{"code":"G40.4","type":"code","title":"Other generalized epilepsy and epileptic syndromes","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["conversion disorder with seizures (F44.5)","convulsions NOS (R56.9)","post traumatic seizures (R56.1)","seizure (convulsive) NOS (R56.9)","seizure of newborn (P90)"],"excludes2":["hippocampal sclerosis (G93.81)","mesial temporal sclerosis (G93.81)","temporal sclerosis (G93.81)","Todd's paralysis (G83.84)"],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["G40.401","G40.409","G40.411","G40.419"],"inclusionTerms":["Epilepsy with grand mal seizures on awakening","Epilepsy with myoclonic absences","Epilepsy with myoclonic-astatic seizures","Grand mal seizure NOS","Nonspecific atonic epileptic seizures","Nonspecific clonic epileptic seizures","Nonspecific myoclonic epileptic seizures","Nonspecific tonic epileptic seizures","Nonspecific tonic-clonic epileptic seizures","Symptomatic early myoclonic encephalopathy"],"sibling_titles":{"code":"G40.419","title":"Other generalized epilepsy and epileptic syndromes, intractable, without status epilepticus","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Other generalized epilepsy and epileptic syndromes is a non-billable ICD-10-CM category code (G40.4). A more specific billable subcode must be selected for claims submission.","officialDefinition":"Other generalized epilepsy and epileptic syndromes is a non-billable ICD-10-CM category code (G40.4). A more specific billable subcode must be selected for claims submission. Inclusion terms: Epilepsy with grand mal seizures on awakening; Epilepsy with myoclonic absences; Epilepsy with myoclonic-astatic seizures; Grand mal seizure NOS; Nonspecific atonic epileptic seizures; Nonspecific clonic epileptic seizures; Nonspecific myoclonic epileptic seizures; Nonspecific tonic epileptic seizures; Nonspecific tonic-clonic epileptic seizures; Symptomatic early myoclonic encephalopathy. Excludes1 (not coded here): conversion disorder with seizures (F44.5); convulsions NOS (R56.9); post traumatic seizures (R56.1); seizure (convulsive) NOS (R56.9); seizure of newborn (P90). Excludes2 (not included here): hippocampal sclerosis (G93.81); mesial temporal sclerosis (G93.81); temporal sclerosis (G93.81); Todd's paralysis (G83.84).","seventhCharacterInstructions":[],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}