache_Disorders)  
**Source**: https://4ort.xyz/entity/international-classification-of-headache-disorders


## References

1. [Source](http://bartoc.org/en/node/408)
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)