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G04.01
Billable

Postinfectious acute disseminated encephalitis and encephalomyelitis (postinfectious ADEM)

Chapter 6: Diseases of the nervous system

Excludes1

3 items
  • post chickenpox encephalitis (B01.1)
  • post measles encephalitis (B05.0)
  • post measles myelitis (B05.1)

Billable Code

G04.01 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

Additional Information from Parent Codes

The following information may apply to this code from its parent codes in the ICD-10 hierarchy. This information is important for proper coding and classification.

Includes

3 items

From G04:

  • acute ascending myelitis
  • meningoencephalitis
  • meningomyelitis

Excludes1

3 items

From G04:

  • encephalopathy NOS (G93.40)

From G04.0:

  • acute necrotizing hemorrhagic encephalopathy (G04.3-)
  • other noninfectious acute disseminated encephalomyelitis (noninfectious ADEM) (G04.81)

Excludes2

15 items

From G00-G99:

  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

From G04:

  • acute transverse myelitis (G37.3)
  • alcoholic encephalopathy (G31.2)
  • multiple sclerosis (G35)
  • myalgic encephalomyelitis (G93.32)
  • subacute necrotizing myelitis (G37.4)
  • toxic encephalitis (G92.8)
  • toxic encephalopathy (G92.8)
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