| Other Headache Syndromes | | | | | | | | | | | | | | |
| ICD-9-CM | | ICHD II | | | | | | | | | | | | | | |
| Cluster headaches and other trigeminal autonomic cephalgias (TACS) | 339.0 | | 3 | | | | | | | | | | | | | | |
| Cluster headache syndrome, unspecified | 339.00 | | 3.1 | | | | | | | | | | | | | | |
| Ciliary neuralgia | 339.00 | | 3.1 | | | | | | | | | | | | | | |
| Cluster headache NOS | 339.00 | | 3.1 | | | | | | | | | | | | | | |
| Histamine cephalgia | 339.00 | | 3.1 | | | | | | | | | | | | | | |
| Lower half migraine | 339.00 | | 3.1 | | | | | | | | | | | | | | |
| Migrainous neuralgia | 339.00 | | 3.1 | | | | | | | | | | | | | | |
| Episodic cluster headache | 339.01 | | 3.1.1 | | | | | | | | | | | | | | |
| Chronic cluster headache | 339.02 | | 3.1.2 | | | | | | | | | | | | | | |
| Episodic paroxysmal hemicrania | 339.03 | | 3.2.1 | | | | | | | | | | | | | | |
| Paroxysmal hemicrania NOS | 339.03 | | 3.2 | | | | | | | | | | | | | | |
| Chronic paroxysmal hemicrania | 339.04 | | 3.2.2 | | | | | | | | | | | | | | |
| Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT) | 339.05 | | 3.3 | | | | | | | | | | | | | | |
| Other trigeminal autonomic cephalgias (TACS) | 339.09 | | 3 | | | | | | | | | | | | | | |
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| Tension type headache | 339.1 | | 2 | | | | | | | | | | | | | | |
| Tension type headache, unspecified | 339.10 | | 2 | | | | | | | | | | | | | | |
| Episodic tension type headache | 339.11 | | 2.1or2.2 | | | | | | | | | | | | | | |
| Chronic tension type headache | 339.12 | | 2.3 | | | | | | | | | | | | | | |
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| Post-traumatic headache | 339.2 | | 5 | | | | | | | | | | | | | | |
| Post-traumatic headache, unspecified | 339.20 | | 5 | | | | | | | | | | | | | | |
| Acute post-traumatic headache | 339.21 | | 5.1 | | | | | | | | | | | | | | |
| Chronic post-traumatic headache | 339.22 | | 5.2 | | | | | | | | | | | | | | |
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| Drug induced headache, not elsewhere classified | 339.3 | | 8.2 | | | | | | | | | | | | | | |
| Medication overuse headache | 339.3 | | 8.2 | | | | | | | | | | | | | | |
| Rebound headache | 339.3 | | 8.2 | | | | | | | | | | | | | | |
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| Complicated headache syndromes | 339.4 | | 4 | | | | | | | | | | | | | | |
| Hemicrania continua | 339.41 | | 4.7 | | | | | | | | | | | | | | |
| New daily persistent headache (NDPH) | 339.42 | | 4.8 | | | | | | | | | | | | | | |
| Primary thunderclap headache | 339.43 | | 4.6 | | | | | | | | | | | | | | |
| Other complicated headache syndrome | 339.44 | | 4 | | | | | | | | | | | | | | |
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| Other headache syndromes | 339.8 | | 4 | | | | | | | | | | | | | | |
| Hypnic headache | 339.81 | | 4.5 | | | | | | | | | | | | | | |
| Headache associated with sexual activity | 339.82 | | 4.4 | | | | | | | | | | | | | | |
| Orgasmic headache | 339.82 | | 4.4.2 | | | | | | | | | | | | | | |
| Preorgasmic headache | 339.82 | | 4.4.1 | | | | | | | | | | | | | | |
| Primary cough headache | 339.83 | | 4.2 | | | | | | | | | | | | | | |
| Primary exertional headache | 339.84 | | 4.3 | | | | | | | | | | | | | | |
| Primary stabbing headache | 339.85 | | 4.1 | | | | | | | | | | | | | | |
| Other headache syndromes | 339.89 | | 4 | | | | | | | | | | | | | | |
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| Migraine | | | | | | | | | | | | | | |
| ICD-9-CM | | ICHD II | | | | | | | | | | | | | | |
| Migraine with aura without intractability without status | 346.00 | | 1.2 | | | | | | | | | | | | | | |
| Migraine with aura with intractability without status | 346.01 | | 1.2 | | | | | | | | | | | | | | |
| Migraine with aura without intractability with status | 346.02 | | 1.2 | | | | | | | | | | | | | | |
| Migraine with aura with intractability with status | 346.03 | | 1.2 | | | | | | | | | | | | | | |
| Basilar migraine | 346.0 (0/1) | | 1.2.6 | | | | | | | | | | | | | | |
| Classic migraine | 346.0 (0/1) | | 1.2 | | | | | | | | | | | | | | |
| Migraine triggered seizures | 346.0 (0/1) | | 1.5.5 | | | | | | | | | | | | | | |
| Migraine with acute-onset aura | 346.0 (0/1) | | NA | | | | | | | | | | | | | | |
| Migraine with aura without headache (Migraine equivalents) | 346.0 (0/1) | | 1.2.3 | | | | | | | | | | | | | | |
| Migraine with prolonged aura | 346.0 (0/1) | | NA | | | | | | | | | | | | | | |
| Migraine with typical aura | 346.0 (0/1) | | 1.2.1 | | | | | | | | | | | | | | |
| Retinal migraine | 346.0 (0/1) | | 1.4 | | | | | | | | | | | | | | |
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| Migraine without aura w/o intractability w/o status | 346.10 | | 1.1 | | | | | | | | | | | | | | |
| Migraine without aura w/ intractability w/o status | 346.11 | | 1.1 | | | | | | | | | | | | | | |
| Migraine without aura w/o intractability w/ status | 346.12 | | 1.1 | | | | | | | | | | | | | | |
| Migraine without aura w/ intractability w/ status | 346.13 | | 1.1 | | | | | | | | | | | | | | |
| Common migraine | 346.1 (0/1) | | 1.1 | | | | | | | | | | | | | | |
| Migraine NOS | 346.1 (0/1) | | 1 | | | | | | | | | | | | | | |
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| Variants of migraine, not elsewhere classified w/o intractability w/o status | 346.20 | | N/A | | | | | | | | | | | | | | |
| Variants of migraine, not elsewhere classified w/ intractability w/o status | 346.21 | | N/A | | | | | | | | | | | | | | |
| Variants of migraine, not elsewhere classified w/o intractability w/ status | 346.22 | | N/A | | | | | | | | | | | | | | |
| Variants of migraine, not elsewhere classified w/ intractability w/ status | 346.23 | | N/A | | | | | | | | | | | | | | |
| Cyclical vomiting associated w/ migraine | 346.2 (0/1) | | 1.3.1 | | | | | | | | | | | | | | |
| Ophthalmoplegic migraine | 346.2 (0/1) | | 1.4 | | | | | | | | | | | | | | |
| Periodic headache syndromes in child or adolescent | 346.2 (0/1) | | 1.3 | | | | | | | | | | | | | | |
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| Hemiplegic migraine w/o intractability w/o status | 346.30 | | | | | | | | | | | | | | | | |
| Hemiplegic migraine w/ intractability w/o status | 346.31 | | | | | | | | | | | | | | | | |
| Hemiplegic migraine w/o intractability w/ status | 346.32 | | | | | | | | | | | | | | | | |
| Hemiplegic migraine w/ intractability w/ status | 346.33 | | | | | | | | | | | | | | | | |
| Familial | 346.3 (0/1) | | 1.2.4 | | | | | | | | | | | | | | |
| Sporadic | 346.3 (0/1) | | 1.2.5 | | | | | | | | | | | | | | |
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| Menstrual migraine w/o intractability w/o status | 346.40 | | A.1.1 | | | | | | | | | | | | | | |
| Menstrual migraine w/ intractability w/o status | 346.41 | | A.1.1 | | | | | | | | | | | | | | |
| Menstrual migraine w/o intractability w/ status | 346.42 | | A.1.1 | | | | | | | | | | | | | | |
| Menstrual migraine w/ intractability w/ status | 346.43 | | A.1.1 | | | | | | | | | | | | | | |
| Menstrual headache | 346.4 (0/1) | | NA | | | | | | | | | | | | | | |
| Menstrually related migraine | 346.4 (0/1) | | A.1.1.2 | | | | | | | | | | | | | | |
| Premenstrual headache | 346.4 (0/1) | | NA | | | | | | | | | | | | | | |
| Premenstrual migraine | 346.4 (0/1) | | NA | | | | | | | | | | | | | | |
| Pure menstrual migraine | 346.4 (0/1) | | A1.1.1 | | | | | | | | | | | | | | |
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| Migraine (cont'd) | | | | | | | | | | | | | | |
| ICD-9-CM | | HIS | | | | | | | | | | | | | | |
| Persistent migraine aura without cerebral infarction w/o intractability w/o status | 346.50 | | 1.5.3 | | | | | | | | | | | | | | |
| Persistent migraine aura without cerebral infarction w/ intractability w/o status | 346.51 | | 1.5.3 | | | | | | | | | | | | | | |
| Persistent migraine aura without cerebral infarction w/o intractability w/ status | 346.52 | | 1.5.3 | | | | | | | | | | | | | | |
| Persistent migraine aura without cerebral infarction w/ intractability w/ status | 346.53 | | 1.5.3 | | | | | | | | | | | | | | |
| Persistent migraine aura NOS | 346.5 (0/1) | | 1.5.3 | | | | | | | | | | | | | | |
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| Persistent migraine aura with cerebral infarction w/o intractability w/o status | 346.60 | | 1.5.4 | | | | | | | | | | | | | | |
| Persistent migraine aura with cerebral infarction w/ intractability w/o status | 346.61 | | 1.5.4 | | | | | | | | | | | | | | |
| Persistent migraine aura with cerebral infarction w/o intractability w/ status | 346.62 | | 1.5.4 | | | | | | | | | | | | | | |
| Persistent migraine aura with cerebral infarction w/ intractability w/ status | 346.63 | | 1.5.4 | | | | | | | | | | | | | | |
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| Chronic migraine w/o intractability w/o status | 346.70 | | 1.5.1 | | | | | | | | | | | | | | |
| Chronic migraine w/ intractability w/o status | 346.71 | | 1.5.1 | | | | | | | | | | | | | | |
| Chronic migraine w/o intractability w/ status | 346.72 | | 1.5.1 | | | | | | | | | | | | | | |
| Chronic migraine w/ intractability w/ status | 346.73 | | 1.5.1 | | | | | | | | | | | | | | |
| Transformed migraine | 346.7 (0/1) | | 1.5.1 | | | | | | | | | | | | | | |
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| Other forms of migraine w/o intractability w/o status | 346.80 | | N/A | | | | | | | | | | | | | | |
| Other forms of migraine w/ intractability w/o status | 346.81 | | N/A | | | | | | | | | | | | | | |
| Other forms of migraine w/o intractability w/ status | 346.82 | | N/A | | | | | | | | | | | | | | |
| Other forms of migraine w/ intractability w/ status | 346.83 | | N/A | | | | | | | | | | | | | | |
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