{"code":"G40.42","type":"code","title":"Cyclin-Dependent Kinase-Like 5 Deficiency Disorder","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":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":["CDKL5"],"useAdditionalCode":["code, if known, to identify associated manifestations, such as:","cortical blindness (H47.61-)","global developmental delay (F88)"],"clinicalDefinition":"Cyclin-Dependent Kinase-Like 5 Deficiency Disorder is a billable ICD-10-CM diagnosis code (G40.42). Inclusion terms: CDKL5. 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).","officialDefinition":"Cyclin-Dependent Kinase-Like 5 Deficiency Disorder is a billable ICD-10-CM diagnosis code (G40.42). Inclusion terms: CDKL5. 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). Use additional code: code, if known, to identify associated manifestations, such as:; cortical blindness (H47.61-); global developmental delay (F88).","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":""}