Tension-type-like headache missing one of the features required to fulfil all criteria for a type or subtype of tension-type headache coded above, and not fulfilling criteria for another headache disorder.
Patients meeting one of the sets of criteria below may also meet the criteria for 1.5.1 Probable migraine without aura. In such cases, the general rule of hierarchy applies, putting 1. Migraine and its types and subtypes before 2. Tension-type headache and its types and subtypes.