The International Classification of Headache Disorders Professor Jes Olesen has led the international headache classification for 30 years. The last edition of The International Classification of Headache Disorders (ICHD-3) was published in 2018. Page ContentRead more about The International Classification of Headache Disorders: https://ichd-3.org/Updated: 28-10-22 Last updated: 28. October 2022 Responsible editor Webgruppen på Rigshospitalet Please give your consent in order to send your message. Please enter a valid email address. Note: This mail is not secure. Your email should therefore not include civil registration numbers or health information.Read how to send secure digital post:https://www.regionh.dk/securemail Write your message: Write your email (Must be filled out): If you wish to attach one or more files you will need to login first. Create account or log in I hereby give my consent to the Capital Region of Denmark to process the information in my enquiry for professional purposes only. Read the terms for your consent No e-mail has been registred for this user/group