1. Migraine

1.1 Migraine without aura

1.2 Migraine with aura

      1.2.1  Migraine with typical aura

      1.2.2  Migraine with prolonged aura

      1.2.3  Familial hemiplegic migraine

      1.2.4  Basilar migraine

      1.2.5  Migraine aura without headache

      1.2.6  Migraine with acute onset aura

1.3  Ophtalmoplegic migraine 

1.4  Retinal migraine

1.5  Childhood periodic syndromes that may be precursors to or associated with migraine

        1.5.1 Benign paroxysmal vertigo of childhood

        1.5.2 Alternating hemiplegia of childhood

1.6  Complications of migraine

       1.6.1 Status migrainosus

       1.6.2 Migrainosus infarction  

1.7 Migrainous disorder not fulfilling above criteria

2. Tension-type headache

2.1 Episodic tension-type headache 

      2.1.1 Episodic tension-type headache associated with disorder of pericranial muscles

        2.1.2 Episodic tension-type headache unassociated with disorder of pericranial muscles

2.2 Chronic tension-type headache  

      2.1.1  Chronic tension-type headache associated with disorder of pericranial muscles

        2.1.2  Chronic tension-type headache unassociated with disorder of pericranial muscles

2.3 Headache of the tension-type not fulfilling above criteria

3. Cluster headache and chronic paroxysmal hemicrania

3.1 Cluster headache 

      3.1.1  Cluster headache periodicity undetermined

      3.1.2  Episodic cluster headache

      3.1.3  Chronic cluster headache

                3.1.3.1 Unremittting from onset

                3.1.3.2 Evolved from episodic

3.2 Chronic paroxysmal hemicrania

3.3 Cluster headache-like disorder not fulfilling above criteria

4. Miscellaneous headaches unassociated with structural lesion 

4.1  Idiopathic stabbing headache

4.2  External compression headache

4.3  Cold stimulus headache

         4.3.1 External application of a cold stimulus

         4.3.2 Ingestion of a cold stimulus 

4.4  Benign cough headache

4.5 Benign exertional headache

4.6 Headache associated with sexual activity

        4.6.1  Dull type

        4.6.2  Explosive type

        4.6.3  Postural type