Diagnosis Code: 049.8

Short Description: Viral encephalitis NEC

Long Description: Other specified non-arthropod-borne viral diseases of central nervous system

Code Classification:

• Infectious and parasitic diseases (001–139)
  • Poliomyelitis and other non-arthropod-borne viral diseases of central nervous system (045-049)
    • 049 Other non-arthropod-borne viral diseases of central nervous system
      • 049.8 Viral encephalitis NEC

Code Version: 2015 ICD-9-CM

Synonyms

• Acute necrotizing encephalitis
• Adenoviral encephalitis
• Dubini's chorea
• Electric chorea
• Encephalitis lethargica
• Epidemic encephalitis
• Fungal encephalitis
• Infective encephalitis
• Rhabdovirus encephalitis
• Rio Bravo fever
• Rio Bravo viral encephalitis

References to Index of Diseases and Injuries

The code 049.8 has the following ICD-9-CM references to the Index of Diseases and Injuries

• Akureyri disease (epidemic neuromyasthenia) 049.8

• Chorea (gravis) (minor) (spasmodic) 333.5
  • electric 049.8

• Cruchet's disease (encephalitis lethargica) 049.8

• Disease, diseased - see also Syndrome
  • Akureyri (epidemic neuromyasthenia) 049.8
  • Cruchet's (encephalitis lethargica) 049.8
  • Dubini's (electric chorea) 049.8
  • Economo's (encephalitis lethargica) 049.8
  • Guertin's (electric chorea) 049.8
  • iceland (epidemic neuromyasthenia) 049.8
  • virus (filterable) NEC 078.89
    • central nervous system NEC 049.9
      • specified type NEC 049.8
    • nonarthropod-borne NEC 078.89
      • central nervous system NEC 049.9
        • specified NEC 049.8
  • von Economo's (encephalitis lethargica) 049.8

• Dubini's disease (electric chorea) 049.8

• Economo's disease (encephalitis lethargica) 049.8

• Encephalitis (bacterial) (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) 323.9
  • acute - see also Encephalitis, viral
    • inclusional 049.8
    • inclusion body 049.8
    • necrotizing 049.8
  • endemic 049.8
  • epidemic 049.8
  • infectious (acute) (virus) NEC 049.8
  • influenzal (see also Influenza) 487.8 [323.41]
    • lethargic 049.8
  • lethargic (acute) (infectious) (influenzal) 049.8
  • lethargica 049.8
  • Mengo 049.8
  • myoclonic 049.8
  • Rio Bravo 049.8
  • Vienna type 049.8
  • viral, virus 049.9
    • specified type NEC 049.8
  • von Economo's 049.8

• Encephalomyelitis (chronic) (granulomatous) (myalgic, benign) (see also Encephalitis) 323.9
  • abortive disseminated 049.8
  • funicularis infectiosa 049.8
  • Munch-Peterson's 049.8

• Guertin's disease (electric chorea) 049.8

• Iceland disease (epidemic neuromyasthenia) 049.8

• Late - see also condition
  • effect(s) (of) - see also condition
    • encephalitis or encephalomyelitis (conditions classifiable to 323) - see category 326
      • in infectious diseases 139.8
        • viral (conditions classifiable to 049.8, 049.9, 062-064) 139.0
    • viral encephalitis (conditions classifiable to 049.8, 049.9, 062-064) 139.0

• Meningomyelitis (see also Meningoencephalitis) 323.9
  • lethargic 049.8

• Neuromyasthenia (epidemic) 049.8

• Vienna-type encephalitis 049.8

• von Economo's disease (encephalitis lethargica) 049.8

Crosswalk Information

The code 049.8 converts into the following ICD-10 code(s):

Similar Codes

This page was last updated on: 10/1/2014

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