{"code":"A80-A89","type":"block","title":"Viral infections of the central nervous system","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["postpolio syndrome (G14)","sequelae of poliomyelitis (B91)","sequelae of viral encephalitis (B94.1)"],"excludes2":[],"isBillable":false,"sibling_codes":["A80","A81","A82","A83","A84","A85","A86","A87","A88","A89","A80.0","A80.1","A80.2","A80.3","A80.4","A80.9","A81.0","A81.1","A81.2","A81.8","A81.9","A82.0","A82.1","A82.9","A83.0","A83.1","A83.2","A83.3","A83.4","A83.5","A83.6","A83.8","A83.9","A84.0","A84.1","A84.8","A84.9","A85.0","A85.1","A85.2","A85.8","A87.0","A87.1","A87.2","A87.8","A87.9","A88.0","A88.1","A88.8"],"inclusionTerms":[],"sibling_titles":{"code":"A88.8","title":"Other specified viral infections of central nervous system","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Viral and prion infections of the central nervous system (A80-A89) is a non-billable ICD-10-CM category code (A80-A89). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1).","officialDefinition":"Viral and prion infections of the central nervous system (A80-A89) is a non-billable ICD-10-CM category code (A80-A89). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1).","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":[{"code":"A80","title":"Acute poliomyelitis","description":"Acute poliomyelitis is a non-billable ICD-10-CM category code (A80). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): acute flaccid myelitis (G04.82); postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1).","isBillable":false,"slug":"a80-acute-poliomyelitis"},{"code":"A81","title":"Atypical virus infections of central nervous system","description":"Atypical virus infections of central nervous system is a non-billable ICD-10-CM category code (A81). A more specific billable subcode must be selected for claims submission. Includes: diseases of the central nervous system caused by prions. Excludes1 (not coded here): postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1). Use additional code: code, if applicable, to identify:; dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4); dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-); dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3); dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2); dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0); mild neurocognitive disorder due to known physiological condition (F06.7-).","isBillable":false,"slug":"a81-atypical-virus-infections-of-central-nervous-system"},{"code":"A82","title":"Rabies","description":"Rabies is a non-billable ICD-10-CM category code (A82). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1).","isBillable":false,"slug":"a82-rabies"},{"code":"A83","title":"Mosquito-borne viral encephalitis","description":"Mosquito-borne viral encephalitis is a non-billable ICD-10-CM category code (A83). A more specific billable subcode must be selected for claims submission. Includes: mosquito-borne viral meningoencephalitis. Excludes1 (not coded here): postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1). Excludes2 (not included here): Venezuelan equine encephalitis (A92.2); West Nile fever (A92.3-); West Nile virus (A92.3-).","isBillable":false,"slug":"a83-mosquito-borne-viral-encephalitis"},{"code":"A84","title":"Tick-borne viral encephalitis","description":"Tick-borne viral encephalitis is a non-billable ICD-10-CM category code (A84). A more specific billable subcode must be selected for claims submission. Includes: tick-borne viral meningoencephalitis. Excludes1 (not coded here): postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1).","isBillable":false,"slug":"a84-tick-borne-viral-encephalitis"},{"code":"A85","title":"Other viral encephalitis, not elsewhere classified","description":"Other viral encephalitis, not elsewhere classified is a non-billable ICD-10-CM category code (A85). A more specific billable subcode must be selected for claims submission. Includes: specified viral encephalomyelitis NEC; specified viral meningoencephalitis NEC. Excludes1 (not coded here): encephalitis due to cytomegalovirus (B25.8); encephalitis due to herpesvirus NEC (B10.0-); encephalitis due to herpesvirus [herpes simplex] (B00.4); encephalitis due to measles virus (B05.0); encephalitis due to mumps virus (B26.2); encephalitis due to poliomyelitis virus (A80.-); encephalitis due to zoster (B02.0); lymphocytic choriomeningitis (A87.2); myalgic encephalomyelitis (G93.32); postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1).","isBillable":false,"slug":"a85-other-viral-encephalitis-not-elsewhere-classified"},{"code":"A86","title":"Unspecified viral encephalitis","description":"Unspecified viral encephalitis is a billable ICD-10-CM diagnosis code (A86). Inclusion terms: Viral encephalomyelitis NOS; Viral meningoencephalitis NOS. Excludes1 (not coded here): postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1).","isBillable":false,"slug":"a86-unspecified-viral-encephalitis"},{"code":"A87","title":"Viral meningitis","description":"Viral meningitis is a non-billable ICD-10-CM category code (A87). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): meningitis due to herpesvirus [herpes simplex] (B00.3); meningitis due to herpesvirus [herpes simplex] (B00.3); meningitis due to measles virus (B05.1); meningitis due to mumps virus (B26.1); meningitis due to poliomyelitis virus (A80.-); meningitis due to zoster (B02.1); postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1).","isBillable":false,"slug":"a87-viral-meningitis"},{"code":"A88","title":"Other viral infections of central nervous system, not elsewhere classified","description":"Other viral infections of central nervous system, not elsewhere classified is a non-billable ICD-10-CM category code (A88). A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): viral encephalitis NOS (A86); viral meningitis NOS (A87.9); postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1).","isBillable":false,"slug":"a88-other-viral-infections-of-central-nervous-system-not-elsewhere-classified"},{"code":"A89","title":"Unspecified viral infection of central nervous system","description":"Unspecified viral infection of central nervous system is a billable ICD-10-CM diagnosis code (A89). Excludes1 (not coded here): postpolio syndrome (G14); sequelae of poliomyelitis (B91); sequelae of viral encephalitis (B94.1).","isBillable":false,"slug":"a89-unspecified-viral-infection-of-central-nervous-system"}],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}