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2009 ICD-9-CM
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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) | |
 | 323.0 Encephalitis, myelitis, and encephalomyelitis in viral diseases classified elsewhere
Code first underlying disease, as:
cat-scratch disease (078.3)
infectious mononucleosis (075)
ornithosis (073.7) |
 eicd10 | 323.1 Encephalitis, myelitis, and encephalomyelitis in rickettsial diseases classified elsewhere
Code first underlying disease (080-083.9) |
| eicd10 | 323.2 Encephalitis, myelitis, and encephalomyelitis in protozoal diseases classified elsewhere
Code first underlying disease, as:
malaria (084.0-084.9)
trypanosomiasis (086.0-086.9) |
| 323.4 Other encephalitis, myelitis, and encephalomyelitis due to infection classified elsewhere
Code first underlying disease |
| 323.5 Encephalitis, myelitis, and encephalomyelitis following immunization procedures
Use additional E code to identify vaccine |
| 323.6 Postinfectious encephalitis, myelitis, and encephalomyelitis
Code first underlying disease |
| 323.7 Toxic encephalitis, myelitis, and encephalomyelitis
Code first underlying cause, as:
carbon tetrachloride (982.1)
hydroxyquinoline derivatives (961.3)
lead (984.0-984.9)
mercury (985.0)
thallium (985.8) |
| |
| eicd10 | 323.9 Unspecified cause of encephalitis, myelitis, and encephalomyelitis |