| G43801 | Other migraine, not intractable, with status migrainosus |
| G43809 | Other migraine, not intractable, without status migrainosus |
| G4381 | Other migraine, intractable |
| G43811 | Other migraine, intractable, with status migrainosus |
| G43819 | Other migraine, intractable, without status migrainosus |
| G4382 | Menstrual migraine, not intractable |
| G43821 | Menstrual migraine, not intractable, with status migrainosus Menstrual migraine, not intractable, with status migrainosus |
| G43829 | Menstrual migraine, not intractable, without status migrainosus |
| G4383 | Menstrual migraine, intractable |
| G43831 | Menstrual migraine, intractable, with status migrainosus |
| G43839 | Menstrual migraine, intractable, without status migrainosus |
| G439 | Migraine, unspecified |
| G4390 | Migraine, unspecified, not intractable |
| G43901 | Migraine, unspecified, not intractable, with status migrainosus |
| G43909 | Migraine, unspecified, not intractable, without status migrainosus |
| G4391 | Migraine, unspecified, intractable |
| G43911 | Migraine, unspecified, intractable, with status migrainosus |
| G43919 | Migraine, unspecified, intractable, without status migrainosus |
| G43A | Cyclical vomiting |
| G43A0 | Cyclical vomiting, in migraine, not intractable |
| G43A1 | Cyclical vomiting, in migraine, intractable |
| G43B | Ophthalmoplegic migraine |
| G43B0 | Ophthalmoplegic migraine, not intractable |
| G43B1 | Ophthalmoplegic migraine, intractable |
| G43C | Periodic headache syndromes in child or adult |
| G43C0 | Periodic headache syndromes in child or adult, not intractable |
| G43C1 | Periodic headache syndromes in child or adult, intractable |
| G43D | Abdominal migraine |
| G43D0 | Abdominal migraine, not intractable |
| G43D1 | Abdominal migraine, intractable |
| G43E | Chronic migraine with aura |
| G43E0 | Chronic migraine with aura, not intractable |
| G43E01 | Chronic migraine with aura, not intractable, with status migrainosus |
| G43E09 | Chronic migraine with aura, not intractable, without status migrainosus |
| G43E1 | Chronic migraine with aura, intractable |
| G43E11 | Chronic migraine with aura, intractable, with status migrainosus |
| G43E19 | Chronic migraine with aura, intractable, without status migrainosus |
| G44 | Other headache syndromes |
| G440 | Cluster headaches and oth trigeminal autonm cephalgias (TAC) Cluster headaches and other trigeminal autonomic cephalgias (TAC) |
| G4400 | Cluster headache syndrome, unspecified |
| G44001 | Cluster headache syndrome, unspecified, intractable |
| G44009 | Cluster headache syndrome, unspecified, not intractable |
| G4401 | Episodic cluster headache |
| G44011 | Episodic cluster headache, intractable |
| G44019 | Episodic cluster headache, not intractable |
| G4402 | Chronic cluster headache |
| G44021 | Chronic cluster headache, intractable |
| G44029 | Chronic cluster headache, not intractable |
| G4403 | Episodic paroxysmal hemicrania |
| G44031 | Episodic paroxysmal hemicrania, intractable |