ICD-10-CM Section G40-G47
Episodic and paroxysmal disorders
- G40 Epilepsy and recurrent seizures NON-BILLABLE
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- G40.00 Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable NON-BILLABLE
- G40.01 Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable NON-BILLABLE
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- G40.A0 Absence epileptic syndrome, not intractable NON-BILLABLE
- G40.A1 Absence epileptic syndrome, intractable NON-BILLABLE
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- G40.B0 Juvenile myoclonic epilepsy, not intractable NON-BILLABLE
- G40.B1 Juvenile myoclonic epilepsy, intractable NON-BILLABLE
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- G40.80 Other epilepsy NON-BILLABLE
- G40.81 Lennox-Gastaut syndrome NON-BILLABLE
- G40.82 Epileptic spasms NON-BILLABLE
- G40.89 Other seizures BILLABLE
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- G40.90 Epilepsy, unspecified, not intractable NON-BILLABLE
- G40.91 Epilepsy, unspecified, intractable NON-BILLABLE
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- G43 Migraine NON-BILLABLE
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- G43.00 Migraine without aura, not intractable NON-BILLABLE
- G43.01 Migraine without aura, intractable NON-BILLABLE
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- G43.10 Migraine with aura, not intractable NON-BILLABLE
- G43.11 Migraine with aura, intractable NON-BILLABLE
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- G43.40 Hemiplegic migraine, not intractable NON-BILLABLE
- G43.41 Hemiplegic migraine, intractable NON-BILLABLE
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- G43.70 Chronic migraine without aura, not intractable NON-BILLABLE
- G43.71 Chronic migraine without aura, intractable NON-BILLABLE
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- G43.80 Other migraine, not intractable NON-BILLABLE
- G43.81 Other migraine, intractable NON-BILLABLE
- G43.82 Menstrual migraine, not intractable NON-BILLABLE
- G43.83 Menstrual migraine, intractable NON-BILLABLE
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- G43.90 Migraine, unspecified, not intractable NON-BILLABLE
- G43.91 Migraine, unspecified, intractable NON-BILLABLE
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- G44 Other headache syndromes NON-BILLABLE
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- G44.00 Cluster headache syndrome, unspecified NON-BILLABLE
- G44.01 Episodic cluster headache NON-BILLABLE
- G44.02 Chronic cluster headache NON-BILLABLE
- G44.03 Episodic paroxysmal hemicrania NON-BILLABLE
- G44.04 Chronic paroxysmal hemicrania NON-BILLABLE
- G44.05 Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT) NON-BILLABLE
- G44.09 Other trigeminal autonomic cephalgias (TAC) NON-BILLABLE
- BILLABLE G44.1 Vascular headache, not elsewhere classified
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- G44.20 Tension-type headache, unspecified NON-BILLABLE
- G44.21 Episodic tension-type headache NON-BILLABLE
- G44.22 Chronic tension-type headache NON-BILLABLE
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- G44.30 Post-traumatic headache, unspecified NON-BILLABLE
- G44.31 Acute post-traumatic headache NON-BILLABLE
- G44.32 Chronic post-traumatic headache NON-BILLABLE
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- G44.51 Hemicrania continua BILLABLE
- G44.52 New daily persistent headache (NDPH) BILLABLE
- G44.53 Primary thunderclap headache BILLABLE
- G44.59 Other complicated headache syndrome BILLABLE
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- G44.81 Hypnic headache BILLABLE
- G44.82 Headache associated with sexual activity BILLABLE
- G44.83 Primary cough headache BILLABLE
- G44.84 Primary exertional headache BILLABLE
- G44.85 Primary stabbing headache BILLABLE
- G44.89 Other headache syndrome BILLABLE
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- G45 Transient cerebral ischemic attacks and related syndromes NON-BILLABLE
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- BILLABLE G45.0 Vertebro-basilar artery syndrome
- BILLABLE G45.1 Carotid artery syndrome (hemispheric)
- BILLABLE G45.2 Multiple and bilateral precerebral artery syndromes
- BILLABLE G45.3 Amaurosis fugax
- BILLABLE G45.4 Transient global amnesia
- BILLABLE G45.8 Other transient cerebral ischemic attacks and related syndromes
- BILLABLE G45.9 Transient cerebral ischemic attack, unspecified
- G46 Vascular syndromes of brain in cerebrovascular diseases NON-BILLABLE
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- BILLABLE G46.0 Middle cerebral artery syndrome
- BILLABLE G46.1 Anterior cerebral artery syndrome
- BILLABLE G46.2 Posterior cerebral artery syndrome
- BILLABLE G46.3 Brain stem stroke syndrome
- BILLABLE G46.4 Cerebellar stroke syndrome
- BILLABLE G46.5 Pure motor lacunar syndrome
- BILLABLE G46.6 Pure sensory lacunar syndrome
- BILLABLE G46.7 Other lacunar syndromes
- BILLABLE G46.8 Other vascular syndromes of brain in cerebrovascular diseases
- G47 Sleep disorders NON-BILLABLE
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- G47.00 Insomnia, unspecified BILLABLE
- G47.01 Insomnia due to medical condition BILLABLE
- G47.09 Other insomnia BILLABLE
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- G47.10 Hypersomnia, unspecified BILLABLE
- G47.11 Idiopathic hypersomnia with long sleep time BILLABLE
- G47.12 Idiopathic hypersomnia without long sleep time BILLABLE
- G47.13 Recurrent hypersomnia BILLABLE
- G47.14 Hypersomnia due to medical condition BILLABLE
- G47.19 Other hypersomnia BILLABLE
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- G47.20 Circadian rhythm sleep disorder, unspecified type BILLABLE
- G47.21 Circadian rhythm sleep disorder, delayed sleep phase type BILLABLE
- G47.22 Circadian rhythm sleep disorder, advanced sleep phase type BILLABLE
- G47.23 Circadian rhythm sleep disorder, irregular sleep wake type BILLABLE
- G47.24 Circadian rhythm sleep disorder, free running type BILLABLE
- G47.25 Circadian rhythm sleep disorder, jet lag type BILLABLE
- G47.26 Circadian rhythm sleep disorder, shift work type BILLABLE
- G47.27 Circadian rhythm sleep disorder in conditions classified elsewhere BILLABLE
- G47.29 Other circadian rhythm sleep disorder BILLABLE
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- G47.30 Sleep apnea, unspecified BILLABLE
- G47.31 Primary central sleep apnea BILLABLE
- G47.32 High altitude periodic breathing BILLABLE
- G47.33 Obstructive sleep apnea (adult) (pediatric) BILLABLE
- G47.34 Idiopathic sleep related nonobstructive alveolar hypoventilation BILLABLE
- G47.35 Congenital central alveolar hypoventilation syndrome BILLABLE
- G47.36 Sleep related hypoventilation in conditions classified elsewhere BILLABLE
- G47.37 Central sleep apnea in conditions classified elsewhere BILLABLE
- G47.39 Other sleep apnea BILLABLE
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- G47.41 Narcolepsy NON-BILLABLE
- G47.42 Narcolepsy in conditions classified elsewhere NON-BILLABLE
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- G47.50 Parasomnia, unspecified BILLABLE
- G47.51 Confusional arousals BILLABLE
- G47.52 REM sleep behavior disorder BILLABLE
- G47.53 Recurrent isolated sleep paralysis BILLABLE
- G47.54 Parasomnia in conditions classified elsewhere BILLABLE
- G47.59 Other parasomnia BILLABLE
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- G47.61 Periodic limb movement disorder BILLABLE
- G47.62 Sleep related leg cramps BILLABLE
- G47.63 Sleep related bruxism BILLABLE
- G47.69 Other sleep related movement disorders BILLABLE
- BILLABLE G47.8 Other sleep disorders
- BILLABLE G47.9 Sleep disorder, unspecified
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Coding Notes for Section G40-G47
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Section Type-2 Excludes:
Type-2 Excludes
Type-2 Excludes means the excluded conditions are different, although they may appear similar. A patient may have both conditions, but one does not include the other. Excludes 2 means "not coded here." - Certain conditions originating in the perinatal period - instead, use Section P04-P96
- Certain infectious and parasitic diseases - instead, use Section A00-B99
- Complications of pregnancy, childbirth and the puerperium - instead, use Section O00-O9A
- Congenital malformations, deformations, and chromosomal abnormalities - instead, use Section Q00-Q99
- Endocrine, nutritional and metabolic diseases - instead, use Section E00-E88
- Injury, poisoning and certain other consequences of external causes - instead, use Section S00-T88
- Neoplasms - instead, use Section C00-D49
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified - instead, use Section R00-R94