| G37 | Other demyelinating diseases of central nervous system |
| G370 | Diffuse sclerosis of central nervous system |
| G371 | Central demyelination of corpus callosum |
| G372 | Central pontine myelinolysis |
| G373 | Acute transverse myelitis in demyelinating disease of central nervous system |
| G374 | Subacute necrotizing myelitis of central nervous system |
| G375 | Concentric sclerosis [Balo] of central nervous system |
| G378 | Other specified demyelinating diseases of central nervous system |
| G3781 | Myelin oligodendrocyte glycoprotein antibody disease |
| G3789 | Other specified demyelinating diseases of central nervous system |
| G379 | Demyelinating disease of central nervous system, unspecified Demyelinating disease of central nervous system, unspecified |
| G40 | Epilepsy and recurrent seizures |
| G400 | Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset |
| G4000 | Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable |
| G40001 | Local-rel idio epi w seiz of loc onst, not ntrct, w stat epi Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, with status epilepticus |
| G40009 | Local-rel idio epi w seiz of loc onst,not ntrct,w/o stat epi Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, without status epilepticus |
| G4001 | Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable |
| G40011 | Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable, with status epilepticus |
| G40019 | Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable, without status epilepticus |
| G401 | Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures |
| G4010 | Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable |
| G40101 | Local-rel symptc epi w simp part seiz, not ntrct, w stat epi Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, with status epilepticus |
| G40109 | Local-rel symptc epi w simp prt seiz,not ntrct, w/o stat epi Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, without status epilepticus |
| G4011 | Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable |
| G40111 | Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, with status epilepticus |
| G40119 | Local-rel symptc epi w simple part seiz, ntrct, w/o stat epi Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, without status epilepticus |
| G402 | Local-rel (focal) symptc epilepsy w complex partial seizures Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures |
| G4020 | Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable |
| G40201 | Local-rel symptc epi w cmplx prt seiz, not ntrct, w stat epi Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable, with status epilepticus |
| G40209 | Local-rel symptc epi w cmplx prt seiz,not ntrct,w/o stat epi Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable, without status epilepticus |
| G4021 | Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable |
| G40211 | Local-rel symptc epi w cmplx partial seiz, ntrct, w stat epi Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, with status epilepticus |
| G40219 | Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, without status epilepticus |
| G403 | Generalized idiopathic epilepsy and epileptic syndromes |
| G4030 | Generalized idiopathic epilepsy and epileptic syndromes, not intractable |
| G40301 | Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticus |
| G40309 | Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus |
| G4031 | Generalized idiopathic epilepsy and epileptic syndromes, intractable |
| G40311 | Generalized idiopathic epilepsy and epileptic syndromes, intractable, with status epilepticus |
| G40319 | Generalized idiopathic epilepsy and epileptic syndromes, intractable, without status epilepticus |
| G404 | Other generalized epilepsy and epileptic syndromes |
| G4040 | Other generalized epilepsy and epileptic syndromes, not intractable |
| G40401 | Other generalized epilepsy and epileptic syndromes, not intractable, with status epilepticus |
| G40409 | Other generalized epilepsy and epileptic syndromes, not intractable, without status epilepticus |
| G4041 | Other generalized epilepsy and epileptic syndromes, intractable |
| G40411 | Other generalized epilepsy and epileptic syndromes, intractable, with status epilepticus |
| G40419 | Other generalized epilepsy and epileptic syndromes, intractable, without status epilepticus |
| G4042 | Cyclin-Dependent Kinase-Like 5 Deficiency Disorder |
| G405 | Epileptic seizures related to external causes |
| G4050 | Epileptic seizures related to external causes, not intractable |