G00–G99: Diseases of the Nervous System
Chapter 6 of ICD-10-CM 2027, 932 codes in 11 blocks.
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Chapter instructions
Excludes2: not included here, code separately if applicable
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Codes in this chapter
All codesBillable only700 results
- G40.A19Absence epileptic syndrome, intractable, without status epilepticus
- G40.B01Juvenile myoclonic epilepsy, not intractable, with status epilepticus
- G40.B09Juvenile myoclonic epilepsy, not intractable, without status epilepticus
- G40.B11Juvenile myoclonic epilepsy, intractable, with status epilepticus
- G40.B19Juvenile myoclonic epilepsy, intractable, without status epilepticus
- G40.C01Lafora progressive myoclonus epilepsy, not intractable, with status epilepticus
- G40.C09Lafora progressive myoclonus epilepsy, not intractable, without status epilepticus
- G40.C11Lafora progressive myoclonus epilepsy, intractable, with status epilepticus
- G40.C19Lafora progressive myoclonus epilepsy, intractable, without status epilepticus
- G43.001Migraine without aura, not intractable, with status migrainosus
- G43.009Migraine without aura, not intractable, without status migrainosus
- G43.011Migraine without aura, intractable, with status migrainosus
- G43.019Migraine without aura, intractable, without status migrainosus
- G43.101Migraine with aura, not intractable, with status migrainosus
- G43.109Migraine with aura, not intractable, without status migrainosus
- G43.111Migraine with aura, intractable, with status migrainosus
- G43.119Migraine with aura, intractable, without status migrainosus
- G43.401Hemiplegic migraine, not intractable, with status migrainosus
- G43.409Hemiplegic migraine, not intractable, without status migrainosus
- G43.411Hemiplegic migraine, intractable, with status migrainosus
- G43.419Hemiplegic migraine, intractable, without status migrainosus
- G43.501Persistent migraine aura without cerebral infarction, not intractable, with status migrainosus
- G43.509Persistent migraine aura without cerebral infarction, not intractable, without status migrainosus
- G43.511Persistent migraine aura without cerebral infarction, intractable, with status migrainosus
- G43.519Persistent migraine aura without cerebral infarction, intractable, without status migrainosus
- G43.601Persistent migraine aura with cerebral infarction, not intractable, with status migrainosus
- G43.609Persistent migraine aura with cerebral infarction, not intractable, without status migrainosus
- G43.611Persistent migraine aura with cerebral infarction, intractable, with status migrainosus
- G43.619Persistent migraine aura with cerebral infarction, intractable, without status migrainosus
- G43.701Chronic migraine without aura, not intractable, with status migrainosus
- G43.709Chronic migraine without aura, not intractable, without status migrainosus
- G43.711Chronic migraine without aura, intractable, with status migrainosus
- G43.719Chronic migraine without aura, intractable, without status migrainosus
- G43.801Other migraine, not intractable, with status migrainosus
- G43.809Other migraine, not intractable, without status migrainosus
- G43.811Other migraine, intractable, with status migrainosus
- G43.819Other migraine, intractable, without status migrainosus
- G43.821Menstrual migraine, not intractable, with status migrainosus
- G43.829Menstrual migraine, not intractable, without status migrainosus
- G43.831Menstrual migraine, intractable, with status migrainosus
- G43.839Menstrual migraine, intractable, without status migrainosus
- G43.901Migraine, unspecified, not intractable, with status migrainosus
- G43.909Migraine, unspecified, not intractable, without status migrainosus
- G43.911Migraine, unspecified, intractable, with status migrainosus
- G43.919Migraine, unspecified, intractable, without status migrainosus
- G43.A0Cyclical vomiting, in migraine, not intractable
- G43.A1Cyclical vomiting, in migraine, intractable
- G43.B0Ophthalmoplegic migraine, not intractable
- G43.B1Ophthalmoplegic migraine, intractable
- G43.C0Periodic headache syndromes in child or adult, not intractable