{"code":"G05.3","type":"code","title":"Encephalitis and encephalomyelitis in diseases classified elsewhere","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":["underlying disease","underlying disease, such as:","congenital toxoplasmosis encephalitis, myelitis and encephalomyelitis (P37.1)","cytomegaloviral encephalitis, myelitis and encephalomyelitis (B25.8)","encephalitis, myelitis and encephalomyelitis (in) systemic lupus erythematosus (M32.19)","eosinophilic meningoencephalitis (B83.2)","human immunodeficiency virus [HIV] disease (B20)","poliovirus (A80.-)","suppurative otitis media (H66.01-H66.4)","systemic lupus erythematosus (M32.19)","trichinellosis (B75)"],"excludes1":["adenoviral encephalitis, myelitis and encephalomyelitis (A85.1)","encephalitis, myelitis and encephalomyelitis (in) measles (B05.0)","enteroviral encephalitis, myelitis and encephalomyelitis (A85.0)","herpesviral [herpes simplex] encephalitis, myelitis and encephalomyelitis (B00.4)","listerial encephalitis, myelitis and encephalomyelitis (A32.12)","meningococcal encephalitis, myelitis and encephalomyelitis (A39.81)","mumps encephalitis, myelitis and encephalomyelitis (B26.2)","postchickenpox encephalitis, myelitis and encephalomyelitis (B01.1-)","rubella encephalitis, myelitis and encephalomyelitis (B06.01)","toxoplasmosis encephalitis, myelitis and encephalomyelitis (B58.2)","zoster encephalitis, myelitis and encephalomyelitis (B02.0)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["G05","G05.4"],"inclusionTerms":["Meningoencephalitis in diseases classified elsewhere"],"sibling_titles":{"code":"G05.4","title":"Myelitis in diseases classified elsewhere","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Encephalitis and encephalomyelitis in diseases classified elsewhere is a billable ICD-10-CM diagnosis code (G05.3). Inclusion terms: Meningoencephalitis in diseases classified elsewhere. Excludes1 (not coded here): adenoviral encephalitis, myelitis and encephalomyelitis (A85.1); encephalitis, myelitis and encephalomyelitis (in) measles (B05.0); enteroviral encephalitis, myelitis and encephalomyelitis (A85.0); herpesviral [herpes simplex] encephalitis, myelitis and encephalomyelitis (B00.","officialDefinition":"Encephalitis and encephalomyelitis in diseases classified elsewhere is a billable ICD-10-CM diagnosis code (G05.3). Inclusion terms: Meningoencephalitis in diseases classified elsewhere. Excludes1 (not coded here): adenoviral encephalitis, myelitis and encephalomyelitis (A85.1); encephalitis, myelitis and encephalomyelitis (in) measles (B05.0); enteroviral encephalitis, myelitis and encephalomyelitis (A85.0); herpesviral [herpes simplex] encephalitis, myelitis and encephalomyelitis (B00.4); listerial encephalitis, myelitis and encephalomyelitis (A32.12); meningococcal encephalitis, myelitis and encephalomyelitis (A39.81); mumps encephalitis, myelitis and encephalomyelitis (B26.2); postchickenpox encephalitis, myelitis and encephalomyelitis (B01.1-); rubella encephalitis, myelitis and encephalomyelitis (B06.01); toxoplasmosis encephalitis, myelitis and encephalomyelitis (B58.2); zoster encephalitis, myelitis and encephalomyelitis (B02.0). Code first: underlying disease; underlying disease, such as:; congenital toxoplasmosis encephalitis, myelitis and encephalomyelitis (P37.1); cytomegaloviral encephalitis, myelitis and encephalomyelitis (B25.8); encephalitis, myelitis and encephalomyelitis (in) systemic lupus erythematosus (M32.19); eosinophilic meningoencephalitis (B83.2); human immunodeficiency virus [HIV] disease (B20); poliovirus (A80.-); suppurative otitis media (H66.01-H66.4); systemic lupus erythematosus (M32.19); trichinellosis (B75).","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":""}