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323.81 ENCEPH & ENCEPHLALO NEC


Code Information

Diagnosis Code: 323.81

Short Description: Enceph & encephlalo NEC

Long Description: Other causes of encephalitis and encephalomyelitis

Code Classification:

  • Diseases of the nervous system (320–359)
    • Inflammatory diseases of the central nervous system (320-327)
      • 323 Encephalitis, myelitis, and encephalomyelitis
        • 323.81 Enceph & encephlalo NEC

Code Version: 2015 ICD-9-CM


Synonyms

  • Allergic encephalitis
  • Allergic encephalomyelitis
  • Autoimmune encephalitis
  • Bickerstaff's brainstem encephalitis
  • Eosinophilic meningoencephalitis
  • Eosinophilic meningoencephalitis due to Angiostrongylus cantonensis
  • Experimental allergic encephalomyelitis
  • Hereditary diffuse leukoencephalopathy with spheroids
  • Inflammation of brain and spinal cord due to toxic substance
  • Jamestown Canyon virus encephalitis
  • Paraneoplastic encephalitis
  • Paraneoplastic encephalomyelitis
  • Paraneoplastic limbic encephalitis
  • Pyogranulomatous meningoencephalomyelitis
  • Systemic lupus erythematosus encephalitis

References to Index of Diseases and Injuries

The code 323.81 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • ADEM (acute disseminated encephalomyelitis) (postinfectious) 136.9 [323.61]
    • noninfectious 323.81
  • Encephalitis (bacterial) (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) 323.9
    • lupus 710.0 [323.81]
    • posttraumatic 323.81
    • Rasmussen 323.81
    • specified cause NEC 323.81
  • Encephalomyelitis (chronic) (granulomatous) (myalgic, benign) (see also Encephalitis) 323.9
    • acute disseminated (ADEM) (postinfectious) 136.9 [323.61]
      • noninfectious 323.81
    • specified cause NEC 323.81
  • Lupus 710.0
    • erythematosus (discoid) (local) 695.4
      • systemic 710.0
        • with
          • encephalitis 710.0 [323.81]

Crosswalk Information

The code 323.81 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
323.81 Right Arrow G04.81 Other encephalitis and encephalomyelitis
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
323.01 Encephalitis and encephalomyelitis in viral diseases classified elsewhere
323.02 Myelitis in viral diseases classified elsewhere
323.1 Encephalitis, myelitis, and encephalomyelitis in rickettsial diseases classified elsewhere
323.2 Encephalitis, myelitis, and encephalomyelitis in protozoal diseases classified elsewhere
323.41 Other encephalitis and encephalomyelitis due to other infections classified elsewhere
323.42 Other myelitis due to other infections classified elsewhere
323.51 Encephalitis and encephalomyelitis following immunization procedures
323.52 Myelitis following immunization procedures
323.61 Infectious acute disseminated encephalomyelitis (ADEM)
323.62 Other postinfectious encephalitis and encephalomyelitis
323.63 Postinfectious myelitis
323.71 Toxic encephalitis and encephalomyelitis
323.72 Toxic myelitis
323.82 Other causes of myelitis
323.9 Unspecified causes of encephalitis, myelitis, and encephalomyelitis

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

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