Guidelines
All Guidelines, Reports and Recommendations published by IHS are accessible below. Guidelines published by National Society Members are also available. Note: not all of these can be copied, saved or printed.
Please note that many guidelines are in PDF format which require Acrobat Reader in order to view. You can download Acrobat Reader here.
To access the International Classification of Headache Disorders (ICHD) click below
Treatment Guidelines
Practice Recommendations
Real World Evidence Guidelines
Clinical Trials (Recommendations) Guidelines
IHS Position Statements
International Classification of Orofacial Pain (ICOP)
The first International Classification of Orofacial Pain (ICOP) was published in 2020, and will ensure standardised communication on all aspects of orofacial pain between professions, scientists and clinicians. By acknowledging and using such a classification we make sure that scientific progress is comparable between labs and that clinicians all over the world speak about the same disease when discussing orofacial pain.
Facial pain has been included and defined in the ICHD, but the facial pain chapter in the ICHD excludes many dental and other facial disorders and is thus incomplete. With the advent of ICOP, this has changed. As such, ICHD-3 and ICOP can be cited pari passu, but given that ICOP is more specific for facial pain it should be favoured for this purpose.