323: Encephalitis, myelitis, and encephalomyelitis
Includes:
acute disseminated encephalomyelitis
meningoencephalitis, except bacterial
meningomyelitis, except bacterial
myelitis:
ascending
transverse
Excludes:
acute transverse myelitis NOS (341.20)
acute transverse myelitis in conditions classified elsewhere (341.21)
bacterial:
meningoencephalitis (320.0-320.9)
meningomyelitis (320.0-320.9)
idiopathic transverse myelitis (341.22)
323.5 Encephalitis, myelitis, and encephalomyelitis following immunization procedures
Use additional E code to identify vaccine
323.51: Encephalitis and encephalomyelitis following immunization procedures
Encephalitis postimmunization or postvaccinal
Encephalomyelitis postimmunization or postvaccinal
323.52: Myelitis following immunization procedures
Myelitis postimmunization or postvaccinal

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