{"code":"G90.9","type":"code","title":"Disorder of the autonomic nervous system, unspecified","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["dysfunction of the autonomic nervous system due to alcohol (G31.2)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true},"sibling_codes":["G90","G90.0","G90.1","G90.2","G90.3","G90.4","G90.5","G90.511","G90.512","G90.513","G90.519","G90.521","G90.522","G90.523","G90.529","G90.8","G90.A","G90.B"],"inclusionTerms":[],"sibling_titles":{"code":"G90.B","title":"LMNB1-related autosomal dominant leukodystrophy","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Disorder of the autonomic nervous system, unspecified is a billable ICD-10-CM diagnosis code (G90.9). Excludes1 (not coded here): dysfunction of the autonomic nervous system due to alcohol (G31.2).","officialDefinition":"Disorder of the autonomic nervous system, unspecified is a billable ICD-10-CM diagnosis code (G90.9). Excludes1 (not coded here): dysfunction of the autonomic nervous system due to alcohol (G31.2).","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":""}