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
- G37.9Demyelinating disease of central nervous system, unspecified
- G40.001Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, with status epilepticus
- G40.009Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, without status epilepticus
- G40.011Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable, with status epilepticus
- G40.019Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable, without status epilepticus
- G40.101Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, with status epilepticus
- G40.109Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, without status epilepticus
- G40.111Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, with status epilepticus
- G40.119Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, without status epilepticus
- G40.201Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable, with status epilepticus
- G40.209Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable, without status epilepticus
- G40.211Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, with status epilepticus
- G40.219Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, without status epilepticus
- G40.301Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticus
- G40.309Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus
- G40.311Generalized idiopathic epilepsy and epileptic syndromes, intractable, with status epilepticus
- G40.319Generalized idiopathic epilepsy and epileptic syndromes, intractable, without status epilepticus
- G40.401Other generalized epilepsy and epileptic syndromes, not intractable, with status epilepticus
- G40.409Other generalized epilepsy and epileptic syndromes, not intractable, without status epilepticus
- G40.411Other generalized epilepsy and epileptic syndromes, intractable, with status epilepticus
- G40.419Other generalized epilepsy and epileptic syndromes, intractable, without status epilepticus
- G40.42Cyclin-Dependent Kinase-Like 5 Deficiency Disorder
- G40.501Epileptic seizures related to external causes, not intractable, with status epilepticus
- G40.509Epileptic seizures related to external causes, not intractable, without status epilepticus
- G40.801Other epilepsy, not intractable, with status epilepticus
- G40.802Other epilepsy, not intractable, without status epilepticus
- G40.803Other epilepsy, intractable, with status epilepticus
- G40.804Other epilepsy, intractable, without status epilepticus
- G40.811Lennox-Gastaut syndrome, not intractable, with status epilepticus
- G40.812Lennox-Gastaut syndrome, not intractable, without status epilepticus
- G40.813Lennox-Gastaut syndrome, intractable, with status epilepticus
- G40.814Lennox-Gastaut syndrome, intractable, without status epilepticus
- G40.821Epileptic spasms, not intractable, with status epilepticus
- G40.822Epileptic spasms, not intractable, without status epilepticus
- G40.823Epileptic spasms, intractable, with status epilepticus
- G40.824Epileptic spasms, intractable, without status epilepticus
- G40.833Dravet syndrome, intractable, with status epilepticus
- G40.834Dravet syndrome, intractable, without status epilepticus
- G40.841KCNQ2-related epilepsy, not intractable, with status epilepticus
- G40.842KCNQ2-related epilepsy, not intractable, without status epilepticus
- G40.843KCNQ2-related epilepsy, intractable, with status epilepticus
- G40.844KCNQ2-related epilepsy, intractable, without status epilepticus
- G40.89Other seizures
- G40.901Epilepsy, unspecified, not intractable, with status epilepticus
- G40.909Epilepsy, unspecified, not intractable, without status epilepticus
- G40.911Epilepsy, unspecified, intractable, with status epilepticus
- G40.919Epilepsy, unspecified, intractable, without status epilepticus
- G40.A01Absence epileptic syndrome, not intractable, with status epilepticus
- G40.A09Absence epileptic syndrome, not intractable, without status epilepticus
- G40.A11Absence epileptic syndrome, intractable, with status epilepticus