8.2 Medication-overuse headache:[IHS, 2018]
A. Headache occurring on ≥15 days/month in a patient with a pre-existing headache disorder.
B. Regular overuse for >3 months of one or more drugs that can be taken for acute and/or symptomatic treatment of headache.a-c
C. Not better accounted for by another ICHD-3 diagnosis.
aPatients should be coded for one or more subtypes of ‘8.2 Medication-overuse headache’ according to the specific medication(s) overused and the criteria for each below. For example, a patient who fulfils the criteria for ‘8.2.2 Triptan-overuse headache’ and the criteria for one of the subforms of ‘8.2.3 Non-opioid analgesic-overuse headache’ should receive both these codes. The exception occurs when patients overuse combination-analgesic medications, who are coded ‘8.2.5 Combination analgesic-overuse headache’ and not according to each constituent of the combination-analgesic medication.
bPatients who use multiple drugs for acute or symptomatic treatment of headache may do so in a manner that constitutes overuse even though no individual drug or class of drug is overused; such patients should be coded ‘8.2.6 Medication-overuse headache’ attributed to multiple drug classes not individually overused.
cPatients who are clearly overusing multiple drugs for acute or symptomatic treatment of headache but cannot give an adequate account of their names and/or quantities are coded ‘8.2.7 Medication-overuse headache’ attributed to unspecified or unverified overuse of multiple drug classes until better information is available. In almost all cases, this necessitates diary follow-up.
Other reference used on slide:
Kristoffersen ES, Lundqvist C. Medication-overuse headache: epidemiology, diagnosis and treatment. Ther Adv Drug Saf 2014; 5 (2): 87–99.